CSA
Summary
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Solar Energy:
As the Cost of This Resource Becomes More Competitive With
Other Renewable Resources, Applications to Construct New
Solar Power Plants Should Increase
January 2008 Report 2007-119
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CALIFORNIA STATE AUDITOR
Elaine M. Howle
State Auditor
Doug Cordiner B u r e a u o f S t a t e A u d i t s
Chief Deputy
555 Capitol Mall, Suite 300 Sacramento, CA 95814 916.445.0255 916.327.0019 fax www.bsa.ca.gov
January 24, 2008 2007-119
The Governor of California
President pro Tempore of the Senate
Speaker of the Assembly
State Capitol
Sacramento, California 95814
Dear Governor and Legislative Leaders:
As requested by the Joint Legislative Audit Committee, the Bureau of State Audits presents its
audit report concerning the siting and permitting of large solar power plants—those of at least
50 megawatts—and related transmission lines.
This report concludes that although the State has set goals for increasing the use of electricity
generated from renewable sources such as wind, geothermal, and solar, several factors have
contributed to the lack of development of solar power plants. These factors include the lower
cost of electricity generated from other renewable sources, the need for large investments in land
and infrastructure, and an unproductive incentive system designed to help firms that generate
power from renewable sources meet their costs. However, actions by the State and a changing
energy market appear to have spurred interest in solar power plants in California.
Our review also concluded that a developer wishing to build a new large solar power plant
generally will follow one of four possible approval tracks, depending on the type of plant proposed
and the government agency that has jurisdiction over the land on which the new plant will be
built. Each track has three primary components: land use review, environmental review, and
review of related infrastructure such as new or upgraded transmission lines and interconnection
to the power grid.
A review of recent nonsolar related applications (the State last approved a large solar power
plant in 1990) indicates that the average time for obtaining approvals to build a power plant,
transmission lines, and interconnect to the power grid, totals about 39 months. The delays we
observed in approving some applications we reviewed were due to factors outside the control of
the approval agencies. However, because applications for power plants, transmission lines, and
interconnection to the power grid can be processed concurrently, a delay in obtaining one may
not necessarily delay another. Finally, the protections provided by each approval process exist to
accomplish various goals, but without approved applications for large solar power plants we did
not determine whether certain aspects may be unnecessary or overly burdensome.
Respectfully submitted,
ELAINE M. HOWLE
State Auditor
California State Auditor Report 2007-119 vii
January 2008
Contents
Summary 1
Introduction 5
Audit Results
Economic Considerations Have Played a Large Role in the
Lack of Applications to Build Large Solar Power Plants 15
Approvals to Build Large Solar Power Plants Involve Several Entities 21
Applications We Reviewed Went Through Processes Similar to
Those Required for Some Types of Solar Power Plants 32
Responses to the Audit
State Energy Resources Conservation and Development Commission 39
California State Auditor’s Comments on the Response From
the State Energy Resources Conservation and Development Commission 4 1
California Public Utilities Commission 43
California State Auditor’s Comments on the Response From
the California Public Utilities Commission 47
California State Auditor Report 2007-119 1
January 2008
Summary
Audit Highlights . . .
Results in Brief Our review of the siting and permitting
process for large solar power plants revealed
Electricity lights our homes; cooks our food; and powers our the following:
computers, television sets, and other electronic devices. However,
on several occasions over the last five years, Californians curtailed » Although the State has set goals for
their consumption of electricity to prevent larger outages. These increasing the use of electricity generated
curtailments are reminders of California’s need to increase the from renewable sources, no applications to
supply of available electricity. build large solar power plants have been
approved since 1990.
California’s largest source of electricity is power plants burning
natural gas. To help meet the State’s need for electricity, as well as » Several factors have contributed to
to reduce the harm that using fossil fuels such as natural gas can the lack of development of large solar
cause to the environment and to become less reliant on imported power plants, including other renewable
fuels, the State has enacted legislation to increase the amount sources that cost less, the need for large
of electricity generated from renewable sources, such as wind, investments in land and infrastructure,
geothermal, and solar energy. and an unproductive system designed to
help meet the higher cost of producing
Solar power offers an attractive approach to help meet peak demands electricity from renewable sources.
for electricity, but the availability of other renewable sources that
cost less, the need for large investments in land and infrastructure, » Developers wishing to build a large solar
and an unproductive incentive system designed to help firms power plant generally will follow one of
that generate power from renewable sources meet their costs four possible approval tracks, depending
have contributed to a lack of development of solar power plants. on the type of plant proposed and the
However, the State and the changing energy market are beginning government agency that has jurisdiction
to address the negative effects of those three factors. over the land on which the new plant will
be built. Each of the four approval tracks
Steps have been taken that should result in more applications to includes three major components: land
develop large solar power plants, but the processes of obtaining use review, environmental review, and
the approvals necessary to construct a large solar power plant review of related infrastructure such as
and transmit the electricity it will generate are complex. A new or upgraded transmission lines and
developer wishing to build a large solar power plant generally will interconnection to the power grid.
follow one of four possible approval tracks, depending on the type
of plant proposed and the government agency that has jurisdiction » The various roles filled by each agency and
over the land on which the new plant will be built. Each of the the protections provided by each approval
four approval tracks has three principal components: land use process exist to accomplish various goals.
review, environmental review, and review of related infrastructure Without approved applications for large
such as transmission lines or interconnection to the power grid. solar power plants, we did not determine
However, regardless of which track a developer uses, no single what aspects may be unnecessary or
entity is responsible for providing all the approvals necessary to overly burdensome.
begin providing electricity generated by a large solar power plant
to consumers.
To build a large solar power plant, a developer must ensure that
the uses permitted in the federal or local land use plan include
large solar power plants. If they do not, the developer must obtain
approval of amendments or changes to the plan. Reviews of
environmental impacts are also an integral piece of the approval
2 California State Auditor Report 2007-119
January 2008
process. These reviews require the involvement of the public and
agencies with jurisdiction over the area. Besides land use
and environmental reviews, a developer must obtain approval to
interconnect the proposed power plant to the power grid and may
need to build or upgrade long transmission lines from the power
grid to the remote locations where solar energy is abundant.
Because no applications to build large solar power plants
have been approved since 1990, the type of analysis we could
perform was constrained. Moreover, environmental review
is a process that varies based on the unique characteristics of
the project and involves different agencies depending on those
characteristics. Although project comparisons were limited,
because the approval process is the same for applications for all
large thermal power plants whether solar or not, we analyzed
recent applications for large nonsolar thermal power plants that
the State Energy Resources Conservation and Development
Commission (energy commission) had approved.1 We also reviewed
applications for new transmission lines related to other types
of power generation, as well as applications to connect other
types of power plants to the power grid.
For the 15 approved applications for nonsolar powerplants we
reviewed, the approval process took an average of 674 days, 309 more
than the established 365-day timeline. For two applications that we
reviewed in more detail, delays in this process were largely the result
of factors over which the energy commission has no control, such
as applicants changing their applications or failing to provide
information in a timely manner. Similarly, although the California
Public Utilities Commission (utilities commission) has a 365-day
timeline for approving applications for transmission lines, it took
an average of 187 days longer, for an average total of 552 days, to
approve the three applications we reviewed. Again, factors such as
the opposition of a city through which a transmission line was to
be routed and waiting for the environmental review from a federal
agency caused the utilities commission to take longer than its
established timeline. Finally, for the 10 applications to connect to
the power grid that we reviewed, the approval process used by the
California Independent System Operator (CAISO) took an average
of seven months longer than its established two-year timeline. The
CAISO only recently took over the responsibility, however.
Because some of the required approval processes can be performed
concurrently, a delay in obtaining one approval may not necessarily
delay the entire process, and although they sometimes contribute
1 In our report, we refer to this commission as it is named in state law. However, on its Web site and
letterhead, the commission refers to itself as the California Energy Commission.
California State Auditor Report 2007-119 3
January 2008
to the delays, the environmental reviews mandated by law are a
significant aspect of the process. Although the approval processes
used by the different agencies were established to accomplish
certain goals, without applications for large solar power plants we
did not determine if the costs of these processes were justified by
the benefits the different processes provided.
Agency Comments
The energy commission and the utilities commission responded
in writing to our report. While not disputing any information we
presented, the two commissions provided additional information
related to specific topics we addressed. Further, the utilities
commission provided information on recent events intended to
address challenges for developing transmission infrastructure and
for administering the interconnection queue. The CAISO opted not
to respond formally to our report.
4 California State Auditor Report 2007-119
January 2008
Blank page inserted for reproduction purposes only.
California State Auditor Report 2007-119 5
January 2008
Introduction
Background
Electricity is essential to many aspects of our lives. It lights our
homes; cooks our food; and powers our computers, television sets,
and other electronic devices. However, when
the amount of electricity consumed approaches the
amount available, outages can occur. On four
Sources of Electrical Energy in California
occasions since June 2002, California’s consumption
2006
of electricity was curtailed to prevent larger outages.
These curtailments are reminders of the need to Conventional Sources
increase the supply of available electricity in
Natural gas 41.5%
California to keep up with a demand that the State
Energy Resources Conservation and Development Large hydro* 19.0
Commission (energy commission) forecasts will
Coal 15.7
continue to rise. However, that effort must be
Nuclear 12.9
balanced with concerns over the environmental
impact of electricity production. Subtotal 89.1%
Information from the energy commission shows Renewable Sources†
that more than half of California’s electricity comes
Geothermal 4.7
from power plants burning nonrenewable fossil fuels
Biomass‡ 2.1
like natural gas and coal (see the text box).2 Burning
fossil fuels creates emissions, including greenhouse Small hydro 2.1
gases.3 Concerns about the environmental effects of
Wind 1.8
using fossil fuels and the reliance on imported fuels
have led the State to recognize the importance of Solar 0.2
developing renewable sources of electricity. Subtotal 10.9%
Total 100.0%
In 2002 the State enacted legislation creating the
California Renewables Portfolio Standard Program Source: 2007 Integrated Energy Policy Report adopted by
the State Energy Resources Conservation and Development
(renewables portfolio program) to increase the
Commission, December 2007.
amount of electricity generated from renewable
* Under state law, a hydropower facility of more than
sources, such as wind, geothermal, and solar 30 megawatts is considered a conventional power source.
energy. The legislation requires entities such as † The State Energy Resources Conservation and Development
Commission defines renewable as a power source other than
investor-owned electric companies to obtain an
a conventional power source.
increasing percentage of their electricity from ‡ Biomass uses wood, grass, or other biological materials as fuel.
renewable sources.4 It also encourages publicly
2 Nonrenewable fuels exist in finite amounts and once consumed are not renewed naturally;
renewable sources of energy are replenishable.
3 Greenhouse gases trap the sun’s heat and contribute to rising surface temperatures. Examples
include carbon dioxide, methane, and nitrous oxide.
4 Investor-owned utilities are publicly traded corporations that provide electrical service for
customers and earn profits for shareholders. Pacific Gas and Electric, Southern California Edison,
and San Diego Gas and Electric are examples of investor-owned utilities. Publicly owned utilities
are owned by customers who elect boards of directors under legally established monopoly
conditions. Publicly owned utilities can be organized into public utility districts to provide
electrical service. The Imperial Irrigation District, the Los Angeles Department of Water and
Power, the Sacramento Municipal Utility District, and the Turlock Irrigation District are examples
of publicly owned utilities.
6 California State Auditor Report 2007-119
January 2008
owned utilities to increase their proportion of electricity generated
from renewable sources. The legislation also includes a provision
for supplemental energy payments, which the State can award
to renewable-energy generators (generators) to cover costs
exceeding the market cost for electricity produced from natural
gas, as determined by the California Public Utilities Commission
(utilities commission).
Solar Power Offers Possible Solutions to Energy Shortfalls and
Environmental Concerns
Although the renewables portfolio program is intended to encourage
the development of cleaner electricity from renewable sources, not
all types of electricity produced from these sources are available
during peak-demand periods. According to the energy commission,
the demand for electricity is higher in the summer than in the
winter. The energy commission also indicated that demand for
electricity can vary significantly throughout the day. The highest
demand for electricity is often caused by air-conditioner use in the
afternoon, as shown in Figure 1.
Figure 1
Typical Peak-Demand Curve
50,000
45,000 Residential air conditioning
40,000
Commercial air conditioning
35,000
Commercial interior lighting
30,000
Residential lighting and miscellaneous
Residential refrigeration
25,000 Commercial—other
Commercial ventilation
Residential cooking
20,000
Residential clothes dryer
15,000 Remainder of commercial and residential Commercial refrigeration
10,000 Industrial sector
5,000 Transportation, communication, utilities,
agricultural, and other
0
1 3 5 7 9 11 1 3 5 7 9 11
A.M. P.M.
Time of day
*sttawageM
Source: California’s Electricity System Supply and Demand Overview, presentation by Jeffrey Byron, Commissioner, State Energy Resources
Conservation and Development Commission (energy commission), to the California State Assembly Utilities and Commerce Committee, Informational
Hearing, March 29, 2007.
* According to the energy commission, 1 megawatt will provide electricity for approximately 750 homes.
California State Auditor Report 2007-119 7
January 2008
Because electricity is consumed the instant it is generated,
balancing generation with consumption is a key concern. For
example, according to information from the energy commission,
wind generation can peak at various times of the day depending
on the season and location. These peak times may not coincide
with peak demand, which occurs mid-afternoon to early evening.
Solar power offers an attractive approach to help meet the demand
for electricity because its period of greatest availability roughly
coincides with California’s peak-demand time. Solar power
generation begins in the morning, when demand for electricity
begins to increase, and peaks in the early afternoon, when demand
is approaching its highest.
Solar energy is more available in some parts of the country than in
others. The amount of energy given off by the sun that reaches a
particular area of the earth depends on several variables, including
the moisture content of the air, cloud cover, air pollution, and
latitude. According to the U.S. Department of Energy’s National
Renewable Energy Laboratory, California is an attractive location
for producing solar power because the Mojave Desert can receive
more than twice the solar energy that other parts of the country
receive. Figure 2 depicts the amount of solar energy the Mojave
Desert receives.
Figure 2
Solar Thermal Resources in California
Mojave Desert
Watt hours per
square meter per day
3,500 to 4,000
4,000 to 4,500
4,500 to 5,000
5,000 to 5,500
5,500 to 6,000
6,000 to 6,500
Mojave Desert
6,500 to 7,000
7,000 to 7,500
Sources: United States Department of Energy, Office of Energy Efficiency and Renewable Energy,
and United States Department of the Interior, United States Geological Survey.
8 California State Auditor Report 2007-119
January 2008
Figure 3
Thermal Solar Energy Conversion Systems
Trough
Dish/engine system
Power tower
Sources: United States Department of Energy, National Renewable Energy Laboratory.
Photographs from top to bottom by: Geri Kodey; Stirling Energy Systems; and Joe Flores, Southern
California Edison.
California State Auditor Report 2007-119 9
January 2008
Two technologies are primarily used to convert solar energy into
electricity: thermal systems and photovoltaic systems. Thermal systems
use heat to drive a turbine, which is then used to create electricity from
generators. Solar thermal systems concentrate sunlight to create the
necessary heat. As shown in Figure 3, common types of solar thermal
systems are troughs, dish/engine systems, and power towers. The
second technology, photovoltaic systems such as solar cells, shown in
Figure 4, generates electricity directly from sunlight.
Figure 4
Photovoltaic Solar Energy Conversion System
Solar cells
Sources: United States Department of Energy, National Renewable Energy Laboratory. Photograph:
Sacramento Municipal Utility District.
Power Plant Attributes Determine Which Entities Must Approve
the Project
Entities at the federal, state, and local levels can be involved in
approving the construction of new solar power plants and related
transmission lines, as shown in the text box on the following page.
The energy commission is responsible for approving applications for
thermal power plants of 50 megawatts or more in California, including
all new large solar thermal power plants.5 Since 1991 the energy
commission has received only two applications to construct large solar
thermal facilities.
5 For the purposes of our report, we refer to power plants of 50 megawatts or more as large power
plants. According to the California Independent System Operator, electricity consumption from
its portion of the power grid reached a record peak of 50,300 megawatts on July 24, 2006.
10 California State Auditor Report 2007-119
January 2008
For large solar thermal power plants located on
Entities That May Be Involved in Approving federal land administered by the federal Bureau of
New Large Solar Power Plants
Land Management (BLM), both the BLM and the
energy commission must give their approval, as
Federal Bureau of Land Management: Approves
outlined in a memorandum of understanding
rights‑of‑way for power plants and related transmission
between the two entities. A solar photovoltaic plant
lines on BLM‑administered lands.
falls under the jurisdiction of the local government
State Energy Resources Conservation and Development
or the BLM, depending on the plant’s location. The
Commission: Approves large thermal power plants and
BLM has received about 50 applications for large
related facilities such as transmission lines to the point
solar power facilities since January 2006. However,
of interconnection to the power grid on private and
the results of our county survey show that
federal land.
California’s 58 counties received no applications for
California Public Utilities Commission: Approves new
siting large solar photovoltaic power plants.
or upgraded transmission lines after the point at which
the generator interconnects to the power grid, for
Approvals are also necessary for infrastructure
investor‑owned utilities.
related to new power plants. The utilities
California Independent System Operator: As a system commission approves the construction of new
operator, approves connection of new power plants to the
or upgraded transmission lines owned or built
power grid.
by investor-owned utilities. These lines transmit
Counties and Cities: Approve photovoltaic power electricity across the power grid.6 System operators
plants on nonfederal land, usually through the land use that manage the power grid, such as the California
review process. Independent System Operator (CAISO), approve
the interconnection of new power-generating
Sources: Documentation provided by the federal Bureau of
Land Management, the State Energy Resources Conservation facilities to the power grid.7
and Development Commission, the California Public Utilities
Commission, and a survey of California counties.
Power Plants Use the Power Grid to Transmit Electricity
to Consumers
As shown in Figure 5, the process of generating and transmitting
electricity involves a series of facilities and functions that can be
approved by numerous entities, including federal, state, and local
government agencies. Simply stated, electricity flows across a power
grid from generators to consumers. According to the CAISO,
the State’s power grid is a network of long-distance, high-voltage
transmission lines and substations that carry bulk electricity to
local utilities for distribution to their customers. The power grid is
managed by several system operators responsible for monitoring and
controlling the system in real time. The CAISO and four public utility
system operators manage portions of the power grid that provide
electricity to most areas in the State. In addition, two multistate
6 We did not examine as part of our review new or upgraded transmission lines owned or
operated by publicly owned utilities, a form of local government; they approve their own
transmission infrastructure.
7 Interconnect is a term of art in the energy industry, and refers to the mutual or reciprocal
connection of one system to another. As used in our report, interconnection refers to
the connection of one system (such as a power plant) to another system (such as the power grid).
California State Auditor Report 2007-119 11
January 2008
Figure 5
Electricity Transmission From Generators to Consumers
POWER GRID
TRANSMISSION LINES
POWER PLANTS FROM POWER PLANTS SUBSTATIONS TRANSMISSION LINES SUBSTATIONS DISTRIBUTION LINES CONSUMERS
State Energy Resources Conservation and
APPROVED BY Development Commission, federal Bureau California Public Utilities Commission
of Land Management, or local government
Sources: Information provided by the U.S. Department of Energy, the federal Bureau of Land Management, the California Public Utilities Commission,
the State Energy Resources Conservation and Development Commission, and federal and state law.
system operators manage portions of California’s power grid that
provide electricity to customers along California’s northern border
and the area near Lake Tahoe.
Power plants generate electricity that flows to substations over
transmission lines. Substations transmit it over the power grid
to other substations. From there, the electricity travels through
distribution lines to consumers. Three elements of supplying
electricity—generating it, transporting it to the power grid,
and building new or upgraded transmission lines necessary to
accommodate the new electricity—are subject to the approval
processes reviewed in this report.
Scope and Methodology
The Joint Legislative Audit Committee (audit committee) requested
the Bureau of State Audits to review the siting and permitting
of large solar energy power plants and related transmission
lines. Specifically, the audit committee requested that we review
and assess the process for siting and permitting large facilities
generating solar power—those greater than 50 megawatts—and
associated transmission lines; determine various statistics related
12 California State Auditor Report 2007-119
January 2008
to that process, such as the number of applications approved
since 2002, the number of received applications, the number of
denied applications, and the time required for approval; and identify
obstacles and recommend measures to streamline the process. The
audit committee also requested that we determine the roles and
responsibilities of the agencies involved in the renewables portfolio
program, how those agencies collaborate and communicate, and if
there is any duplication of effort or opportunities for improvement.
At the time of our audit, no applications for large solar power plants
had been recently approved. Due to the nature of the application
process, significant differences can exist between different types
of power plants approved through the same or similar application
processes. As such, our use of these data was descriptive; we do
not use the nonsolar applications to reach conclusions regarding
the amount of time taken to process solar-related applications.
Accordingly, we limited our review to specific applications selected
from those the agencies provided us for the periods described, and did
not perform data reliability procedures for the lists of applications we
were provided. During our audit work no additional applications came
to our attention through the performance of the audit procedures.
To review and assess the siting and permitting of large solar thermal
plants, we interviewed energy commission staff and reviewed
the process used by the energy commission. However, the energy
commission did not receive any applications for large solar power
plants from 1992 through July 2007. We therefore reviewed the
last two large solar power plants the energy commission approved
in 1989 and 1990. Further, because the energy commission uses
a single process to review and approve applications to develop
new thermal power plants within its jurisdiction, regardless of
the resource used to generate the power, we reviewed the time
necessary to approve 15 applications for large power plants powered
by resources other than solar energy. The energy commission
approved these applications from 2002 through 2006. In reviewing
the applications, we determined various dates in the approval
process and for two of them identified the cause of the delays. We
also looked for opportunities to streamline the process.
To understand the BLM’s process for approving solar power
plants, we interviewed BLM staff, identified the BLM’s policies for
assessing and approving right-of-way grant applications for large
solar power plants, and determined how the BLM and the energy
commission coordinate and cooperate in conducting environmental
reviews. Because the BLM administers the federal land in California
on which about 50 large solar power plants have been proposed,
we limited our review of projects on federal land to those on
BLM-administered land.
California State Auditor Report 2007-119 13
January 2008
To determine the siting and permitting processes for large solar
power plants that use photovoltaic technology, over which the
energy commission does not have jurisdiction, we surveyed
California’s 58 counties to determine whether they had received
any applications to build large solar power plants, and what
processes each county would use to approve large solar power
plant applications.
To gain an understanding of the role played by system operators
in the interconnection of large solar power plants to the power
grid, we interviewed staff of the CAISO and reviewed information
about the seven system operators we identified. Because the CAISO
controls 75 percent of California’s power grid, we limited nearly
all of our review of system operators to the CAISO. To assess the
CAISO’s processing of applications to connect to the power grid,
we compared the start and approval dates of applications to the
CAISO’s timeline. Because there were no applications related to
large solar power plants, we limited this review to applications from
nonsolar power plants approved since May 2006, when the CAISO
took over responsibility for administering this process.
To review and assess the siting and permitting process for the
construction of transmission lines related to new large solar power
plants past the point at which the power plant connects to the
power grid, we reviewed procedures and interviewed staff of
the utilities commission. We limited our review to those applications
submitted to the utilities commission, because it has jurisdiction
over the investor-owned utilities subject to the renewables portfolio
program. Because there were no applications for transmission
line projects related to renewable energy from 2002 through
November 2004, we reviewed complete applications for transmission
line projects since that time to determine if the utilities commission
approved the applications within its established timeline. We then
identified the reasons for any significant delays in the processing of
these applications.
To determine the roles and responsibilities of the state agencies
involved in the renewables portfolio program, how those agencies
collaborate and communicate, and if there is any duplication of
effort or opportunities for improvement, we reviewed relevant state
laws, interviewed staff at the energy commission and the utilities
commission, and reviewed the procedures used by each agency
to carry out its responsibilities under the renewables portfolio
program. Under these procedures the energy commission is
charged with certifying renewable resources as being eligible for
the renewables portfolio program, developing and maintaining
an accounting system to verify compliance with the requirements
of the program, and awarding supplemental energy payments to
generators of renewable power to cover costs that are above market.
14 California State Auditor Report 2007-119
January 2008
The utilities commission is responsible for approving or rejecting
requests from investor-owned utilities to enter into specific
contracts for renewable power, including establishing whether a
solicitation is adequately competitive; determining investor-owned
utilities’ annual targets for the purchase of renewable energy; and
establishing a methodology for determining the “market price
referents,” which are benchmarks at or below which contracts
will be considered reasonable. Our review of these roles and
responsibilities identified no duplication of effort; therefore, we
believe the separation of duties appears appropriate and reasonable.
California State Auditor Report 2007-119 15
January 2008
Audit Results
Economic Considerations Have Played a Large Role in the Lack of
Applications to Build Large Solar Power Plants
Although the State has set goals for increasing the use of electricity
generated from renewable sources, no applications to build
solar power plants have been approved since 1990. However, as
of October 2007, the State Energy Resources Conservation and
Development Commission (energy commission) had received
two applications to build new large solar power plants—those
producing 50 megawatts or more of electricity—in California.
We identified three factors that we believe contributed to the lack
of development of solar power plants: the availability of other
renewable sources that cost less, the need for large investments
in land and infrastructure, and an unproductive incentive system
designed to help firms that generate power from renewable sources
meet their costs. The State and the changing energy market are only
now beginning to address the negative effects of these three factors.
In 2002 the State enacted legislation to encourage the development
of environmentally clean, renewable sources of electricity, including
solar. However, according to data provided by the California Public
Utilities Commission (utilities commission), electricity generated
from solar energy has traditionally been more expensive than
electricity generated from most other renewable sources. The
development of solar power has also been
hampered by the requirement for large tracts of
suitable land and a scarcity of existing transmission Least-Cost, Best-Fit Criteria Used by
facilities. However, it now appears that the rising Investor-Owned Utilities to Evaluate
cost of natural gas, improvements in technology, Renewable Energy Generators
and legislative changes have combined to help make
Market Valuation: Such as energy prices, production
solar energy more competitive with electricity
costs to serve customer demand and transmission costs.
generated from other sources.
Portfolio Fit: Such as total energy produced and time
The California Renewables Portfolio Standard of delivery.
Program (renewables portfolio program) requires Credit and Collateral: Such as demonstrating financial
investor-owned utilities to increase the acquisition strength and creditworthiness.
of electricity generated from renewable sources,
Project Viability: Such as participant experience and the
such as solar energy. Under the renewables portfolio
likelihood of obtaining required permits.
program, investor-owned utilities solicit bids
from electricity generators (generators) offering Other Qualitative Factors: Such as location, renewable
portfolio standards, water quality impacts, and benefits to
to supply electricity from renewable sources. The
minority and low‑income areas.
investor-owned utilities then evaluate those bids on
a least-cost, best-fit basis (see the text box). Each Sources: Bureau of State Audits’ review of investor-owned
investor-owned utility uses a least-cost, best-fit utilities’ Renewables Portfolio Standards bid evaluation and
selection process and criteria reports.
method that it created and had approved by the
utilities commission. After evaluating the bids, an
investor-owned utility contracts with a generator
16 California State Auditor Report 2007-119
January 2008
to obtain electricity from a renewable source. The investor-
owned utility pays the market rate or below for the electricity.
The generator can then apply to the energy commission for
supplemental energy payments to make up the difference between
the market rate for electricity and the final bid price for providing
the electricity. However, the energy commission indicated that
generators have either not completed the required application
process or have withdrawn their applications for supplemental
energy payments; therefore, no payments have been made.
The Lower Cost of Other Renewable Sources of Electricity Has Provided
No Incentive for Utilities to Purchase Electricity Generated From
Solar Sources
As the cost of electricity generated from some types of renewable
resources increases, electricity from other sources that were once
deemed too expensive could become relatively more competitive. The
utilities commission indicated that solar thermal and photovoltaic
technologies have historically been more expensive than other
renewable resources, but economies of scale may drive down
the price of these technologies, as they did with wind. However,
according to the utilities commission, although wind technology
continues to be one of California’s lowest-cost renewable sources of
electricity, several factors have contributed to an increasing price
for electricity generated from wind. These include high worldwide
demand for turbines; high demand for renewable power; and,
as developers look beyond prime wind resources in some parts
of the State, the decreased amount of time generators would
produce electricity.
To comply with the legislation implementing the renewables
portfolio program, investor-owned utilities must solicit bids from
generators to provide electricity from renewable resources and
evaluate those bids using their least-cost, best-fit methodology,
without regard to the type of renewable resource. The intent of
this methodology is to allow an investor-owned utility to select an
electricity provider based on the utility’s specific resource needs as
well as the cost of the project. The least-cost element helps minimize
the impact on utility ratepayers of procuring renewable-source
electricity. The utilities commission, which is responsible for
approving the results of investor-owned utilities’ solicitation
processes, defines best fit as the renewable-source electricity that
best meets the utility’s general capacity and reliability needs.
Solar power generally has not been Confidential bid data provided by the utilities commission show
competitive with other sources of that solar power generally was not competitive with other
renewable energy. renewable sources. In 2005 the average of the lowest bids submitted
to each of the three investor-owned utilities to provide electricity from
California State Auditor Report 2007-119 17
January 2008
a solar power plant was 40 percent more than the average of the
lowest bids for electricity generated from wind. By 2007, however,
the difference had decreased to 19 percent. Further, data provided
by the utilities commission show that in 2004 investor-owned utilities
submitted, through the renewables portfolio program, only one
proposed contract for solar power to the utilities commission for
approval, but from 2005 through July 2007, investor-owned utilities
submitted six proposed contracts for solar power.
Development of Large Solar Power Plants Requires Large Tracts of Land
and Significant New Infrastructure
According to the federal Bureau of Land Management (BLM), large
solar thermal power plants require many acres of land to gather
enough radiant energy. The BLM anticipates that new solar power
plants may require an average of at least 500 acres to produce
100 megawatts of electricity. Additionally, the amount of
sunlight reaching the earth’s surface is affected by the season, time
of day, climate, and air pollution. Information from the National
Renewable Energy Laboratory, which is part of the U.S. Department of
Energy (Energy Department), indicates that the Mojave Desert has as The Mojave Desert has as much as
much as or more potential for the siting of solar power plants than any or more potential for the siting of
other region in the country. However, according to energy commission solar power plants than any other
documents, the transmission infrastructure serving the areas does not region in the country.
exist. The energy commission concluded that the absence of this
infrastructure has been a crucial barrier to the development of
renewable resources such as solar power plants because developers
may be unwilling to assume the cost of building the necessary long
transmission lines in addition to the cost of plant construction.
Supplemental Energy Payments Meant to Encourage the Transition to
Renewable-Energy Sources Have Not Been Awarded
The legislation creating the State’s renewables portfolio program
requires the energy commission to award supplemental energy
payments to assist eligible generators of electricity from renewable
sources when the cost of the electricity they produce exceeds the
market price for electricity (market price referent), as determined
by the utilities commission. The energy commission reported
in March 2007 that $734 million would be available for these
payments. However, the manager of the Renewable Energy Office
(office) at the energy commission told us that as of November 2007
it had not awarded any supplemental energy payments to
generators under the renewables portfolio program.
18 California State Auditor Report 2007-119
January 2008
One reason for the lack of payments is that most bids for contracts
from renewable energy sources such as wind and geothermal
generally have not been higher than the market price referent.
Another reason no payments have been made is that only new or
repowered facilities are eligible for supplemental energy payments;
contracts with preexisting facilities are ineligible. In fact, according
to office staff, it has received only five applications for supplemental
energy payments since the beginning of the renewables portfolio
program. The office staff also stated that only one of those
applications was complete, and that the developer making the
submission subsequently withdrew its application. The office also
indicated that some developers were concerned about submitting
confidential information to the energy commission and therefore
did not provide all of the required information in their applications.
The Removal of Obstacles, Along With the Rising Cost of Natural Gas,
Has Heightened Interest in Developing New Solar Power Plants
Although the energy commission has not approved any applications for
the construction of large solar thermal power plants since 1990,
developers appear to have started viewing solar power as financially
viable. As of October 2007 the BLM had received about 50 applications
As of October 2007 the BLM had to construct large solar power plants. This activity is relatively recent;
received about 50 applications to the earliest of these applications was received in January 2006. The
construct large solar power plants applications consist of both thermal and photovoltaic technologies and,
while the energy commission if all are built, will provide nearly 43,000 megawatts of electricity. The
expects to receive eight applications energy commission expects that it will receive about eight applications
in 2008. for large solar thermal power plants in 2008.
We identified several factors that we believe have spurred this
new interest. First, the cost of natural gas has been rising; as
shown in Figure 6, the average cost has nearly doubled since 2002.
Information from the energy commission shows that the largest fuel
source for generating electricity in California is natural gas. As the
cost of natural gas has risen, the cost of electricity generated from it
has also risen.
Second, recent legislation is intended to make cleaner electricity,
such as solar, preferable for utilities over energy produced from
sources that generate greenhouse gases. In Chapter 598, Statutes of
2006, the Legislature found that as the largest electricity consumer
in the region, California has an obligation to provide clear
guidance on performance standards for procuring electricity. The
legislation requires the utilities commission, in consultation with
the energy commission and the State Air Resources Board, to set
emission performance standards for greenhouse gases to be met by
investor-owned utilities. It also requires the energy commission to
similarly set emission performance standards to be met by publicly
California State Auditor Report 2007-119 19
January 2008
Figure 6
Price of Natural Gas Used for Electric Power Generation in the United States
Since 2002
$12
10
8
6
4
Price per 1,000 cubic feet
of natural gas
2 Trendline
0
2002 2003 2004 2005 2006 2007
ecirP
Source: United States Department of Energy, Energy Information Administration.
owned utilities. The utilities commission adopted standards in
January 2007, and the energy commission adopted standards in
August 2007. Both sets of standards place limits on the amount of
emissions resulting from the generation of electricity purchased by
utilities. The legislation also prohibits utilities from entering into
contracts with generators for five or more years unless the electricity
base load provided under those contracts meets the emission
performance standards.8 The legislation could effectively prevent
utilities from entering into long-term contracts for electricity
with generators that use coal as a fuel source. As a result, as
existing contracts for coal-generated electricity expire, utilities
may need to find replacement sources. Electricity generated from
renewable resources, including solar energy, could therefore be
attractive alternatives.
Third, recently enacted legislation attempts to make it easier
to finance the development of renewable energy. Chapter 685,
Statutes of 2007, which became effective in January 2008,
removes the energy commission’s authority to award supplemental
8 Base-load electricity is electricity generated by a power plant designed and intended to provide
electricity at a rate of at least 60 percent of its total capacity.
20 California State Auditor Report 2007-119
January 2008
energy payments under the renewables portfolio program.
Instead, according to the Senate floor analysis of this legislation,
it authorizes the utilities commission to allow investor-owned
utilities to recover the cost of electricity from renewable sources
that is in excess of market prices by building this cost into electric
rates. This new process is intended to make the income stream to
the generator more dependable and therefore more attractive
to financial institutions that would potentially underwrite the
construction of solar power plants.
Fourth, according to a report published by the Energy Department,
recent advances in technology are allowing solar energy to be
converted into electricity more efficiently. These advances are
intended to support the goal of producing cost-competitive
solar-generated electricity. For example, the Energy Department has
demonstrated a method for converting sunlight to electricity at record
levels using one new type of photovoltaic technology. It has also
identified another new process that will permit the commercial use of
a type of silicon that is less expensive than the type currently used in
photovoltaic cells and could foster rapid, large-scale production. The
National Renewable Energy Laboratory has also set efficiency records
for multilayer photovoltaic cells and states that emerging concepts
promise additional breakthroughs in efficiency and affordability.
Further, the Energy Department has stated that new solar thermal
dish/engine systems have reached unmatched levels of efficiency and
are being designed for low-cost, high-volume production.
The federal government is also encouraging the development of
renewable alternatives; the Energy Department invited 16 developers
to submit full applications for $2 billion in loan guarantees for
clean energy projects from 143 preapplications that use innovative
technologies. Among these projects are two from California.
Moreover, the federal Energy Policy Act of 2005 could help reduce
barriers to building large solar power plants. That legislation seeks
to increase federal purchases of renewable energy and urges the
federal secretary of the interior to approve renewable-energy
projects located on public lands with a generation capacity of at least
10,000 megawatts of electricity over a 10-year period.
The State’s largest power grid Finally, a proposal by the California Independent System Operator
manager cites insufficient (CAISO) is aimed at encouraging the development of transmission
transmission line capacity in infrastructure for renewable resources by spreading the costs
remote areas as a significant barrier among the users of the power grid. The CAISO, the State’s largest
to the development of renewable power grid manager, cites insufficient transmission line capacity in
resources, including solar energy. remote areas as a significant barrier to the development of
renewable resources, including solar energy. According to the
CAISO, significant renewable resources such as wind, geothermal,
and solar energy are not readily accessible to the portion of the
power grid it manages. Under the current process, a developer must
California State Auditor Report 2007-119 21
January 2008
pay for transmission lines that connect a power plant to the power
grid. Because location-constrained renewable resources are in areas
far from the power grid, these transmission lines can be relatively
long and expensive to construct.
In January 2007 the CAISO submitted a proposal to the Federal
Energy Regulatory Commission, which was approved in April 2007.
This proposal for financing and developing transmission
facilities is intended to promote the connection of multiple
location-constrained resources to the CAISO-controlled power
grid. Because generating electricity from renewable sources like
solar energy is typically limited to locations where the resource
exists (such as areas where solar energy is abundant), long
transmission lines may be necessary to reach the remote locations
where they are located. Under the proposal, once a transmission
owner, such as an investor-owned utility, builds a connection
facility, each generator that interconnects would be responsible
for paying its proportional share of the costs of using the line.
However, until the line is fully utilized by generators, all users of
the power grid would pay for the cost of unused portions of the
line. In October 2007 the CAISO submitted procedural language
to implement this new policy, which the Federal Energy Regulatory
Commission conditionally approved in December 2007.
Approvals to Build Large Solar Power Plants Involve Several Entities
The processes of obtaining the approvals necessary to construct a
large solar power plant and transmit the electricity it will generate
are complex. A developer wanting to build a large solar power plant A developer wanting to build a large
generally will follow one of four possible approval tracks. solar power plant generally will
The specific track followed is determined by two attributes of the follow one of four possible approval
project: the type of solar power plant proposed (thermal or tracks, each of which includes land
photovoltaic) and the government agency with jurisdiction over the use review, environmental review,
land on which the new plant will be built. Each of the four approval and review of related infrastructure.
tracks has three principal components: land use review,
environmental review, and review of related infrastructure, such as
transmission lines and interconnection to the power grid.
Regardless of the type of large solar power plant to be built or the
government agency that has jurisdiction over the land, a solar
power plant developer must obtain approvals from several entities.
A developer must also resolve conditions imposed by government
agencies as part of the project’s environmental review component.
Appeals of decisions can delay the project, lead to the imposition of
mitigation measures or alternatives, and in some cases require the
agency to reapprove the project after complying with the California
Environmental Quality Act (CEQA) and a court order from
the appeal.
22 California State Auditor Report 2007-119
January 2008
Developers are planning many new solar power plants in California. As
of October 2007 the energy commission had received two applications
for constructing large solar thermal power plants. Further, developers
have submitted nearly 50 applications for constructing large solar
power plants to the BLM. However, because no applications have
recently gained approval, our ability to analyze the approval process
was limited. The energy commission last approved an application
for a large solar thermal power plant in 1990. Further, one of the
BLM’s program managers indicated that the BLM has not approved
any applications for new large solar power plants on federal land in
California, and in response to our survey, all 58 counties in the State
indicated that they had not approved construction of any large solar
power plants.
Because of the absence of recently approved applications, we reviewed
applicable written procedures established by the approval agencies for
reviewing applications to build new large solar power plants. Our
reviews disclosed no unreasonable impediments in the procedures. We
also reviewed the energy commission’s processing of applications for
Without any recently approved power plants fueled by resources other than solar energy, a system
applications for large solar power operator’s processing of requests to interconnect to its portion of the
plants to review, we could not power grid, and the utilities commission’s processing of applications for
conclude that any one of the transmission lines past the point of interconnection to the power grid.
four approval tracks is more However, without any recently approved applications for large solar
time-consuming or onerous than power plants to review, we could not conclude that any one of the four
the others. approval tracks is more time-consuming or onerous than the others.
Power Plant Approval Can Follow One of Four Tracks
The table shows four possible approval tracks for a new solar power
plant. The first track is for large solar thermal power plants to be built
on nonfederal land. State law assigns exclusive jurisdiction to approve
applications for large thermal power plants, including large solar thermal
power plants, to the energy commission. This process is part of the State’s
goal to protect environmental quality and ensure a reliable and affordable
supply of electricity.
The second track is for large solar thermal power plants to be
constructed on federal land administered by the BLM. According to
BLM policy, applications for commercial solar energy facilities will be
processed as right-of-way authorizations under the Federal Land
Policy and Management Act and the Code of Federal Regulations.
The BLM reviews applications to build on land under its jurisdiction
and, upon approving an application, grants a right-of-way that allows
the developer to use the land for the purpose specified in the
application. To reduce duplication of effort during the environmental
review component of the approval process, the BLM and the
energy commission entered into a memorandum of understanding
California State Auditor Report 2007-119 23
January 2008
in August 2007 that documents the relevant roles, responsibilities,
and procedures each agency will follow when conducting a joint
environmental review.
Table
Approval Tracks for Large Solar Power Plants Included in Our Review
Solar Facility technology
thermal JuriSdiction Photovoltaic JuriSdiction
adminiStered by the
Federal bureau oF land adminiStered by
neceSSary aPProvalS nonFederal management (blm) nonFederal the blm
Land use Local government* BLM Local government BLM
Environmental review† Energy commission BLM and energy Local government BLM‡
commission
Related infrastructure
Power grid interconnection System operator System operator (such System operator (such System operator (such
(such as the California as the CAISO) as the CAISO) as the CAISO)
Independent System
Operator (CAISO))
Install new or upgrade California Public Utilities commission Utilities commission Utilities commission
existing transmission lines§ Utilities Commission
(utilities commission)
Sources: Federal and state regulations, and information obtained from the State Energy Resources Conservation and Development Commission
(energy commission), the CAISO, and the utilities commission.
* The energy commission can override land use decisions made by local governments.
† The environmental review process may include significant involvement from other government agencies.
‡ According to one of its associate district managers, the BLM is in discussion with some California counties to gauge interest in participating in joint
environmental review processes.
§ From the point the power plant connects to the power grid, for investor-owned utilities.
The third track is for large solar photovoltaic power plants to be
built on nonfederal land. State law specifically excludes photovoltaic
power plants from the energy commission’s jurisdiction over large
solar thermal power plants. State law authorizes local governments
to engage in land use planning. Since state law does not require
any state agency to approve those power plants, authority for
approving this type of solar power plant rests with the county or
city in which the project will be built. California has 58 counties and
nearly 480 cities, each with broad discretion in creating land use
plans and reaching land use decisions. Because of this discretion, a
developer may need to obtain different land use approvals to build
a large photovoltaic solar power plant in one location than it would
in another.
The fourth track is for large solar photovoltaic power plants to be
built on BLM-administered land. Similar to the second track, the
BLM reviews applications to build on land under its jurisdiction.
However, the energy commission does not have jurisdiction
24 California State Auditor Report 2007-119
January 2008
over photovoltaic power plants; therefore, unlike the process for
obtaining approval for a large thermal solar power plant, no joint
federal and state environmental review process exists. According
to the associate district manager of the BLM’s California Desert
District, the BLM is currently in discussion with several California
counties that fall within the district’s boundaries to determine their
interest in participating in joint environmental review processes.
Local Land Use Approvals Are Necessary
Regardless of which track a developer uses, no single entity provides all
necessary approvals to begin delivering electricity generated by a large solar
power plant to consumers. Because each county and city has considerable
flexibility in specifying the appropriate use of its land, the building of large
solar power plants within a county or city may require approval of land
use changes. Generally, for new construction on land under county or
city jurisdiction, local officials establish guidelines through general and
specific plans, zoning, and other land use planning mechanisms. Unless
a county or city has already determined that a large solar power plant is
an appropriate use for a specific parcel of land, a developer must apply for
approval from the county or city to use the land for that purpose.
State law requires each county or city to adopt a general plan that specifies
a comprehensive, long-term approach to its physical development. Land
use is one element required in all general plans. This element contains
information on the general distribution, location, and extent of the uses
of the land for housing, business, open space, and other categories of
public and private uses. A developer proposing a use not specified in the
general plan (such as building a large solar power plant) must apply for
an amendment to the plan. The legislative body of each county or city is
responsible for approving any general plan amendments.
According to the Governor’s Office of Planning and Research (Planning
and Research), one unit of which is responsible for, among other things,
coordinating the state level review of environmental documents pursuant
to the CEQA and providing technical assistance on land use planning and
CEQA matters, development must meet not only the broader policies set
forth in the general plan but also the specific requirements of the zoning
ordinance. Planning and Research describes a zoning ordinance as a local
If a developer was unable to obtain law that spells out the immediate, allowable uses for each piece of property
the required change in land use within a community. All counties and certain cities can consider requests
decisions from a county or city and for zoning changes. If a county or city zoning ordinance does not allow the
the project being considered is a building of a large solar power plant, a developer must apply to have the
large solar thermal power plant, the county or city rezone the land to allow it.
energy commission can override
the negative decision by the county In some situations a developer might be unable to obtain the
or city and allow the project to required change in land use decisions from a county or city. If
move forward. the project being considered is a large solar thermal power plant,
California State Auditor Report 2007-119 25
January 2008
the energy commission can override the negative decision by the
county or city and allow the project to move forward. According to
the energy commission’s siting office manager, out of more than 130
applications, the energy commission has overridden local decisions
regarding land use designations in four instances. In contrast, if the
proposed project is a large photovoltaic facility, no state entity has
general jurisdiction. Thus, the local land use decisions would govern
whether such a facility could be developed in the jurisdiction.
If a piece of land is already zoned for a broad purpose (such as
industrial use) that might allow a new solar power plant but does
not specifically describe that use, the developer must apply for a
conditional-use permit from the county or city. According to
Planning and Research, the conditional-use permit is intended to
allow a county or city to consider a special use that could be According to one of its managers,
essential or desirable to a particular community and to provide the energy commission issues a
flexibility within a zoning ordinance. According to its siting office permit in lieu of a local government
manager, the energy commission permit is issued in lieu of a local conditional-use permit, but typically
government conditional-use permit. However, the energy requires compliance with the same
commission typically requires compliance with the same criteria the criteria the local government would
local government would require for a conditional-use permit. require.
Federal land in California is subject to federal land use decisions. For
BLM-administered land, resource management plans established
under federal law define allowable resource uses. Sites associated with
power generation, such as large solar power plants, or transmission
lines not identified in a resource management plan are considered
through the plan amendment process.
Environmental Reviews Under the CEQA and the National Environmental
Protection Act Are Also Necessary
The second component of each of the four approval tracks is
environmental review. Environmental reviews conducted under the
National Environmental Policy Act (NEPA) and the CEQA are an
integral piece of the approval process of building a large solar power
plant. Under the NEPA, a federal government agency acts as the
lead agency, and sometimes acts as a joint lead agency with state
or local government. Under the CEQA, state or local government
entities act as lead agencies. Lead agencies are responsible for
approving projects; for preparing environmental documents; and,
under the CEQA, for preventing significant, avoidable damage to
the environment by requiring the use of alternatives or mitigation
measures that the lead agency determines are feasible.9
9 The energy commission is exempt from the provisions of the CEQA; the secretary of the California
Resources Agency certified the energy commission’s process as functionally equivalent to a
review under the CEQA.
26 California State Auditor Report 2007-119
January 2008
According to The Community Guide to the California Environmental
Quality Act, published by the Planning and Conservation League
Foundation, the CEQA is California’s premier environmental
law. According to Planning and Research, it was enacted by
the Legislature as a system of checks and balances for land use
development and management decisions in the State. The CEQA
defines a project as an activity that may cause either a direct physical
change or a reasonably foreseeable indirect physical change in the
environment. Therefore, the CEQA broadly defines the word project.
Because the construction of large solar power plants would change
the environment physically, such projects fall under the authority of
the CEQA.
Recognizing that various governmental agencies have expertise in and
jurisdiction over specific subjects, a lead agency must consult with
other governmental agencies as part of the environmental review. For
example, if a project is expected to affect endangered or threatened
wildlife or will be in close proximity to a stream, the lead agency will
involve the California Department of Fish and Game (Fish and Game)
because of its responsibilities related to endangered and protected
species and their habitat. In this situation Fish and Game is a
responsible agency under CEQA because the project will need a
permit from Fish and Game before it can proceed. Even if Fish
and Game’s approval is not needed, because Fish and
Game is the State’s trustee agency for fish and wildlife
resources, the lead agency must still consult with Fish
Types of Environmental Analysis Prepared and Game as a trustee agency. Because the
by State and Local Agencies Under the characteristics of projects vary, the government
California Environmental Quality Act
agencies that provide approval will also vary. For
example, depending upon the amount of air
Environmental Impact Report: A detailed written
emissions generated by the construction of a
document prepared under the California Environmental
proposed solar power plant, a local air quality
Quality Act (CEQA) describing and analyzing the significant
environmental effects of a project and discussing ways to management district may need to give its approval.
mitigate or avoid the effects. Responsible and trustee agencies will rely upon the
lead agency’s environmental review to address
Negative Declaration: A written document briefly
their concerns.
describing the reasons that a proposed project not exempt
from the CEQA will not have a significant effect on the
Once a lead agency determines that the project
environment and therefore does not require the preparation
of an environmental impact report. it is reviewing is subject to CEQA, it typically
conducts an initial study to determine whether the
Mitigated Negative Declaration: A negative declaration
proposed project may have a significant adverse
that can be prepared when the initial study has identified
effect on the environment. Prior to making this
potentially significant environmental effects, but changes
determination the lead agency must consult
to the project before the proposed negative declaration
with all responsible and trustee public agencies
and initial study are released would mitigate those effects
to the point where there is clearly no significant effect on and seek their comments on the environmental
the environment. consequences of the proposed project. Based on
the results of this initial study and the comments
Source: California Code of Regulations, Title 14.
it has received from the responsible and trustee
public agencies, the lead agency can elect to
California State Auditor Report 2007-119 27
January 2008
prepare a negative declaration, a mitigated negative declaration, or
an environmental impact report (EIR), as described in the text box.
Planning and Research stated that the EIR records the scope of the
developer’s proposal and analyzes its known environmental effects.
The EIR must identify, among other things, any significant effects
on the environment, alternatives to the project, and proposed
measures to minimize the significant effects. The EIR contains
many sections that document each element of the environmental
review. For example, the EIR should identify required permits and
other approvals required to implement a project. Agency and public
comments and recommendations are also included in the EIR.
Before the lead agency can approve any project, including a solar
energy project, the lead agency must circulate its environmental
review document for public review and comment. For a negative
declaration or a mitigated negative declaration prepared for a
proposed solar power project, the public review and comment
period will likely be 30 days. For an EIR prepared for a proposed
solar power project, the public review period will likely be 45 days.
In the case of an EIR, the lead agency must prepare responses to all
public comments received on the EIR, and include the comments
and responses in the “final” EIR.
After the public review and comment period the lead agency must
adopt the negative declaration and mitigated negative declaration,
or certify that the final EIR has been completed in compliance with
CEQA and adopt findings demonstrating that all feasible mitigation
measures and alternatives have been adopted before the lead agency
can approve the proposed project.
Steps have been taken to require the CEQA review to be completed
in a timely manner, but some actions are exempt from these
requirements. The Permit Streamlining Act (act) added timelines
and deadlines to projects under the CEQA to expedite government
review, but not all projects are subject to the provisions of the
act. For example, the energy commission’s process is exempt from
the provisions of the act, and according to materials published
by Planning and Research, legislative actions, such as zoning
amendments and ministerial actions, such as the issuance of some
building permits, are also exempt from the act.
Appeals of decisions under the CEQA can delay a project, lead to the
imposition of mitigation measures or alternatives, and in some cases
require the lead agency to reapprove the project after complying
with the CEQA and a court order from the appeal. According to the
California Environmental Law and Land Use Practice, a legal treatise
published by Matthew Bender and Company, public participation
in the CEQA process has been instrumental in ensuring that
government agencies comply with the law. It also stated that the
28 California State Auditor Report 2007-119
January 2008
opportunity for the public to participate in the process required
by the CEQA is so important that one court held that persons
submitting comments as part of the public review are subject to
absolute immunity from tort liability, regardless of their motives or
the content of their comments.
In addition to meeting environmental requirements, an applicant
may need to have its plans reviewed by a local government to
obtain necessary permits for tasks such as building, grading, or
erosion control. According to the deputy district manager of
resources for the BLM’s California Desert District, although the
BLM does not require applicants to obtain a building permit
from the applicable local government, it does require a project’s
development plan to comply with all local and state laws, including
applicable building codes.
Under state law, the certification of solar thermal power plants by
the energy commission is in lieu of any other permit, certificate, or
similar document (such as an EIR required under the CEQA) required
by any state, local, or regional agency or federal agency to the extent
permitted by federal law. However, the secretary of the California
Resources Agency has certified the energy commission’s process as
functionally equivalent to a review under the CEQA. Therefore, the
State law requires the energy energy commission may use staff assessments that include a review of
commission to determine whether environmental factors, among others, in place of documents required
a project conforms with applicable by the CEQA. Further, state law requires the energy commission to
air and water quality standards determine whether a project conforms with applicable air and water
and with applicable local, regional, quality standards and with applicable local, regional, state, and federal
state, and federal standards, standards, ordinances, or laws. As such, the energy commission,
ordinances, or laws. according to its siting office manager, requires developers to apply for
the necessary land use and other approvals themselves if they are not in
conformance with local land use requirements.
According to the U.S. Geological Survey, the NEPA is the
cornerstone of our nation’s environmental law and was enacted
to ensure that information about the environmental effects of any
federal or federally funded action is available to public officials and
citizens before decisions are made or actions taken. The NEPA
includes procedural requirements that apply to all federal agencies
and regulate decisions for actions, including financing, assisting,
conducting, or approving projects or programs; agency rules,
regulations, plans, policies, or procedures; and legislative proposals.
As a federal agency, the BLM will conduct an analysis in accordance
with the NEPA before it grants a developer a right-of-way.
The CEQA and NEPA have many similarities, but they also differ
in several respects. The primary purpose of both laws is to require
agencies to consider the environmental impacts of projects during
the planning and review process. Additionally, both laws create a
California State Auditor Report 2007-119 29
January 2008
process that calls for public participation. One notable difference
pertains to the obligations that these laws impose on agencies
to mitigate potential adverse environmental impacts caused by
a project. The NEPA requires agencies drafting environmental
documents to provide a detailed statement regarding adverse
impacts of the project that cannot be avoided as well as a discussion
of measures to mitigate adverse environmental impacts. However,
the NEPA does not require a complete plan for mitigating those
adverse impacts, nor does it require that those mitigation measures
be implemented. In contrast, under the CEQA, if the environmental
impact of a project is declared to be “significant,” the lead agency
is required to determine that sufficient measures have been taken
to mitigate the impact where feasible. If the agency finds that such
measures are not feasible, it must adopt a statement of overriding
consideration, which states the specific reasons why the project’s
benefit outweighs those effects that have not been mitigated. Thus,
mitigating the adverse environmental impacts of a proposed project
plays a more significant role under the CEQA.
Related Infrastructure Requires Additional Approvals
Besides land use and environmental reviews, an interconnection
customer, such as a developer, must obtain approvals from other
entities for infrastructure related to a new solar power plant. For
instance, an interconnection customer must also obtain approval
from a system operator to interconnect its power plant to the power
grid. As described in the Introduction, the State relies on a complex
power grid to transmit electricity from power plants to consumers.
A key participant in this interconnection process is the system
operator. Although several of the State’s publicly owned utilities
manage portions of the power grid, the CAISO is the largest system
operator, controlling 75 percent of the grid.
To standardize the interconnection of a power plant to its portion of
the power grid, the CAISO adopted a process prescribed by the
Federal Energy Regulatory Commission. Under this process,
interconnection customers must submit interconnection requests to
the CAISO. The CAISO enters the requests into a queue consisting of
earlier filed requests. Part of the CAISO’s mission is to operate the
power grid reliably and efficiently and to promote infrastructure
development. Therefore, before approving a request, the CAISO Before the CAISO approves a
conducts or directs a transmission owner to conduct studies to ensure developer’s request to connect a
that the power grid can reliably handle the additional electricity. These new power plant to the power grid,
studies are conducted based on the interconnection customer’s order studies are conducted to ensure
in the queue. Placement in the queue also determines which that the power grid can reliably
interconnection customer is responsible for paying for the facilities handle the additional electricity.
necessary to accommodate the request. According to the CAISO’s
director of state affairs, if an interconnection customer withdraws its
30 California State Auditor Report 2007-119
January 2008
application, it may be necessary to restudy the remaining requests to
determine who must pay for upgrades and in what order. The CAISO
and the transmission owner then draft a standardized connection
agreement and related appendices and offer it to the interconnection
customer. All three entities negotiate aspects of the appendices. The
transmission owner and the CAISO then provide a final agreement to
the interconnection customer for execution.
The Federal Energy Regulatory Commission (regulatory
commission) held a conference in December 2007 to discuss
challenges in managing interconnection queues, related in part
to an increase in applications for power plants using renewable
resources. In response to the conference and a request from the
regulatory commission, the CAISO initiated a stakeholder process
to evaluate reforms to its current interconnection procedures.
The CAISO anticipates presenting its proposal to the regulatory
commission in March 2008.
We determined that two public utilities that manage their portions of
the power grid—the Sacramento Municipal Utility District and the
Imperial Irrigation District—follow procedures similar to the federally
established process used by the CAISO. In addition, according to
its assistant chief operating officer, the Los Angeles Department of
Water and Power (Los Angeles power department) has a procedure
comparable to the CAISO’s federally approved process, but it has
yet to be approved by the Los Angeles power department’s board
of commissioners and the Los Angeles City Council. Conversely,
according to the manager of its electrical engineering department,
the Turlock Irrigation District does not use a process comparable
to the federal process. Of these four public utilities, the Imperial
Irrigation District and the Los Angeles power department maintain
interconnection queues that contained only 32 requests as of
October 2007. The Turlock Irrigation District has not received any
requests to connect to its power grid, and the Sacramento Municipal
Utility District has not received an interconnection request since it
adopted the federal process. In contrast, the CAISO had 206 active
requests in its queue as of September 2007.
When new transmission lines Substations and transmission lines are other types of infrastructure
or upgrades to the power grid related to solar power plants. When new transmission lines
are necessary to transmit the or upgrades to the power grid are necessary to transmit the
additional power produced by a additional power produced by a new power plant, investor-owned
new power plant, investor-owned utilities—which own transmission lines—must obtain approval
utilities must obtain approval from from the utilities commission. Conversely, publicly owned utilities
the utilities commission. obtain approval to build or operate their own transmission lines from
their elected boards or commission. If a proposed large solar power
plant requires a new or upgraded transmission line of 200 kilovolts or
more, the investor-owned utility must apply for and obtain a certificate
of public convenience and necessity (certificate) from the utilities
California State Auditor Report 2007-119 31
January 2008
commission.10 According to the utilities commission, the certificate
may be granted if the line will provide increased reliability, is justified
on economic grounds such as providing access to lower cost power, or
facilitates goals related to renewable power. The Public Utilities Code
states that an application for transmission lines is deemed necessary if
the utilities commission determines that the project would help meet
the goals of the renewables portfolio program.
In July 2006 the executive director of the utilities commission
established directives to streamline the approval of transmission
facilities. An investor-owned utility seeking a streamlined review
must notify the director of the utilities commission’s Energy Division
in writing at least six months before filing an application. These
notifications allow the investor-owned utility and the utilities
commission to identify potential deficiencies before the investor-owned
utility files an application with the utilities commission. Within 30 days
of receiving an application, the utilities commission determines whether
the application is complete or deficient. If an application is deficient,
the utilities commission notifies the investor-owned utility in writing,
identifying the deficiencies. If an application is complete, the utilities
commission begins the process of meeting the requirements of the
CEQA by deciding which environmental document to prepare. If the
project crosses federal land, it is also subject to environmental review
under the NEPA. According to the utilities commission it generally
enters into a memorandum of understanding with the relevant federal
agency (usually the BLM or the U.S. Forest Service) to collaboratively
conduct a joint environmental process.
For the most part, developers and the investor-owned utilities can
initiate the process of obtaining from government agencies the
necessary approvals concurrently, or in any order. In certain instances,
however, a developer needs to secure approvals in a particular
order. For example, a developer must obtain an approved system
impact study from a system operator before the energy commission
can approve the application. Further, although state law allows
the submission of applications to the utilities commission, which
has jurisdiction over investor-owned utilities—concurrently with
applications to other agencies, such as a power plant being considered
by the energy commission, it forbids the utilities commission
from approving such a project until the application for the power
plant receives approval from the energy commission.
10 For any power line between 50 and 200 kilovolts, the utilities commission issues a permit to construct.
32 California State Auditor Report 2007-119
January 2008
Applications We Reviewed Went Through Processes Similar to Those
Required for Some Types of Solar Power Plants
Although the absence of approved applications for large solar
power plants constrained the type of analysis we could perform, we
assessed other applications that were subject to the same approval
processes. As we described earlier, although every application
is a reflection of the unique characteristics of the project, the
relevant agency must conduct an environmental review that meets
the requirements of the CEQA, the NEPA, or both. In addition,
developers generally must obtain permission to connect their
generating facilities to the power grid. Also, if an investor-owned
utility needs new or upgraded transmission lines, the utilities
commission must review, and if appropriate, approve those lines.
To estimate how long the applications for a new large solar power
plant might take, we identified comparable projects and obtained
data on timelines and the obstacles some projects experienced.
Because the agencies managing these processes depend on data from
the applicant and must consider the input of other agencies, they are
not always able to meet their established timelines. However, because
developers have the ability to obtain some approvals concurrently, a
delay in obtaining one may not delay obtaining others.
Approvals for Power Plants Can Be Delayed Because of the Need for
Additional Project Data or Design Changes
To estimate the amount of time it could take a developer to obtain
approval for building a large solar power plant, we reviewed
two applications the energy commission approved in 1989 and 1990
for large solar thermal power plants and 15 more recent applications for
nonsolar power plants that use the same approval process as that
required by the energy commission for solar thermal power plants.
Although the energy commission has a timeline for processing
applications for all thermal power plants regardless of the type, we
Unique project specifications, unique found that unique project specifications, unique environmental
environmental characteristics, and characteristics, and project changes can affect the ability of the
project changes affected the ability energy commission to meet this timeline. The delays we observed
of the energy commission to meet its in the approval process and the reasons for them are consistent with
timeline for processing applications. the results presented in our August 2001 audit report titled
California Energy Commission: Although External Factors Have
Caused Delays in Its Approval of Sites, Its Application Process Is
Reasonable.11 As in our earlier review, we found that the delays in the
process for the two applications we reviewed in more detail have
11 In our August 2001 report, we provide more details about the process the energy commission
uses to consider applications for new power plants.
California State Auditor Report 2007-119 33
January 2008
been caused by factors outside the energy commission’s control,
such as developers failing to provide required information in a
timely manner or making changes to the site or design.
The energy commission processed the two solar power plant
applications within the established one-year timeline but took longer to
process more recent applications for nonsolar power plants. Processed
from 1988 through 1990, the two solar projects were related to the Solar
Electric Generating System and are the most recent applications for
solar thermal power plants the energy commission approved. The Solar
Electric Generating System projects are solar trough systems and also
use natural gas-fired heaters to provide supplementary power during
inclement weather, evenings, and winter months.
Because the energy commission approved these two solar applications
more than 17 years ago, and it uses the same process for approving
applications for both large solar and nonsolar thermal power plants, we
reviewed 15 applications for large nonsolar thermal power plants the
energy commission approved from 2002 through 2006. Our review
revealed that for all 15 applications, the energy commission took longer
than the 365-day timeline. On average, it took 674 days to approve
them. The longest processing time was for a natural gas-fired power The energy commission took, on
plant located in Blythe, which exceeded the energy commission’s average, 674 days to approve the
365-day timeline by 881 days, or nearly two and one-half years. 15 applications we reviewed.
The difference between the processing time of the two older
applications and the 15 more recent ones can be partially explained
by similarities of the two applications to earlier plants. The two older
projects were similar in design and location to earlier power plants
built by the same developer. On the other hand, a major source
of delay in approving the application for the project in Blythe was
the failure of the developer to provide the energy commission
with complete and timely project data. For example, the developer
did not provide an interconnection study when it was required.
The study is required to determine how the project will affect the
electric transmission system. The energy commission’s approval
timeline requires the interconnection study within 100 days after
the application is deemed complete, but the developer had still not
provided the study more than 600 days after the scheduled date.
Changes in the design or location of the proposed power plant can
also slow the approval process. One example from the applications
we reviewed is the San Francisco Electric Reliability Project. The
energy commission needed 895 days to approve this project, 530 days
longer than its 365-day timeline. The energy commission received
the original application for that project on March 18, 2004, and
determined that it was complete on April 21, 2004. However, on
November 4, 2004, the developer requested that the application be
put on hold to assess an alternate site. It then submitted an amended
34 California State Auditor Report 2007-119
January 2008
application on March 25, 2005, that entailed a change to a new
site a quarter mile away. The application was further amended on
November 18, 2005, to incorporate a revised storm-water drainage
plan. Finally, the energy commission received a third amendment
to the application on December 20, 2005, to address a change in
the water supply source and a new water pipeline route. These
design changes resulted in several rounds of public notices, their
corresponding waiting periods, and responses.
The energy commission has stated that the process for approving
applications for solar thermal power plants is the same as that for
natural gas-fired plants. It also stated, however, that there may be
significant differences between the applications because of their
different plant locations, transmission line locations, amounts of
land required, and amounts of pollution produced. For example,
according to the energy commission, one obstacle in the approval
process for a natural gas-fired power plant is the pollution it can
produce. In contrast, solar thermal power plants do not face
that obstacle because they generate significantly lower levels of
emissions when compared to power plants that use fossil fuel.
However, some factors affecting natural gas-fired thermal power
plants, such as facility design and site-specific characteristics, may
also cause delays in approvals of new large solar projects.
Transmission Line Projects Can Face Significant Opposition From Owners
of the Land They Cross
Resources for renewable energy are often located in remote areas,
far from the consumers of the energy they will produce. To transmit
energy from a remote power plant, new or upgraded transmission lines
may be necessary. However, affected parties such as public agencies can
oppose the project, resulting in extensions to the utilities commission’s
12-month review process for approving transmission lines.
Since 2004 the utilities commission has approved seven
applications for transmission projects for investor-owned utilities.
We evaluated three applications that were for transmission lines.
From the date the utilities From the date the utilities commission deemed the applications
commission deemed the complete to the date it made its final decisions, the process took an
applications complete to the date it average of 552 days. While two of the three transmission line
made its final decisions, the process applications were for projects related to electricity from renewable
took an average of 552 days. sources, none were for solar projects. Although the application
processes are the same for transmission projects for electricity
generated from renewable and nonrenewable sources, the utilities
commission took an average of 105 days longer to process the
applications for transmission lines related to renewable energy than
it did for transmission lines related to nonrenewable energy.
California State Auditor Report 2007-119 35
January 2008
Because of the limited number of applications available for our
review, and because each transmission project is unique, we did
not draw conclusions as to why the approval of transmission lines
related to renewable energy took longer. However, we reviewed
the transmission line project with the longest review period—a
transmission line related to renewable energy—and observed that
delays were in part the result of a federal agency not completing its
review within the utility commission’s time frame and opposition
from a jurisdiction through which the transmission lines passed. In
total, approval of the project took 694 days. Approval was slowed by
the U.S. Forest Service’s review of the proposed route through the
Angeles National Forest. Because of large project caseloads and
the need for a complete environmental review, the U.S. Forest Service
was unable to meet the deadlines set by the utilities commission.
In addition, the city of Santa Clarita proposed an alternative route
that did not cross the city or the Santa Clarita Valley, which required
additional consideration by the utilities commission and delayed the
release of the environmental impact report.
System Operators Are Responsible for Approving Interconnections to the
Power Grid
Since the CAISO began processing requests to interconnect to
the power grid, the average time necessary to obtain approval
has exceeded its timeline by about six months. According to its
director of state affairs, the CAISO formally took over management
of the interconnection process in May 2006, when the Federal
Energy Regulatory Commission approved its large-generator
interconnection procedure. The director of state affairs also stated
that before then, investor-owned utilities were responsible for
negotiating agreements with power plant operators to connect
power plants to the power grid.
Based on timelines in the CAISO’s documentation and discussions
with the agency, we determined that if an interconnection request
encounters no delays, it should take roughly two years to complete. To
evaluate this process, we examined the 10 agreements for new power
plants finalized between the CAISO, developers, and investor-owned We determined that 10 interconnection
utilities since May 2006 and determined that the agreements took an agreements finalized since May 2006
average of about two and one-half years to complete. However, because took an average of about two and
it has yet to manage an interconnection request from start to finish, it one-half years to complete, instead of
is not yet clear how long the CAISO will take. As a result, it is also the two years CAISO documentation
unclear what effect the agency’s administration of the interconnection indicates it should take.
process will have on a project’s ability to start generating electricity.
Previously, each investor-owned utility maintained its own
interconnection queue. These interconnection requests were
consolidated by CAISO into a single queue, and it subsequently took
36 California State Auditor Report 2007-119
January 2008
over the interconnection process. It should be noted that as of
September 2007 the CAISO had 206 active requests in its
interconnection queue.
Concurrent Applications Can Reduce the Time Necessary for Approval
Our analysis of each of the approval processes for a large solar power
plant provides not only an indication of how long each process
might take but also how long all processes together might take.
As previously described, each approval process varies in length,
depending on factors unique to each application. Although the
average amount of time necessary to obtain each of the approvals we
identified exceeded the respective agency’s timelines, applications for
solar power may differ significantly from those we reviewed, and no
applications for large solar power plants have been recently approved.
Further, because some of the required approvals may be obtained
concurrently, a delay in obtaining one approval may not delay
obtaining others. However, as indicated in Figure 7, even with an
overlap of the processes, it could take about 39 months to obtain
approvals from the energy commission, the CAISO, and the
utilities commission for a single solar power plant and its related
transmission lines.
Each of the approval processes we reviewed has a distinct
role. Further, the protections provided by each process exist to
accomplish certain goals. For instance, the energy commission’s
process for approving new power plants is a part of the State’s goal
to protect environmental quality, as well as to ensure a reliable,
affordable, diverse, safe, and environmentally acceptable supply of
electricity. Part of the mission of the utilities commission, which
issues certificates of public convenience and necessity for new
and upgraded transmission lines for investor-owned utilities,
is to protect consumers by ensuring the provision of safe and
reliable utility infrastructure at a reasonable cost. The mission
of the CAISO, which reviews requests to interconnect to the
power grid, includes ensuring that the power grid is operated
reliably and efficiently. Local governments’ general plan and
zoning requirements provide cities and counties with flexibility in
specifying the appropriate use of their land. Government agency
fulfillment of environmental requirements is intended to ensure
that the environmental impacts of projects are considered, and
more specifically, the Legislature enacted the CEQA as a system of
checks and balances for land use development and management
decisions in California. But without actual approved applications
for large solar power plants and their related transmission lines to
California State Auditor Report 2007-119 37
January 2008
examine, we did not determine if the costs of the approval processes
used to help meet these goals outweigh the benefits they provide,
and what aspects of the processes might be unnecessary.
Figure 7
Number of Months Needed to Approve Applications Related to New Power Plants
Time allowed per timelines
Actual time used to approve
projects reviewed by the
Bureau of State Audits
System impact study due*
Interconnection of power plant to the California power grid
31 months
(California Independent System Operator)
Large thermal power plant
(State Energy Resources Conservation 22 months
and Development Commission)
Transmission lines
(California Public Utilities Commission)† 18 months
0 6 12 18 24 30 36 42 48
Month
Sources: Information provided by the California Independent System Operator (CAISO), the State Energy Resources Conservation and Development
Commission (energy commission), and the California Public Utilities Commission (utilities commission).
* Both the CAISO and the energy commission require the completion of a system impact study as part of their approval processes. For purposes of this
graphic, we aligned the approval processes at the point when each agency’s timeline shows a completed system impact study. The CAISO’s timeline
shows this study occurring about a year after the start of its approval process. The energy commission’s timeline shows this study occurring at 100 days.
† An application for a certificate of public convenience and necessity from the utilities commission may be initiated concurrently with other approvals.
However, the utilities commission cannot issue this certificate until the developer obtains approval for the power plant from the energy commission.
Because of the absence of a more detailed requirement defining how the two timelines relate to each other, we placed the midpoint of the utilities
commission’s timeline at the end of the energy commission’s timeline to indicate how the two might overlap. Further, according to staff of the CAISO,
the energy commission, and the utilities commission, a power plant can begin providing power at a reduced capacity over the existing infrastructure
until the necessary upgrades to transmit power at full capacity are completed.
38 California State Auditor Report 2007-119
January 2008
We conducted this review under the authority vested in the California State Auditor by Section 8543
et seq. of the California Government Code and according to generally accepted government auditing
standards. We limited our review to those areas specified in the audit scope section of the report.
Respectfully submitted,
ELAINE M. HOWLE
State Auditor
Date: January 24, 2008
Staff: Dale A. Carlson, MPA, CGFM, Project Manager
Jonnathon D. Kline
Aaron Fellner
Crystal Labarinto
Richard J. Lewis, MBA
For questions regarding the contents of this report, please contact
Margarita Fernández, Chief of Public Affairs, at (916) 445-0255.
California State Auditor Report 2007-119 39
January 2008
(Agency response provided as text only.)
California Energy Commission
1516 Ninth Street
Sacramento, CA 95814-5512
January 10, 2008
Elaine M. Howle*
State Auditor
Bureau of State Audits
555 Capitol Mall, Suite 300
Sacramento, CA 95814
Dear Ms. Howle:
The California Energy Commission appreciates the opportunity to provide comments on the draft report
titled, “Solar Energy: As the Cost of This Resource Becomes More Competitive With Other Renewable
Resources, Applications to Construct New Power Plants Should Increase.”
First, we would like to express appreciation for the constructive and cooperative approach taken by your
staff in the many meetings with Energy Commission staff. We believe this facilitated an effective dialogue
and exchange of information between our two staffs. Second, we would like to offer comments that
provide additional contextual information we believe will help the Legislature and other readers of your
report better understand power plant and transmission permitting in California, including the permitting
of solar facilities. We understand that some of these comments may be beyond the scope of the audit, but
nonetheless believe they are relevant to the issues addressed in the report. We recognize the importance of
ensuring timely siting of solar and other renewable power plant projects in meeting the state’s Renewable
Portfolio Standard.
We think it is important that you identify the 15 projects the Energy Commission sited from 2002 to 2006 1
that were reviewed as part of the audit and the basis for selecting this group of facilities. We note that in
the prior audit performed by the Bureau of Audits on the Energy Commission’s siting program in 2001 that
you supplied a table showing the projects included in the audit. This information is critical to understanding
the reasons for the amount of time needed to process these 15 projects and in identifying the other
circumstances that resulted in delay in the project schedules.
We agree with your statement in the audit that “factors outside of the energy commission’s control, such 2
as developers failing to provide required information in a timely manner or making changes to the site or
design” are the primary causes of delays in project schedules. It is important that the Energy Commission be
in a position to explain, if asked, why the average time needed to process these 15 applications exceeded
12 months. As a point of reference, in the prior audit of our siting process the State Auditor found that “the
average approval time for applications over the past 11 years was 14 months.“ The 2001 audit also found that
“the energy commission is able to approve projects quicker than other permitting processes in California
because it combines activities that are performed consecutively under other processes.” We believe this
statement is still true.
* California State Auditor’s comments appear on page 41.
40 California State Auditor Report 2007-119
January 2008
Ms. Elaine Howle
Page 2
The electricity industry has undergone major changes between 2001 when the first audit was conducted
and today, which has had an impact on the time taken to process the applications. Prior to 2001, the great
majority of power plants were constructed by utilities to serve their customers or were cogeneration projects
with standard offer contracts. After the 2000-2001 energy crisis, the majority of power plans are owned and
operated by Merchant Generators who sell electricity via power purchase contracts. Financial institutions have
generally declined to finance a project that lacks a power purchase contract. Consequently, project developers
without a contract have often not vigorously pursued trying to obtain a license/approval in 12 months after
filing their applications, since the project was not going to proceed to construction without a contract. As a
result, the Commission’s requests for information from project developers frequently languished since there
was no sense of urgency on the part of the applicant. Despite this, between 2001 and today, 63 projects
totaling 23,946 megawatts (MW) of new power plants have been approved by the Energy Commission. Of that,
13 projects totalling 7,240 MW has not been constructed due to lack of power purchase contracts.
The audit notes that of the 15 projects reviewed, Blythe II took the longest to review, 1246 days. While
perhaps outside the scope of the audit, we believe it is informative to mention the fact that Blythe I, a nearly
identical project previously approved by the Energy Commission and adjacent to Blythe II, was certified in
364 days. The difference in review time between the two projects was basically the result of the Blythe II
applicant not having a clear transmission path over which to deliver their electricity to the Southern
California load centers. It took nearly two years, not a few months, for the applicant to submit an approved
transmission interconnection study. While we do not object to including Blythe II in your survey, we believe
everyone who reads the audit report needs to understand that a few projects with siting issues outside of
the control of the Energy Commission can significantly skew the average time it takes to process a power
plant application. A more representative number may have been the median review time for the 15 projects,
3 versus an average, given the unique circumstances of a small number of projects like Blythe II.
Finally, we would note that siting major energy infrastructure in California, whether power plants or
transmission lines, is complex and difficult, as your audit notes. To do so in 12 months is a significant
accomplishment, particularly where there is often significant local opposition to projects, and because
the high value we place on protecting public health and environmental quality often requires developing
mitigation measures beyond those proposed by project proponents. The Energy Commission remains
committed to working with project applicants, interested governmental agencies, other stakeholders, and
the public to ensure that applications are processed in as timely a manner as feasible while at the same time
ensuring an open and transparent licensing process.
Thank you again for the opportunity to provide comments on the audit report. Please contact Terrence O’Brien,
Deputy Director Energy Facilities Siting Division, at 916 654-3933 if you have any questions.
Sincerely
(Signed by: Melissa Jones)
MELISSA JONES
Executive Director
California State Auditor Report 2007-119 41
January 2008
Comments
CAlIfoRnIA StAtE AudItoR’S CommEntS on thE
RESponSE fRom thE StAtE EnERgy RESouRCES
ConSERvAtIon And dEvElopmEnt CommISSIon
To provide clarity and perspective, we are commenting on the
response to our audit report from the State Energy Resources
Conservation and Development Commission (energy commission).
The numbers below correspond with the numbers we have placed
in the margin of the energy commission’s response.
We do not believe that a table identifying the 15 nonsolar projects we 1
reviewed is necessary, as none are solar projects, which are the focus
of the audit; we provided the information regarding large thermal
power plants using nonsolar fuels only for comparative purposes.
The energy commission’s statement is overly broad. On page 32 we 2
noted several factors that caused delays in approving the two
applications we reviewed in more detail. Because the number
of applications we reviewed was small, we did not conclude, as
the energy commission asserts, that these factors generally are the
primary causes of delays in project schedules. We revised the text
on page 32 to more clearly limit the extent of our conclusion from
this review.
The average number of days necessary to approve the 15 projects we 3
reviewed and the median are very similar—674 days for the average
and 664 days for the median. Because there is little difference
between these two measures, we believe our use of the average
is appropriate.
42 California State Auditor Report 2007-119
January 2008
Blank page inserted for reproduction purposes only.
California State Auditor Report 2007-119 43
January 2008
(Agency response provided as text only.)
Public Utilities Commission
505 Van Ness Avenue
San Francisco, CA 94102-3298
January 10, 2008
Elaine M. Howle*
State Auditor
Bureau of State Audits
555 Capitol Mall, Suite 300
Sacramento, CA 95814
Re: CPUC Comments on Solar Energy Audit
Dear Ms. Howle:
Thank you for the opportunity to respond to the draft audit on Solar Energy. We found the audit report to
be thorough and well written, and appreciate the inclusive process by which you carried out the audit. As
the audit report makes no recommendations, our response, below, is limited to: (1) providing information on
additional processes currently under way which may facilitate the interconnection of new solar (and other
renewable) projects to the grid, and which the Bureau may wish to consider referencing in the audit; and
(2) suggesting certain clarifying information.
ADDITIONAL INFORMATION
1. Renewable Energy Transmission Initiative (RETI) 1
The Renewable Energy Transmission Initiative (RETI) was launched to address the long-run challenge
of developing California’s renewable resources and transmission infrastructure in the most timely and
cost-effective way. Nearly all of the bids into the IOUs’ 2007 RPS solicitations were for “new steel in the
ground.” While the number of contracts signed and approved by the CPUC and the growing participation in
RPS solicitations indicate that the RPS procurement mechanism is working, many projects require upgrades
to the transmission network in order to come online.
Proactive renewable transmission planning requires “big picture” judgment and coordination between
transmission development and resource/procurement planning. RETI thus brings together the CPUC,
Energy Commission, California ISO, IOUs, municipal utilities and other stakeholders in a three-phased
planning process.
Phase 1 of RETI consists of a thorough economic evaluation of the state’s developable renewable potential
and an identification of those areas - Competitive Renewable Energy Zones (CREZs) - that hold the greatest
potential for cost-effective renewable development. These CREZs will be ranked according to their value
to the state, and Phase 2 will develop conceptual transmission plans to access the highest-ranked CREZs.
Stakeholder involvement early in these processes will, among other things, help to refine a thorough
cost-effectiveness analysis and identify “show-stoppers” and hurdles with regards to project and transmission
* California State Auditor’s comments begin on page 47.
44 California State Auditor Report 2007-119
January 2008
Elaine M. Howle
January 10, 2008
Page 2
siting and permitting. Phase 3 will involve detailed analysis of specific transmission plans, the ultimate
outcome being the filing of one or more Certificates of Public Convenience and Necessity at the CPUC for
permission to construct the final transmission project(s).
RETI was launched on September 20, 2007 with the first meetings of the RETI Stakeholder Steering
Committee and Plenary Stakeholder Group. More information about RETI, including presentations from the
September 20 meeting and a Mission Statement detailing RETI’s process and administrative structure, is
available on the RETI website, http://www.energy.ca.gov/reti/index.html.
2 2. Interconnection Queue Reform
At the prompting of CPUC staff, the California ISO, the CPUC and other stakeholders are collaborating on
a proposal for FERC consideration that would allow the ISO to reform its Large Generator Interconnection
Protocols (LGIP), and potentially expedite the interconnection of thousands of MW of renewable capacity.
Details about the proposal are available in presentations prepared for a FERC technical conference and a
Joint Agency Energy Action Plan Meeting in December 2007. In short, the proposal aims to address many
of the current LGIP problems by allowing the ISO to geographically cluster current and future projects in
the queue and study joint transmission solutions for those clusters; to weed out speculative projects by
requiring a more stringent showing of project viability; to prioritize interconnection requests based on RPS
goals, procurement milestones and transmission cost-effectiveness; and to assign cost responsibility to
generators on a pro rata basis.
The ISO has established a schedule for stakeholder input into the reform proposal and expects to submit the
final proposal to FERC this coming March. LGIP reform is critical to meeting California’s RPS goals, and the CPUC
looks forward to continued collaboration on this effort.
CLARIFYING INFORMATION
3 1. Page 4 – we suggest that the timeline be framed in terms of months rather than days, because we
typically refer to months instead of days for the environmental reports. Thus, we would suggest
changing the reference to 12 and 18 months, respectively, rather than 365 and 552 days.
4 2. Page 7, second paragraph, line 3 – we suggest that the phrase “one of the State’s power grid managers”
be changed to read, “the State’s largest power grid manager.” The ISO is the largest power grid manager
in the state. Most other power grid managers in the state are municipalities which are much smaller
than the ISO.
5 3. Page 37, first paragraph, line 10 – we suggest clarifying the sentence that reads, “According to a program
and project supervisor at the utilities commission, the certificate [of public convenience and necessity]
indicates that the line will provide increased reliability, meet an economic need or facilitate goals related
to renewable power,” to read instead “According to the utilities commission a CPCN may be granted
where the line will provide increased reliability, be justified on economic grounds such as providing
access to lower cost power, or facilitate goals related to renewable power.”
California State Auditor Report 2007-119 45
January 2008
Elaine M. Howle
January 10, 2008
Page 3
4. Page 38, top paragraph, last sentence – we suggest clarifying the sentence that reads, “However, the 5
program and project supervisor indicated that the utilities commission generally works collaboratively
with federal agencies to conduct a joint environmental process,” to read instead, “In such cases, the
utilities commission generally enters into a Memorandum of Understanding with the relevant federal
agency (usually BLM or the U.S. Forest Service) to collaboratively conduct a joint environmental process.”
5. Page 38, first full paragraph, last sentence – we suggest clarifying the sentence to read, “In a case where 6
an IOU requires a CPCN for a project which is undergoing environmental review at another state agency
(e.g. where the utility will own the generation intertie which connects a third party solar thermal
project to the transmission grid, the energy commission undertakes the environmental review for
both the solar thermal project and the intertie; the IOU’s ownership of the intertie requires the utility to
obtain a CPCN from the utilities commission), although state law allows the submission of applications
to the utilities commission concurrently with applications to other agencies, it forbids the utilities
commission from approving projects until the application for the power plant receives approval from
the energy commission.”
Alternatively, the Bureau may wish to consider modifying this paragraph to reflect the fact that the energy
commission may undertake environmental review of a developer’s solar thermal generation project
concurrently with the utilities commission’s environmental review of a network transmission project that
would facilitate the delivery of energy from such a generation project. Indeed, one of the goals of the RETI
process described above is to promote the development of renewable generation and the transmission
needed to deliver it on similar time lines, so that one does not lag the other.
6. Page 43, second paragraph, last sentence - we suggest clarifying the final sentence to read, “In addition, 7
although the utilities commission proactively contacted other agencies, including the City of Santa
Clarita, very early during the CEQA/NEPA process, the City of Santa Clarita provided comments to the
utilities commission very late in the process which proposed a new alternate route which would not
cross the city or the Santa Clarita Valley. The late proposal of the new alternate required consideration by
the utilities commission and delayed release of the environmental impact report.”
We look forward to seeing the final report.
Sincerely,
(Signed by: Sid Quan for)
Paul Clanon
Executive Director
California Public Utilities Commission
46 California State Auditor Report 2007-119
January 2008
Blank page inserted for reproduction purposes only.
California State Auditor Report 2007-119 47
January 2008
Comments
CAlIfoRnIA StAtE AudItoR’S CommEntS on thE
RESponSE fRom thE CAlIfoRnIA publIC utIlItIES
CommISSIon
To provide clarity and perspective, we are commenting on the
response to our audit report from the California Public Utilities
Commission (utilities commission). The numbers below correspond
with the numbers we have placed in the margin of the utilities
commission’s response.
We appreciate the utilities commissions’ information regarding 1
the Renewable Energy Transmission Initiative and its goals.
However, we did not include in our report information related
to this initiative because, as of the close of our fieldwork in
December 2007, its coordinating committee had not proposed
changes to the existing approval processes that we could review
or evaluate.
Based on information obtained from the California Independent 2
System Operator, we included information about recent actions
related to the interconnection process on page 21 of our report.
While preparing our draft report for publication, page numbers 3
shifted. Therefore the page numbers that the utilities commission
cites in its response do not correspond to the page numbers in our
final report.
On pages 13 and 29 of our report, we state that the CAISO controls 4
75 percent of California’s power grid. We do not believe that adding
this information to the page cited by the utilities commission is
necessary. (Section 8545 of California’s Government Code prohibits
the Bureau of State Audits from disclosing information before
an audit is completed. Because we redacted information related
to other agencies we audited from the draft audit report we
distributed for its review, the utilities commission did not have
this information.)
We amended our report to reflect these statements by the 5
executive director of the utilities commission. The executive
director’s statements slightly revised earlier statements provided
to the audit team by a program and project supervisor at the
utilities commission.
We amended slightly the text on page 31 of our report based on this 6
comment. However, we did not fully include the executive director’s
proposed change because the language is too technical in nature
and it did not affect the accuracy of the report.
48 California State Auditor Report 2007-119
January 2008
7 While we appreciate the utilities commission’s suggestion, we do
not believe additional details related to the city of Santa Clarita
are necessary for our report. Documentation provided by the
utilities commission indicates that the time taken by the U.S. Forest
Service to review the draft environmental report was a larger
contributor to the delay in approving this project.
California State Auditor Report 2007-119 49
January 2008
cc: Members of the Legislature
Office of the Lieutenant Governor
Milton Marks Commission on California State
Government Organization and Economy
Department of Finance
Attorney General
State Controller
State Treasurer
Legislative Analyst
Senate Office of Research
California Research Bureau
Capitol Press