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2008 TOP TEN UTILITY SOLAR INTEGRATION RANKINGS | MAY 2009

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Second Annual Top Ten Utility Solar Integration Rankings: Results of the 2008 Utility Solar Electricity Survey

Yasmeen Hossain Senior Research Analyst Solar Electric Power Association

Mike Taylor Director of Research and Education Solar Electric Power Association

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2008 Top Ten Utility Solar Integration Rankings


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Copyright © Solar Electric Power Association, 2009. All rights reserved. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission.

Acknowledgements The Solar Electric Power Association would like to thank all the participating utilities for taking the time to fill out the survey. See the appendix for the listing of participants. A special thank-you goes to Larry Sherwood at IREC for helping with data verification.

Feedback The Solar Electric Power Association would appreciate feedback on this and past reports, as well as new areas of research we should consider in the future. Please take a moment to provide comments and suggestions through an online survey:

http://tinyurl.com/SepaReportFeedback


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Letter from SEPA Leadership

Utility and Solar Industry Colleagues,

We are excited to release our second annual “Top Ten Utility Solar Integration Rankings,” the fifth SEPA report of 2009.

SEPA bridges electric utilities, solar companies and other stakeholders to push solar forward more tangibly, one business at a time. From research projects and national conferences to one-on-one counseling and peer matching services, SEPA’s unique joint partnership offers members critical access to key business relationships and unbiased, actionable intelligence needed to make solar practical and profitable in today’s shifting energy landscape.

The first annual Utility Solar Integration Rankings were published in the summer of 2008 and encompassed data through the end of 2007. We ranked U.S. utilities according to their installed solar capacity in various categories such as customer-side of the meter, utility-side of the meter, solar capacity per customer, etc., and the positive response was overwhelming. We are pleased to present to you our second annual rankings encompassing data through the end of 2008, highlighting the many new developments in the utility solar landscape.

We hope the annual rankings will provide you with pleasant surprises and continue to foster friendly “solar competition” between electric utilities.

If you have any suggestions or comments, feel free to contact either of us.

Julia Hamm Executive Director Solar Electric Power Association

David Rubin SEPA Board Chairman Pacific Gas & Electric Company


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Table of Contents List of Tables 4

List of Figures 4

Introduction 5 About the Report 5

About the Survey 5

Definitions 6

Overall Rankings 7 Annual Rankings - 2008 7

Cumulative Rankings 9

Overall Rankings- Total Solar Electric Capacity 11

Overall Rankings- Customer-Side of the Meter 12

Overall Rankings- Utility-Side of the Meter 13

Breakout Rankings 14 Utility Type 14

Region 15

Breakout Rankings - Utility Type 17

Breakout Rankings - Regional 19

Future Utility Solar Integration 21

Appendix 24 A. Breakout Rankings - Utility Type 24

B. Participating Utilities 27

C. Survey Questions 31


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List of Tables Announced Solar Projects (as of May 2009) 22

List of Figures Total Solar Watts per Customer 11 Total Solar Megawatts 11 Customer-side of the Meter – Solar Watts per Customer 12 Customer-side of the Meter – Solar Megawatts 12 Customer-side of the Meter – Solar Electric Capacity 12 Utility-side of the Meter – Solar Watts per Customer 13 Utility-side of the Meter – Solar Megawatts 13 Total Solar Watts per Customer – Investor Owned Utilities (IOU) 17 Total Solar Megawatts – Investor Owned Utilities (IOU) 17 Total Solar Megawatts – Public Power Utilities (PPU) 18 Total Solar Watts per Customer – Public Power Utilities (PPU) 18 Total Solar Watts per Customer – West 19 Total Solar Megawatts – West 19 Total Solar Watts per Customer – California 19 Total Solar Megawatts – California 19 Total Solar Watts per Customer – Central 20 Total Solar Megawatts – Central 20 Total Solar Watts per Customer – East 20 Total Solar Megawatts – East 20 Customer-side of the Meter Solar Megawatts – Investor Owned Utilities (IOU) 24 Customer-side of the Meter Solar Watts per Customer – Investor Owned Utilities (IOU) 24 Customer-side of the Meter Solar Watts per Customer – Public Power Utilities (PPU) 25 Customer-side of the Meter Solar Megawatts– Public Power Utilities (PPU) 25 Utility-side of the Meter Solar Megawatts – Public Power Utilities (PPU) 26 Utility-side of the Meter Solar Watts per Customer – Public Power Utilities (PPU) 26 Utility-side of the Meter Solar Watts per Customer– Investor Owned Utilities (IOU) 26 Utility-side of the Meter Solar Megawatts – Investor Owned Utilities (IOU) 26 Customer-side of the Meter Solar Megawatts – Investor Owned Utilities (IOU) 27


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Introduction The Solar Electric Power Association is pleased to release its second annual “Top Ten Utility Solar Integration Rankings,” which highlight utilities in the United States who are leading integration of solar electricity into the grid. The rankings list the retail load-serving electric utilities with the most grid-connected solar megawatts and megawatts per customer on both a cumulative and annual basis in a variety of metering configurations. Whether big or small, these utilities exemplify leadership to their peers across the country as they diversity their generation portfolio with new solar resources. SEPA is excited about the increased level of utility interest in solar electricity, as well as in the ranking report itself. New in this year’s survey report:

! “Annual” rankings for solar electric systems installed in 2008, in addition to “cumulative” rankings through 2008;

! “Regional” rankings within 4 regions of the United States;

! An Appendix containing data for all participating utilities.

ABOUT THE REPORT The report data and rankings are divided into four parts: 1. Overall Rankings: The overall rankings show

the utilities with the most total solar megawatts and megawatts per customer for both 2008 and cumulatively, as well as on the customer and utility sides of the meter.

2. Breakout Rankings: These include rankings by utility type and region, showing solar utility leaders both inside and outside well developed solar markets.

3. Project Announcements: This section includes a qualitative and quantitative look to the future and a listing of the large solar project announcements that SEPA is tracking.

4. Appendix: The appendix includes data on rankings by the utility and customer sides of the meter, as well as data for all utilities who participated in the survey.

ABOUT THE SURVEY The electronic survey was conducted of U.S. electric utilities in February and March 2009 (see Appendix C for survey questions) utilizing electronic mail distribution and personal follow-up with a target list of 100+ utilities. An electric utility was defined as a load-serving entity providing electricity to retail customers, unless noted.1 Data is self-reported by the utilities with comparisons between other data sources for fact-checking.2

Customer data, for the per-customer rankings, comes from the Energy Information Administration.

Following the close of the survey, the data was organized and scanned for anomalies, with appropriate contacts to the utility in question. A final check of the data was issued to all participating utilities prior to publication. Ninety-two utilities participated in this year’s survey, an increase of over 80% over last year. (However, not all utilities who participated in the survey necessarily provided data for all categories.) The participating utilities are generally self-selecting for having more active solar programs and projects, so results are not necessarily representative of a typical utility in the United States.

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1 The survey results exclude any utility not serving retail customers, i.e. those that send a traditional electric bill to a consumer. Excluded utilities included parent or holding companies, generation and transmission utilities, power agencies, wholesale distributors or providers, etc. However, some of the survey collection was coordinated with these excluded utility types on behalf of the retail serving utilities.

2 Annual data may not coincide exactly with other reported sources, such as state incentive program data, due to differences on when individual systems were considered operational by the utility at the end of 2008, i.e. different sources record the PV system operational date differently. Examples of activities that could induce dating differences include, but are not limited to, interconnection inspection or approval date, net metering contract date, incentive application or payment date, or building permit inspection or approval date. Data not captured in 2008 would then shift to 2009 (or vice versa) but would be included in the long-term data regardless.

3 Exceptions include the San Francisco Public Utility Commission (CA), the Port of Oakland (CA), Centerpoint Energy (TX), and AEP (TX).

All PV data for the rankings has been de-rated 80% from DC nameplate capacity to AC grid capacity.


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DEFINITIONS Capacity Capacity is the aggregated nameplate grid capacity of all solar electric systems either owned by an electric utility’s retail customers, under contract for the purchase of the solar electric output, and/or owned by the electric utility expressed either in megawatts (MW) or watts per customer (w/customer). All photovoltaic direct-current system capacities have been de-rated 80% to express alternating current grid-capacity. Electric Utility An electric utility is an electric load-serving entity that provides electricity services to retail customers. Investor-owned utilities are privately-owned electric utilities whose stock is publicly traded and are rate regulated by a public utility or service commission. Public power utilities are municipal, cooperative, utility district, or federal electric utilities that are governed by an elected board of directors or council.4

4 Two participating utilities, the San Francisco Public Utilities Commission and the Port of Oakland, are not electrical utilities in the traditional sense, serving residential and commercial customers, but entities that procure electricity for their municipal and port accounts.

Reporting Period Data is expressed either on an annual or cumulative basis. Annual data includes operational solar electric capacity installed between January 1 and December 31, 2008. Cumulative data includes all operational solar electric capacity installed on or before December 31, 2008, including years prior to

Side of the Meter Solar electric systems can be interconnected on either the utility or the customer side of the meter. A customer side of the meter installation, most commonly known as net metering, utilizes a configuration where the solar electricity generation will reduce the customer’s electricity consumption first and, if any additional electricity remains, it will then go into the distribution grid. A utility side of the meter installation is a configuration such that all solar electricity is sent directly into the distribution or transmission grid and has no effect on a customer’s consumption, even if located on a customer’s property or building. Together the two sides of the meter make up the total solar portfolio: Total Solar Portfolio = Customer Side of the Meter + Utility Side of the Meter Solar Electric Technologies There are two primary solar electric technologies, photovoltaic and concentrating solar power. Photovoltaic (PV) technologies utilize a photosensitive material to generate electricity direct from sunlight. PV can also be magnified using mirrors or lenses in low- or high-concentrations known as concentrating photovoltaic technology or CPV. Concentrating solar power (CSP) technologies utilize mirrors or lenses to concentrate sunlight on a point or line and generate high-temperature heat, which is captured to generate electricity in a later process.

A doubling or more

of solar megawatts in

a utility’s portfolio

was not unusual in

2008.


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Overall Rankings What is notable about this year’s rankings is the amount of solar growth at a number of different utilities across the country. A doubling or more of solar megawatts in a utility’s portfolio was not unusual. While California continues to lead the country, twelve utilities in eight different states made the annual and cumulative solar megawatts category rankings. The rankings include many of the same utilities that placed in last year’s cumulative rankings, but with the addition of the annual rankings and a large increase in the number of participating utilities, there are certainly some new faces. Solar technologies are emerging as a generation solution for utilities and their customers with a wide variety of creative business partnerships. ANNUAL RANKINGS - 2008 The annual rankings are based on the amount of solar electricity installed during the 2008 calendar year. This is our first year of providing annual rankings and we consider it the most important metric for measuring solar growth by utility. It includes all solar electricity integrated into the utility’s portfolio regardless of whether it was owned by the utility, their customer, or a third-party company. No new concentrating thermal solar power plants were commissioned in 2008 so all data is for photovoltaic installations only. Total Solar Megawatts Pacific Gas and Electric Company (CA), headquartered in San Francisco, was the most solar integrated utility in 2008, installing or interconnecting 85 MW of new capacity, which represents over 44% of the survey total. Ranked second and third were Southern California Edison (CA) and San Diego Gas & Electric (CA), rounding out a sweep of the top three spots by California investor owned utilities. However, utilities in seven different states placed in the Top Ten. The Top Ten utilities represent 88% of the surveyed megawatt total, indicating a wide margin over other survey participants.

Total Solar Watts per Customer The San Francisco Public Utilities Commission5

The rankings also include the top solar utilities in 2008 on the customer and the utility sides of the meter for both solar megawatts and watts per customer. Pacific Gas & Electric Company (CA) integrated more solar megawatts than any other utility on both the customer and utility sides of the meter in 2008. In watts per customer, Kauai Island Coop (HI) had the highest watts per customer on the customer side of the meter and San Francisco PUC (CA) on the utility side.

(CA), a water utility that provides electrical generation to its municipal buildings, ranked first by a large margin, with almost 2700 watts per customer based on their 349 municipal accounts. SFPUC has invested in sizeable PV projects with assistance of statewide IOU incentive programs to achieve its coverage of city buildings. Ranked second and third were Kauai Island Coop (HI) and Palo Alto Utilities (CA) with 47 and 44 watts/customer respectively. The watts per customer rankings are dominated by California and Hawaii utilities, the one exception being Black Hills Energy (CO). Customer and Utility Sides of the Meter

5 All SFPUC customers are municipal buildings whose electrical generation supply is derived from the City of San Francisco’s water operations.

Annual Rankings Summary – 2008 Solar Megawatts - 2008 Total: Pacific Gas & Electric (CA) Customer Side: Pacific Gas & Electric (CA) Utility Side: Pacific Gas & Electric (CA) Solar Watts per Customer - 2008 Total: San Francisco PUC (CA) Customer Side: Kauai Island Coop (HI) Utility Side: San Francisco PUC (CA)


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Total Solar Megawatts

Annual (2008) #1 Pacific Gas & Electric Co. - CA (84.9) #2 Southern California Edison - CA (32.4) #3 San Diego Gas & Electric Co. - CA (16.0) #4 Public Serv. Co. of CO (Xcel Energy) – CO (14.2) #5 Public Service Electric & Gas Co. – NJ (5.5) #6 Arizona Public Service Co. - AZ (3.56) #7 Hawaiian Electric Co. - HI (3.54) #8 Portland General Electric - OR (3.538) #9 Sacramento Municipal Utility District –CA (2.9) #10 Long Island Power Authority - NY (2.5)

Total Solar Watts per Customer

Annual (2008)

#1 San Francisco PUC - CA (2696.3) #2 Kauai Island Utility Coop. - HI (47.1) #3 Palo Alto Utilities - CA (44.4) #4 Maui Electric Co. - HI (32.7) #5 Pacific Gas & Electric Co. - CA (16.4) #6 Hawaii Electric Light Co. - HI (13.6) #7 Burbank Water & Power - CA (12.9) #8 Black Hills Energy - CO (12.5) #9 Hawaiian Electric Co. - HI (12.0) #10 San Diego Gas & Electric Co. - CA (11.8)

Annual Rankings (2008) – Top Ten


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CUMULATIVE RANKINGS The cumulative rankings are based on the amount of solar installed in all years leading up to and including 2008. This is our second year of providing cumulative rankings, which provides a reference point for comparison to last year. No new CSP plants were built in 2008 but existing CSP plants significantly influenced the results. Total Solar Megawatts Southern California Edison (CA) is once again the most solar integrated utility, in large part due to their long-standing contracts with the SEGS CSP plants in southern California (though it is worth noting that they would still be ranked second without them). SCE’s total of 441 megawatts represents about 47% of the cumulative survey total. Pacific Gas & Electric Company (CA) and NV Energy (NV) are ranked second and third with 229 and 78 megawatts respectively. PG&E’s total is entirely made up of PV installations, while NV Energy’s placing is due to its contract with the 64MW Nevada Solar One CSP plant. There were not many changes in the cumulative Top Ten, with only two utilities switching places and no new entrants. In fact, the Top Ten utilities strengthened their “market share” to 94% of the survey total, only a slight decline over last year. Overall, utilities in six different states placed in the Top Ten. Total Solar Watts per Customer The San Francisco PUC (CA) ranked first in this cumulative category with over 4700 watts/customer, but was followed closely by the Port of Oakland (CA) with over 3400. Both were new participants in this year’s survey and, as was mentioned earlier, are in a unique situation in that they have a small number of specific municipal and port customer accounts relative to the amount of solar installed. Southern California Edison (CA) was a distant third with

92 watts/customer. California and Hawaii took 9 of the Top Ten per customer rankings, with NV Energy (NV) as the exception. Customer and Utility Sides of the Meter On a cumulative basis, Pacific Gas & Electric (CA) retained its solar megawatts title on the customer side of the meter, while Southern California Edison (CA) held it on the utility side. On a watts per customer basis, Kauai Island Coop (HI) and San Francisco PUC (CA) held their ground on the customer and utility sides of the meter respectively.

Cumulative Ranking Summary Solar Megawatts – Cumulative Total: Southern California Edison (CA) Customer Side: Pacific Gas & Electric (CA) Utility Side: Southern California Edison (CA) Solar Watts per Customer – Cumulative Total: San Francisco PUC (CA) Customer Side: Kauai Island Coop (HI) Utility Side: San Francisco PUC (CA)

Overall Rankings – Fast-Facts 2008 Total Solar Megawatts ! Participating utilities saw an average

increase of 2 megawatts and a median of 0.1 megawatts of solar electricity added to their portfolio in 2008.

! The Top Ten utilities represented 88% of the survey megawatt total for this category.

! Utilities in seven different states placed in the Top Ten.

Total Solar Watts per Customer ! Participating utilities saw an average

increase of 33 watts per customer and a median of 1 watt per customer of solar electricity added to their portfolio in 2008.

! Nine of the top ten utilities are from California and Hawaii.

Cumulative Total Solar Megawatts ! Participating utilities had an average of

11 megawatts and a median of 0.2 megawatts of solar in their cumulative portfolio.

! The Top Ten utilities represented 94% of the survey megawatt total for this category.

! Utilities in six different states placed in the Top Ten.

Total Solar Watts per Customer ! Participating utilities had an average of

97 watts per customer and a median of 2 watts per customer of solar in their cumulative portfolio.

! Nine of the top ten utilities are from California and Hawaii.


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Cumulative #1 Southern California Edison – CA (441.4) #2 Pacific Gas & Electric Co. – CA (229.5) #3 NV Energy – NV (77.9) #4 San Diego Gas & Electric Co. – CA (49.3) #5 Public Serv. Co. of CO (Xcel Energy) – CO (28.5) #6 LA Department of Water & Power – CA (13.6) #7 Public Service Electric & Gas Co. – NJ (13.2) #8 Arizona Public Service Co. – AZ (10.6) #9 Sacramento Municipal Utility District – CA (10.2) #10 Long Island Power Authority – NY (7.7)


Cumulative

#1 San Francisco PUC – CA (4739.3) #2 Port of Oakland – CA (3414.7) #3 Southern California Edison – CA (91.7) #4 Kauai Island Utility Coop. – HI (70.6) #5 Palo Alto Utilities – CA (70.4) #6 NV Energy – NV (68.6) #7 Pacific Gas & Electric Co. – CA (44.3) #8 Maui Electric Co. – HI (43.8) #9 Hawaii Electric Light Co. – HI (41.0) #10 San Diego Gas & Electric Co. – CA (36.3)

Cumulative Rankings – Top Ten


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OVERALL RANKINGS- TOTAL SOLAR ELECTRIC CAPACITY


Annual (2008) Cumulative (Through 2008) Rank Utility MW-AC Rank ‘07 Utility MW-AC

#1 Pacific Gas & Electric Co. – CA 84.9 #1 1 Southern California Edison – CA 441.4 #2 Southern California Edison – CA 32.4 #2 2 Pacific Gas & Electric Co. – CA 229.5 #3 San Diego Gas & Electric Co. – CA 16.0 #3 3 NV Energy – NV 77.9 #4 Public Serv. Co. of CO (Xcel Energy) – CO 14.2 #4 4 San Diego Gas & Electric Co. – CA 49.3 #5 Public Service Electric & Gas Co. - NJ 5.5 #5 5 Public Serv. Co. of CO (Xcel Energy) – CO 28.5 #6 Arizona Public Service Co. – AZ 3.56 #6 6 LA Department of Water & Power – CA 13.6 #7 Hawaiian Electric Co. – HI 3.54 #7 8 Public Service Electric & Gas Co. – NJ 13.2 #8 Portland General Electric – OR 3.538 #8 7 Arizona Public Service Co. – AZ 10.6 #9 Sacramento Municipal Utility District – CA 2.9 #9 9 Sacramento Municipal Utility District – CA 10.2

#10 Long Island Power Authority – NY 2.5 #10 10 Long Island Power Authority – NY 7.7 Other Participating Utilities 23.9 Other Participating Utilities 61.4 Total 192.8 Total 943.1

Annual (2008) Cumulative (Through 2008) Rank Utility Watts-AC Rank ‘07 Utility Watts-AC

#1 San Francisco PUC – CA 2696.3 #1 N/A* San Francisco PUC – CA 4739.3 #2 Kauai Island Utility Coop. - HI 47.1 #2 N/A* Port of Oakland – CA 3414.7 #3 Palo Alto Utilities – CA 44.4 #3 1 Southern California Edison – CA 91.7 #4 Maui Electric Co. – HI 32.7 #4 4 Kauai Island Utility Coop. - HI 70.6 #5 Pacific Gas & Electric Co. – CA 16.4 #5 5 Palo Alto Utilities – CA 70.4 #6 Hawaii Electric Light Co. – HI 13.6 #6 2 NV Energy – NV 68.6 #7 Burbank Water & Power – CA 12.9 #7 3 Pacific Gas & Electric Co. – CA 44.3 #8 Black Hills Energy - CO 12.5 #8 10 Maui Electric Co. – HI 43.8 #9 Hawaiian Electric Co. – HI 12.0 #9 N/A* Hawaii Electric Light Co. – HI 41.0

#10 San Diego Gas & Electric Co. – CA 11.8 #10 6 San Diego Gas & Electric Co. – CA 36.3

* Utility did not participate in last year’s survey

*Utility did not participate in last year’s survey


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Customer-side of the Meter – Solar Electric Capacity

Customer-side of the Meter – Solar Watts per Customer

Customer-side of the Meter – Solar Megawatts

OVERALL RANKINGS- CUSTOMER-SIDE OF THE METER


#1 Pacific Gas & Electric Co. – CA 74.9 #1 1 Pacific Gas & Electric Co. – CA 219.1 #2 Southern California Edison – CA 30.4 #2 2 Southern California Edison – CA 85.5 #3 San Diego Gas & Electric Co. – CA 15.3 #3 3 San Diego Gas & Electric Co. – CA 48.3 #4 Public Serv. Co. of CO (Xcel Energy) – CO 14.2 #4 7 Public Serv. Co. of CO (Xcel Energy) – CO 22.0 #5 Public Service Electric & Gas Co. – NJ 5.5 #5 6 Public Service Electric & Gas Co. – NJ 13.2 #6 Arizona Public Service Co. – AZ 3.6 #6 5 LA Department of Water & Power – CA 12.8 #7 Hawaiian Electric Co. – HI 3.5 #7 8 Long Island Power Authority – NY 7.7 #8 Portland General Electric – OR 2.8 #8 10 Arizona Public Service Co. – AZ 6.1 #9 Long Island Power Authority – NY 2.5 #9 9 Sacramento Municipal Utility District – CA 5.0

#10 Sacramento Municipal Utility District - CA 2.0 #10 N/A* Hawaiian Electric Co. – HI 4.6 Other Participating Utilities 21.9 Other Participating Utilities 47.7 Total 176.5 Total 471.9


#1 Kauai Island Utility Coop. - HI 47.1 #1 2 Kauai Island Utility Coop. - HI 70.6 #2 Palo Alto Utilities – CA 44.4 #2 3 Palo Alto Utilities – CA 70.4 #3 Pacific Gas & Electric Co. – CA 14.5 #3 1 Pacific Gas & Electric Co. – CA 42.3 #4 Maui Electric Co. – HI 14.4 #4 N/A* Hawaii Electric Light Co. – HI 40.9 #5 Hawaii Electric Light Co. – HI 13.6 #5 4 San Diego Gas & Electric Co. – CA 35.6 #6 Burbank Water & Power – CA 12.9 #6 7 Roseville Electric – CA 26.0 #7 Black Hills Energy - CO 12.5 #7 8 Maui Electric Co. – HI 25.6 #8 Hawaiian Electric Co. – HI 12.0 #8 9 Burbank Water & Power – CA 21.3 #9 Imperial Irrigation District – CA 11.8 #9 13 City of Healdsburg – CA 17.795

#10 San Diego Gas & Electric Co. – CA 11.3 #10 6 Southern California Edison – CA 17.759



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Utility-side of the Meter – Solar Megawatts

Utility-side of the Meter – Solar Watts per Customer

OVERALL RANKINGS- UTILITY-SIDE OF THE METER


#1 Pacific Gas & Electric Co. – CA 10 #1 1 Southern California Edison – CA 356 #2 Southern California Edison – CA 2.0 #2 2 NV Energy – NV 76.2 #3 Maui Electric Co. – HI 1.2 #3 11 Pacific Gas & Electric Co. – CA 10.3 #4 San Francisco PUC – CA 0.941 #4 3 Public Serv. Co. of CO (Xcel Energy) – CO 6.4 #5 Sacramento Municipal Utility District – CA 0.9408 #5 6 Sacramento Municipal Utility District - CA 5.2 #6 Portland General Electric – OR 0.8 #6 5 Tucson Electric Power – AZ 4.9 #7 San Diego Gas & Electric Co. – CA 0.7 #7 4 Arizona Public Service Co. – AZ 4.5 #8 We Energies – WI 0.3 #8 N/A* San Francisco PUC – CA 1.7 #9 Glendale Water & Power – CA 0.2 #9 NR Maui Electric Co. – HI 1.2

#10 Madison Gas & Electric Co. – WI 0.15 #10 10 San Diego Gas & Electric Co. – CA 1.0 Other Participating Utilities 0.4 Other Participating Utilities 5.0 Total 17.5 Total 472.3


#1 San Francisco PUC – CA 2696.3 #1 N/A* San Francisco PUC – CA 4739.3 #2 Maui Electric Co. – HI 18.3 #2 N/A* Port of Oakland – CA 3414.7 #3 City of Ashland - OR 4.7 #3 1 Southern California Edison – CA 74.0 #4 City of St. George - UT 3.9 #4 2 NV Energy – NV 67.1 #5 Glendale Water & Power – CA 2.5 #5 NR Maui Electric Co. – HI 18.3 #6 Pacific Gas & Electric Co. – CA 1.9 #6 3 Tucson Electric Power – AZ 12.4 #7 Sacramento Municipal Utility District - CA 1.6 #7 NR Lodi Electric Utility – CA 9.5 #8 Madison Gas & Electric Co. – WI 1.1 #8 4 Sacramento Municipal Utility District – CA 8.8 #9 Portland General Electric – OR 1.0 #9 6 Public Serv. Co. of CO (Xcel Energy) - CO 4.8

#10 San Diego Gas & Electric Co. – CA 0.5 #10 N/A* City of Ashland - OR 4.7

*Utility did not participate in last year’s survey NR= No Rank, indicates utility had no solar capacity


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Breakout Rankings The breakout rankings provide an opportunity to uncover leaders by utility type and region, highlighting utility leaders who may be overshadowed in the overall rankings.6

UTILITY TYPE The rankings have been broken down by utility type; investor-owned utilities and public power utilities (which includes municipal, cooperative, utility district and other non-rate regulated utilities). Solar Megawatts Investor-owned Utilities – 2008 & Cumulative The megawatt rankings did not change since the top three utilities in the overall survey were all IOUs. Pacific Gas & Electric (CA), Southern California Edison (CA) and San Diego Gas & Electric (CA) were the top three in 2008 and Southern California Edison (CA), Pacific Gas & Electric (CA) and NV Energy (NV) were the top three cumulatively respectively.

Twelve different IOUs in eight different states placed in the top ten between the annual and cumulative rankings. Public Power Utilities – 2008 & Cumulative The top public power utility in 2008 was the Sacramento Municipal Utility District (CA) integrating approximately 3 megawatts and the top cumulatively was the Los Angeles Department of Water and Power (CA) with a total of about 14 megawatts. Second and third respectively for the annual ranking is the Long Island Power Authority (NY) and the Los Angeles Department of Water and Power (CA). The cumulative rankings second and third place

6 Note: The breakout rankings chapter only includes total solar portfolios; utility and customer side of the meter data by utility type is available in the Appendix.

go to Sacramento Municipal Utility District (CA) and the Long Island Power Authority (NY) again. Thirteen different public power utilities in five different states placed in the Top Ten between the annual and cumulative rankings. Solar Watts per Customer Investor-owned Utilities – 2008 & Cumulative The megawatt per customer rankings changed on an annual basis with Maui Electric Co. (HI) taking the top spot with 33 watts/customer installed in 2008. Pacific Gas & Electric (CA) and Hawaii Electric Light Co. (HI) took second and third place respectively. Cumulatively, Southern California Edison (CA) was again the leading solar IOU with 92 watts per customer, but NV Energy (NV) and Pacific Gas & Electric (CA) traded places for second and third compared to the gross megawatts ranking. Thirteen different IOUs in six different states placed in the Top Ten between the annual and cumulative rankings. Public Power Utilities – 2008 & Cumulative Both in 2008 and cumulatively, San Francisco PUC (CA) had the most watts per customer. Kauai Island Coop (HI) took second followed by Palo Alto Utilities (CA) in 2008. Cumulatively, Port of Oakland (CA) and Kauai Island Coop (HI) placed second and third, the latter just

Rankings by Utility Type – Summary 2008 Solar Megawatts IOU: Pacific Gas & Electric (CA) PPU: Sacramento Municipal Utility Dist. (CA) Solar Watts per Customer IOU: Maui Electric Co. (HI) PPU: San Francisco PUC (CA) Cumulative Solar Megawatts – Cumulative IOU: Southern California Edison (CA) PPU: LA Dept of Water & Power (CA) Solar Watts per Customer – Cumulative IOU: Southern California Edison (CA) PPU: San Francisco PUC (CA)


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beating out Palo Alto Utilities (CA) by a fraction of a watt per customer. Notably, Lodi Electric (CA) moved from 12th to 5th over last year’s report. REGION The rankings were further broken down into top 5 lists by four regions; West, Central, East and California.

Solar Megawatts California – 2008 & Cumulative As has been previously discussed, Pacific Gas & Electric (CA), Southern California Edison (CA), and San Diego Gas & Electric (CA) were the top three utilities in 2008 and cumulatively for the nation, so they naturally are for California as well. West – 2008 & Cumulative Outside of California in the West region, Public Service of Colorado – Xcel Energy (CO), Arizona Public Service (AZ), and Hawaiian Electric Co. (HI) were first, second, and third in 2008, integrating between 3 and 14 new megawatts each. On a cumulative basis, NV Energy (NV) ranks number one, ahead of Public Service of Colorado – Xcel Energy (CO), and Arizona Public Service (AZ), ranging between 11 and 78 megawatts. Central – 2008 & Cumulative In the Central region, We Energies (WI) ranked first, followed by Austin Energy (TX), and Commonwealth Edison (IL) in 2008, installing just over 2 megawatts between the three of them. Cumulatively, the three utilities trade places, with Austin Energy (TX) on top, followed by Commonwealth Edison - Exelon (IL), and

then We Energies (WI), ranging between 1 and 2 megawatts each. East – 2008 & Cumulative The East region features the same first, second, and third rankings for both 2008 and cumulative – Public Service Electric & Gas (NJ), Long Island Power Authority (NY), and NSTAR (MA). Cumulatively they range between 3 and 13 megawatts each. Solar Watts per Customer California – 2008 & Cumulative San Francisco PUC naturally kept its number one ranking in California for both 2008 and cumulatively in solar watts per customer (given its national ranking). Palo Alto Utilities and Pacific Gas & Electric ranked second and third in 2008, while the Port of Oakland and Southern California Edison took second and third cumulatively. West – 2008 & Cumulative Outside of California, Kauai Island Coop (HI) ranked first for both 2008 and cumulative in solar watts per customer. In 2008, Hawaii completed the sweep with Maui Electric (HI) and Hawaii Electric Light Co. (HI) taking second and third respectively. Cumulatively, Kauai was followed by NV Energy (NV) and then Maui Electric (HI). Central – 2008 & Cumulative In the Central region, Austin Energy (TX) ranked first, followed by Madison Gas & Electric (WI), and then We Energies (WI) in 2008 and cumulatively. East – 2008 & Cumulative The East region featured a utility newcomer in first place; Green Cove Springs Electric (FL) for both 2008 and cumulative. In 2008 this was followed by Gainesville Regional Utilities (FL) and then Public Service Electric & Gas (NJ). Cumulatively, they were followed by Long Island Power Authority (NY) and Public Service Electric & Gas (NJ).


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Rankings by Region – Summary 2008 Solar Megawatts - 2008 California: Pacific Gas & Electric (CA) West: Public Service of Colorado (CO) Central: We Energies (WI) East: Public Service Electric & Gas (NJ) Solar Watts per Customer - 2008 California: San Francisco PUC (CA) West: Kauai Island Coop (CA) Central: Austin Energy (TX) East: Green Cove Springs Electric (FL) Cumulative Solar Megawatts – Cumulative California: Southern California Edison (CA) West: NV Energy (NV) Central: Austin Energy (TX) East: Public Service Electric & Gas (NJ) Solar Watts per Customer – Cumulative California: San Francisco PUC (CA) West: Kauai Island Coop (CA) Central: Austin Energy (TX) East: Green Cove Springs Electric (FL)


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Total Solar Megawatts – Investor Owned Utilities (IOU)

Total Solar Watts per Customer – Investor Owned Utilities (IOU)

BREAKOUT RANKINGS - UTILITY TYPE

Annual (2008) - IOUs Cumulative (Through 2008)- IOUs Rank MW-AC Rank ‘07 MW-AC

#1 Pacific Gas & Electric Co. - CA 84.9 #1 1 Southern California Edison - CA 441.4 #2 Southern California Edison - CA 32.4 #2 2 Pacific Gas & Electric Co. - CA 229.5 #3 San Diego Gas & Electric Co. - CA 16.0 #3 3 NV Energy - NV 77.9 #4 Public Serv. Co. of CO (Xcel Energy) - CO 14.2 #4 4 San Diego Gas & Electric Co. - CA 49.3 #5 Public Service Electric & Gas Co. - NJ 5.5 #5 5 Public Serv. Co. of CO (Xcel Energy) - CO 28.5 #6 Arizona Public Service Co. - AZ 3.6 #6 7 Public Service Electric & Gas Co. - NJ 13.2 #7 Hawaiian Electric Co. - HI 3.5 #7 6 Arizona Public Service Co. - AZ 10.6 #8 Portland General Electric - OR 3.5 #8 9 Tucson Electric Power - AZ 7.1 #9 Maui Electric Co. - HI 2.2 #9 N/A* Hawaiian Electric Co. - HI 4.6

#10 NSTAR - MA 1.3 #10 12 Portland General Electric - OR 4.44

Annual (2008) - IOUs Cumulative (Through 2008) - IOUs Rank Watts-AC Rank ‘07 Watts-AC

#1 Maui Electric Co. - HI 32.7 #1 1 Southern California Edison - CA 91.7 #2 Pacific Gas & Electric Co. - CA 16.4 #2 2 NV Energy - NV 68.6 #3 Hawaii Electric Light Co. - HI 13.6 #3 3 Pacific Gas & Electric Co. - CA 44.3 #4 Black Hills Energy - CO 12.5 #4 6 Maui Electric Co. - HI 43.8 #5 Hawaiian Electric Co. - HI 12.0 #5 N/A* Hawaii Electric Light Co. - HI 41.0 #6 San Diego Gas & Electric Co. - CA 11.8 #6 4 San Diego Gas & Electric Co. - CA 36.3 #7 Public Serv. Co. of CO (Xcel Energy) - CO 10.7 #7 9 Public Serv. Co. of CO (Xcel Energy) - CO 21.4 #8 Southern California Edison - CA 6.7 #8 5 Tucson Electric Power - AZ 18.0 #9 Portland General Electric - OR 4.4 #9 N/A* Hawaiian Electric Co. - HI 15.5

#10 Arizona Public Service Co. - AZ 3.2 #10 11 Black Hills Energy - CO 14.7

*Utility did not participate in last year’s survey.


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Total Solar Megawatts – Public Power Utilities (PPU)

Total Solar Watts per Customer – Public Power Utilities (PPU)

Annual (2008) - PPUs Cumulative (Through 2008) - PPUs Rank MW-AC Rank ‘07 MW-AC

#1 Sacramento Municipal Utility District - CA 2.9 #1 1 LA Department of Water & Power - CA 13.6 #2 Long Island Power Authority - NY 2.5 #2 2 Sacramento Municipal Utility District - CA 10.2 #3 LA Department of Water & Power - CA 2.0 #3 3 Long Island Power Authority - NY 7.7 #4 Imperial Irrigation District - CA 1.7 #4 5 Austin Energy - TX 2.9 #5 Kauai Island Utility Coop. - HI 1.5 #5 4 Salt River Project - AZ 2.5 #6 Palo Alto Utilities - CA 1.3 #6 6 Kauai Island Utility Coop. - HI 2.2 #7 Turlock Irrigation District - CA 0.943 #7 9 Imperial Irrigation District - CA 2.2 #8 San Francisco PUC - CA 0.941 #8 7 Palo Alto Utilities - CA 2.0 #9 Austin Energy - TX 0.9 #9 N/A* San Francisco PUC - CA 1.7

#10 Burbank Water & Power - CA 0.7 #10 10 Roseville Electric - CA 1.3

Annual (2008) - PPUs Cumulative (Through 2008) - PPUs Rank Watts-AC Rank ‘07 Watts-AC

#1 San Francisco PUC - CA 2696.3 #1 N/A* San Francisco PUC - CA 4739.3 #2 Kauai Island Utility Coop. - HI 47.1 #2 N/A* Port of Oakland - CA 3414.7 #3 Palo Alto Utilities - CA 44.4 #3 1 Kauai Island Utility Coop. - HI 70.6 #4 Burbank Water & Power - CA 12.9 #4 2 Palo Alto Utilities - CA 70.4 #5 Imperial Irrigation District - CA 11.8 #5 12 Lodi Electric Utility - CA 26.6 #6 Roseville Electric - CA 10.2 #6 4 Roseville Electric - CA 26.0 #7 City of Healdsburg - CA 9.9 #7 5 Burbank Water & Power - CA 21.4 #8 Turlock Irrigation District - CA 9.6 #8 9 City of Healdsburg - CA 17.8 #9 City of Ashland - OR 8.9 #9 3 Sacramento Municipal Utility District - CA 17.3

#10 City of Pasadena - CA 8.2 #10 N/A* City of Ashland - OR 16.9

*Utility did not participate in last year’s survey.


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Total Solar Megawatts – California

Total Solar Watts per Customer – California

Total Solar Megawatts – West

Total Solar Watts per Customer – West

BREAKOUT RANKINGS - REGIONAL

California Annual (2008) Cumulative (Through 2008)

Rank MW-AC Rank MW-AC #1 Pacific Gas & Electric Co. - CA 84.9 #1 Southern California Edison - CA 441.4 #2 Southern California Edison - CA 32.4 #2 Pacific Gas & Electric Co. - CA 229.5 #3 San Diego Gas & Electric Co. - CA 16.0 #3 San Diego Gas & Electric Co. - CA 49.3 #4 Sacramento Municipal Utility District - CA 2.9 #4 LA Department of Water & Power - CA 13.6 #5 LA Department of Water & Power - CA 2.0 #5 Sacramento Municipal Utility District - CA 10.2

Annual (2008) Cumulative (Through 2008) Rank Watts-AC Rank Watts-AC

#1 San Francisco PUC - CA 2696.3 #1 San Francisco PUC - CA 4739.3 #2 Palo Alto Utilities - CA 44.4 #2 Port of Oakland - CA 3414.7 #3 Pacific Gas & Electric Co. - CA 16.4 #3 Southern California Edison - CA 91.7 #4 Burbank Water & Power - CA 12.9 #4 Palo Alto Utilities - CA 70.4 #5 San Diego Gas & Electric Co. - CA 11.8 #5 Pacific Gas & Electric Co. - CA 44.3

_________________________________________________________________________________________________________________________________ West

Annual (2008) Cumulative (Through 2008) Rank MW-AC Rank MW-AC #1 Public Serv. Co. of CO (Xcel Energy) - CO 14.2 #1 NV Energy - NV 77.9 #2 Arizona Public Service Co. - AZ 3.6 #2 Public Serv. Co. of CO (Xcel Energy) - CO 28.5 #3 Hawaiian Electric Co. - HI 3.54 #3 Arizona Public Service Co. - AZ 10.6 #4 Portland General Electric - OR 3.538 #4 Tucson Electric Power - AZ 7.1 #5 Maui Electric Co. - HI 2.2 #5 Hawaiian Electric Co. - HI 4.6


#1 Kauai Island Utility Coop. - HI 47.1 #1 Kauai Island Utility Coop. - HI 70.6 #2 Maui Electric Co. - HI 32.7 #2 NV Energy - NV 68.6 #3 Hawaii Electric Light Co. - HI 13.6 #3 Maui Electric Co. - HI 43.8 #4 Black Hills Energy - CO 12.5 #4 Hawaii Electric Light Co. - HI 41.0 #5 Hawaiian Electric Co. - HI 12.0 #5 Public Serv. Co. of CO (Xcel Energy) - CO 21.4


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Total Solar Megawatts – East

Total Solar Watts per Customer – East

Total Solar Megawatts – Central

Total Solar Watts per Customer – Central

East Annual (2008) Cumulative (Through 2008)

Rank MW-AC Rank MW-AC #1 Public Service Electric & Gas Co. - NJ 5.5 #1 Public Service Electric & Gas Co. - NJ 13.2 #2 Long Island Power Authority - NY 2.5 #2 Long Island Power Authority - NY 7.7 #3 NSTAR - MA 1.3 #3 NSTAR - MA 2.8 #4 Central Hudson Gas & Electric - NY 0.6 #4 Consolidated Edison Co. of NY - NY 2.4 #5 Consolidated Edison Co. of NY - NY 0.4 #5 Central Hudson Gas & Electric - NY 1.8


#1 Green Cove Springs Electric - FL 4.2 #1 Green Cove Springs Electric - FL 7.4 #2 Gainesville Regional Utilities - FL 3.1 #2 Long Island Power Authority - NY 7.0 #3 Public Service Electric & Gas Co. - NJ 2.6 #3 Public Service Electric & Gas Co. - NJ 6.3 #4 Long Island Power Authority - NY 2.2 #4 Central Hudson Gas & Electric - NY 6.2 #5 Central Hudson Gas & Electric - NY 1.9 #5 Gainesville Regional Utilities - FL 4.2

Central Annual (2008) Cumulative (Through 2008) Rank MW-AC Rank MW-AC #1 We Energies - WI 1.0 #1 Austin Energy - TX 3.0 #2 Austin Energy - TX 0.9 #2 Commonwealth Edison Co. (Exelon) - IL 1.9 #3 Commonwealth Edison Co. (Exelon) -IL 0.18 #3 We Energies - WI 1.4 #4 CenterPoint Energy - TX 0.16 #4 Columbus Southern Power Company - OH 0.5 #5 Madison Gas & Electric Co. - WI 0.15 #5 Madison Gas & Electric Co. - WI 0.3


#1 Austin Energy - TX 2.3 #1 Austin Energy - TX 7.6 #2 Madison Gas & Electric Co. - WI 1.1 #2 Madison Gas & Electric Co. - WI 2.1 #3 We Energies - WI 0.9 #3 We Energies - WI 1.3 #4 Columbia Water & Light - MO 0.5 #4 Minnesota Power - MN 0.9 #5 Minnesota Power - MN 0.4 #5 Muscatine Power & Water - IA 0.8

_______________________________________________________________________________________________________________________________


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Future Utility Solar Integration The last 12 months have seen both utility-driven and utility-scale project/program announcements emerge as a new and significant solar market, on the order of 7500 MW (Table 1). (To be clear, “utility-driven” and “utility-scale” are not necessarily one in the same – the solar industry will continue to innovate and lead large-scale solar projects, while the utility sector is in many respects still exploring the possibilities.) There is a likelihood that not all of these announced projects will come to fruition. Only time and the hard determination of the emerging solar economy will tell. And what new projects, yet to be announced, will emerge? Certainly this list of projects is just the tip of the iceberg. What can be said, however, is this: Utility-scale solar electric projects have entered a new phase of market development in which they will be the primary solar industry megawatts and cash-flow drivers. In addition, utility-driven projects are a new and emerging dynamic in the solar industry whose impact is still being played out. Significant additional market expansion is anticipated. Residential and commercial photovoltaic projects will continue to be important market segments, especially in secondary markets with small-business job creation, but the solar industry is diversifying away from rooftop net metered projects as its primary economic means. That is not to say that “solar farms” are taking over, just that the industry is becoming more diverse and expanding into new financial project propositions. As was discussed in last year’s Utility Solar Market Review, ownership, siting, and side of the meter niches are all increasingly complex approaches which savvy utilities and solar companies are beginning to utilize within new distributed generation opportunities. In particular, the change is dramatic with the scale and ownership of distributed projects. Recent PV program announcements by Southern California Edison and Pacific Gas and Electric amount to 750 MW (this number is potentially even higher based on pending

revisions by the California Public Utilities Commission), more than two times what was installed in 2008 in the U.S. These types of utility programs are still being explored through the various social, political and regulatory processes. The projects need to be structured so as to provide involvement with and synergies within the existing solar industry. Medium- and utility-scale photovoltaic and concentrating solar thermal power projects are also being announced at a rapid pace, adding around 20 billion of dollars worth of investment. The wind industry, perhaps a few years ahead of the solar industry in scale and cost, can provide some lessons for centralized project growth, particularly permitting and transmission. There may in fact be daily or seasonal synergies to more completely utilize existing or new transmission paths. In short, the industry is growing rapidly, moving beyond the iconic vision of a residential solar rooftop future. The growth is still predicated on incentives, as much of the electricity industry is, in one way or another. The passage of the eight-year federal solar investment tax credit, with utility utilization included, will go a long way toward providing market certainty for utility and utility-scale projects, as well as manufacturing investment, job growth, and associated benefits. Certainly the economy, financing markets, transmission, and permitting are significant risks that can impact implementation. But the impressive list of solar projects in the queue provides a significant amount of market activity in the coming years, even utilizing conservative estimates.

Utility-driven projects are a new and emerging dynamic

in the solar industry whose

impact is still being played out. Significant additional

market expansion is anticipated.


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Caveat: Many of these projects and programs are subject to regulatory or board approvals and should be considered tentative until official permission is granted. Project/Program MW Purchasing Utility Developer State Type Anticipated

Completion Solana Generating Station 280 Arizona Public Service Abengoa Solar AZ CSP 2012 APS DG Program 2,4 125 Arizona Public Service TBD AZ PV 2009-2013 Tucson DG PV Program2 15 Tucson Electric Sun Edison AZ PV TBA Carrizo Energy Solar Farm 177 Pacific Gas & Electric NextEra Energy CA CSP 2011 Ivanpah SEGS1 500 Pacific Gas & Electric Brightsource Energy CA CSP 2012 Mojave Solar Park 553 Pacific Gas & Electric Brightsource Energy CA CSP 2011 San Joaquin Solar Hybrid (biofuel)3

107 Pacific Gas & Electric Martifer CA CSP 2011

Stirling Solar Thermal Two1 300 San Diego Gas & Electric Stirling Energy CA CSP 2012 Brightsource CSP Project 1300 Southern California Edison BrightSource Energy CA CSP 2013-2016 Gaskell Sun Tower1 105 Southern California Edison eSolar CA CSP 2012-2013 Stirling Solar Thermal One1 500 Southern California Edison Stirling Energy CA CSP 2012-2016 Beacon Solar Energy Project 250 TBD NextEra Energy CA CSP 2011 Harper Lake Energy Park 250 TBD Harper Lake LLC CA CSP TBD Palmdale Hybrid Plant (nat. gas)3 50 TBD Inland Energy CA CSP 2013 Victorville Hybrid Plant (nat. gas)3 50 TBD Inland Energy CA CSP 2010 California Valley Solar Ranch 250 Pacific Gas & Electric Sun Power CA PV 2010-2012 CalRENEW One 5 Pacific Gas & Electric Cleantech America CA PV 2009 PG&E PV DG Program2 500 Pacific Gas & Electric TBD CA PV 2015 Topaz Solar Farm 550 Pacific Gas & Electric Opti Solar CA PV 2011-2013 SDG&E DG PV Program2 77 San Diego Gas & Electric TBD & Customers CA PV TBA Sunset Reservoir 5 San Francisco PUC Recurrent Energy CA PV 2010 FSE Blythe One1 7.5 Southern California Edison First Solar CA PV 2009 SCE DG PV Program2 250 Southern California Edison First Solar CA PV 2008-2012 Xcel Energy CSP Project 200 Public Service Co. of CO

(Xcel Energy) TBD CO CSP 2015

Xcel Energy CSP Project 25 Public Service Co. of CO (Xcel Energy)

TBD CO CSP 2009-2012

Xcel Energy PV Expansion 17 Public Service Co. of CO (Xcel Energy)

SunPower CO PV 2010

Martin Hybrid Project (nat. gas)3 75 Florida Power & Light TBD FL CSP 2010 continued on next page

Announced Solar Projects (as of May 1st , 2009)


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continued from previous page

Project/Program MW Purchasing Utility Developer State Type Anticipated Completion

DeSoto NextGen Solar Center 25 Florida Power & Light Sun Power FL PV 2009 Space Coast Solar Center 10 Florida Power & Light Sun Power FL PV 2010 JEA PV Project 15 JEA TBD FL PV 2010 Babcock Ranch Project 75 Florida Power & Light TBD FL PV 2010 Lakeland DG PV Program2 24 Lakeland Electric SunEdison FL PV 2009 Florida Solar One 25 Tampa Electric Energy 5.0 FL PV 2011 Kauai Island Coop PV Project 10 Kauai Island Coop PowerWorks HI PV TBD National Grid DG PV Program2 5 National Grid TBD MA PV 2010 WMECO DG PV Program 1,2 6 Western Mass. Electric Co. TBD MA PV 2010 DTE Energy DG PV Program2 20 DTE Energy TBD MI PV TBD Davison County Solar Farm 21.5 Duke Energy - NC Sun Edison NC PV 2010 Duke Energy DG PV Program2 10 Duke Energy - NC Duke Energy - NC NC PV TBA JCP&L DG PV Program2 42 Jersey Central P&L TBD NJ PV 2012 PPL DG PV Program2 5 PPL Energy TBD NJ PV 2009 PSEG Loan Program2 30 PSEG Customers NJ PV 2008 Solar4All DG PV Program2 120 PSEG Miscellaneous NJ PV 2009-2013 New Mexico CSSP1 70 Public Service of New Mexico TBD NM CSP 2011-2012 Cimarron Solar Project 30 Tri-State Generation First Solar NM PV 2010 NV Energy CSP Project 250 NV Energy Solar Millenium NV CSP 2013-2014 Solar Pilot Program2 12 Consolidated Edison TBD NY PV 2011 Brookhaven National Labs 36.9 Long Island Power Authority BP NY PV 2011 LIPA DG PV Program2 13.1 Long Island Power Authority enXco NY PV 2011 Duke Energy PV Project 12.4 Duke Energy - OH TBD OH PV 2012 Austin Energy PV Project 30 Austin Energy Gemini Solar TX PV 2010 CPS Energy Solar Project 100 CPS Energy TBD TX TBD 2010 Total 7521.4 PV: 2379.4 MW CSP: 5042 MW

1. Minimum announced project size; included a range or expansion options. 2. Distributed generation photovoltaic program located at several (or hundreds) of locations, including customer and/or utility sites. The aggregate program number

is listed. 3. Hybrid plants combined with other fuels sources as indicated. Numbers include solar-only portion. 4. Announced as “distributed generation” but the majority will likely be PV and is counted as such in this table.


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Customer-side of the Meter Solar Megawatts – Investor Owned Utilities (IOU)

Customer-side of the Meter Solar Watts per Customer – Investor Owned Utilities (IOU)

Appendix A. BREAKOUT RANKINGS - UTILITY TYPE

Annual (2008) - IOUs Cumulative (Through 2008) - IOUs Rank MW-AC Rank ‘07 MW-AC

#1 Pacific Gas & Electric Co. - CA 74.9 #1 1 Pacific Gas & Electric Co. - CA 219.1 #2 Southern California Edison - CA 30.4 #2 2 Southern California Edison - CA 85.5 #3 San Diego Gas & Electric Co. - CA 15.3 #3 3 San Diego Gas & Electric Co. - CA 48.3 #4 Public Serv. Co. of CO (Xcel Energy) - CO 14.2 #4 6 Public Serv. Co. of CO (Xcel Energy) - CO 22.1 #5 Public Service Electric & Gas Co. - NJ 5.5 #5 5 Public Service Electric & Gas Co. - NJ 13.2 #6 Arizona Public Service Co. - AZ 3.6 #6 7 Arizona Public Service Co. - AZ 6.1 #7 Hawaiian Electric Co. - HI 3.5 #7 N/A* Hawaiian Electric Co. - HI 4.6 #8 Portland General Electric - OR 2.8 #8 11 Portland General Electric - OR 3.7 #9 NSTAR - MA 1.3 #9 N/A* Hawaii Electric Light Co. - HI 3.2

#10 Black Hills Energy - CO 1.2 #10 N/A* NSTAR - MA 2.8

Annual (2008) - IOUs Cumulative (Through 2008) - IOUs Rank Utility Watts-AC Rank ‘07 Utility Watts-AC

#1 Pacific Gas & Electric Co. - CA 14.5 #1 1 Pacific Gas & Electric Co. - CA 42.3 #2 Maui Electric Co. - HI 14.4 #2 N/A* Hawaii Electric Light Co. - HI 40.9 #3 Hawaii Electric Light Co. - HI 13.6 #3 2 San Diego Gas & Electric Co. - CA 35.6 #4 Black Hills Energy - CO 12.5 #4 5 Maui Electric Co. - HI 25.6 #5 Hawaiian Electric Co. - HI 12.0 #5 4 Southern California Edison - CA 17.8 #6 San Diego Gas & Electric Co. - CA 11.3 #6 10 Public Serv. Co. of CO (Xcel Energy) - CO 16.6 #7 Public Serv. Co. of CO (Xcel Energy) - CO 10.7 #7 N/A* Hawaiian Electric Co. - HI 15.5 #8 Southern California Edison - CA 6.3 #8 11 Black Hills Energy - CO 14.7 #9 Portland General Electric - OR 3.5 #9 7 Public Service Electric & Gas Co. - NJ 6.3

#10 Arizona Public Service Co. - AZ 3.2 #10 6 Central Hudson Gas & Electric - NY 6.2



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Customer-side of the Meter Solar Megawatts– Public Power Utilities (PPU)

Customer-side of the Meter Solar Watts per Customer – Public Power Utilities (PPU)

Annual (2008) - PPUs Cumulative (Through 2008) - PPUs Rank MW-AC Rank ‘07 MW-AC

#1 Long Island Power Authority - NY 2.5 #1 1 LA Department of Water & Power - CA 12.8 #2 Sacramento Municipal Utility District - CA 2.0 #2 2 Long Island Power Authority - NY 7.7 #3 LA Department of Water & Power - CA 1.9 #3 3 Sacramento Municipal Utility District - CA 5.0 #4 Imperial Irrigation District - CA 1.7 #4 4 Austin Energy - TX 2.8 #5 Kauai Island Utility Coop. - HI 1.5 #5 6 Kauai Island Utility Coop. - HI 2.2 #6 Palo Alto Utilities - CA 1.3 #6 9 Imperial Irrigation District - CA 2.2 #7 Turlock Irrigation District - CA 0.94 #7 7 Palo Alto Utilities - CA 2.0 #8 Austin Energy - TX 0.897 #8 5 Salt River Project - AZ 1.7 #9 Burbank Water & Power - CA 0.7 #9 10 Roseville Electric - CA 1.3

#10 Salt River Project - AZ 0.6 #10 11 Burbank Water & Power - CA 1.2

Annual (2008) - PPUs Cumulative (Through 2008) - PPUs Rank Watts-AC Rank ‘07 Watts-AC

#1 Kauai Island Utility Coop. - HI 47.1 #1 1 Kauai Island Utility Coop. - HI 70.6 #2 Palo Alto Utilities - CA 44.4 #2 2 Palo Alto Utilities - CA 70.4 #3 Burbank Water & Power - CA 12.9 #3 3 Roseville Electric - CA 26.0 #4 Imperial Irrigation District - CA 11.8 #4 4 Burbank Water & Power - CA 21.3 #5 Roseville Electric - CA 10.2 #5 8 City of Healdsburg - CA 17.8 #6 City of Healdsburg - CA 9.9 #6 12 Lodi Electric Utility - CA 17.1 #7 Turlock Irrigation District - CA 9.6 #7 14 Imperial Irrigation District - CA 15.4 #8 City of Pasadena - CA 8.2 #8 N/A* City of Ashland - OR 12.2 #9 Lodi Electric Utility - CA 7.8 #9 N/A* City of Pasadena - CA 11.9

#10 Holy Cross Energy - CO 5.0 #10 N/A* Holy Cross Energy - CO 10.8



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Utility-side of the Meter Solar Megawatts – Investor Owned Utilities (IOU)

Utility-side of the Meter Solar Watts per Customer– Investor Owned Utilities (IOU)

Annual (2008) ‐ PPUs Cumulative (Through 2008) ‐ PPUs

Rank Utility Watts‐AC Rank Utility Watts‐AC #1 San Francisco PUC ‐ CA 2696.3 #1 San Francisco PUC ‐ CA 1.7 #2 City of Ashland ‐ OR 4.7 #2 Port of Oakland ‐ CA 0.6 #3 City of St. George ‐ UT 3.9 #3 Lodi Electric Utility ‐ CA 0.2 #4 Glendale Water & Power ‐ CA 2.5 #4 Sacramento Municipal Utility District ‐ CA 5.2 #5 Sacramento Municipal Utility District ‐ CA 1.6 #5 City of Ashland ‐ OR 0.1

Annual (2008) ‐ PPUs Cumulative (Through 2008) ‐ PPUs

Rank MW‐AC Rank MW‐AC #1 San Francisco PUC ‐ CA 0.9 #1 Sacramento Municipal Utility District ‐ CA 5.2 #2 Sacramento Municipal Utility District ‐ CA 0.9 #2 San Francisco PUC ‐ CA 1.7 #3 Glendale Water & Power ‐ CA 0.2 #3 Salt River Project ‐ AZ 0.83 #4 City of St. George ‐ UT 0.11 #4 LA Department of Water & Power ‐ CA 0.80 #5 City of Ashland ‐ OR 0.10 #5 Port of Oakland ‐ CA 0.6

Utility-side of the Meter Solar Watts per Customer – Public Power Utilities (PPU)

Utility-side of the Meter Solar Megawatts – Public Power Utilities (PPU)

Annual (2008) ‐ IOUs Cumulative (Through 2008) ‐ IOUs

Rank MW‐AC Rank MW‐AC #1 Pacific Gas & Electric Co. – CA 10 #1 Southern California Edison ‐ CA 356 #2 Southern California Edison ‐ CA 2.0 #2 NV Energy ‐ NV 76.2 #3 Maui Electric Co. ‐ HI 1.2 #3 Pacific Gas & Electric Co. ‐ CA 10.3 #4 Portland General Electric ‐ OR 0.8 #4 Public Serv. Co. of CO (Xcel Energy) ‐ CO 6.4 #5 San Diego Gas & Electric Co. ‐ CA 0.7 #5 Tucson Electric Power ‐ AZ 4.9

Annual (2008) ‐ IOUs Cumulative (Through 2008) ‐ IOUs

Rank Utility Watts‐AC Rank Utility Watts‐AC #1 Maui Electric Co. ‐ HI 18.3 #1 Southern California Edison ‐ CA 74.0 #2 Pacific Gas & Electric Co. ‐ CA 1.9 #2 NV Energy ‐ NV 67.1 #3 Madison Gas & Electric Co. ‐ WI 1.1 #3 Maui Electric Co. ‐ HI 18.3 #4 Portland General Electric ‐ OR 1.0 #4 Tucson Electric Power ‐ AZ 12.4 #5 San Diego Gas & Electric Co. ‐ CA 0.5 #5 Public Serv. Co. of CO (Xcel Energy) ‐ CO 4.8


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Customer-side of the Meter Solar Megawatts – Investor Owned Utilities (IOU)

B. PARTICIPATING UTILITIES

Cumulative data through 2008. “NR” indicates “no rank” for utilities with no solar electric capacity. An asterisk * indicates a tied ranking. indicates SEPA member.

Utility Type Total Customer‐Side Utility‐Side

MW‐AC Watts/Customer MW‐AC Watts‐Customer MW‐AC Watts/Customer

(Rank) (Rank) (Rank) (Rank) (Rank) (Rank)

AEP Texas Central Company (TX) Investor Owned 0.068 (61) 0.091 (77) 0 (NR) 0 (NR) 0.068 (64) 0.091 (80) AEP Texas North Company (TX) Investor Owned 0.021 (73) 0.117 (75) 0 (NR) 0 (NR) 0.021 (77) 0.117 (77)

Alameda Municipal Power (CA) Public Power 0.06 (63) 1.777 (42) 0 (NR) 0 (NR) 0.06 (67) 1.777 (48)

AmerenUE (MO Only) (MO) Investor Owned 0.145 (49) 0.123 (74) 0 (NR) 0 (NR) 0.145 (53) 0.123 (76)

Anaheim Public Utilities (CA) Public Power 0.459 (35) 4.114 (36) 0 (NR) 0 (NR) 0.459 (39) 4.114 (40)

Appalachian Power Company (VA) Investor Owned 0.075 (60) 0.079 (79) 0 (NR) 0 (NR) 0.075 (63) 0.079 (82)

Arizona Public Service Co. (AZ) Investor Owned 6.082 (8) 5.522 (31) 4.493 (7) 4.079 (11) 10.575 (8) 9.601 (25)

Austin Energy (TX) Public Power 2.842 (13) 7.281 (25) 0.106 (20) 0.272 (24) 2.948 (15) 7.553 (29)

Azusa Light and Water (CA) Public Power 0.002 (84) 0.129 (72) 0.008 (28*) 0.515 (20) 0.01 (82) 0.644 (62)

Benton PUD (WA) Public Power 0.007 (80) 0.158 (70) 0 (NR) 0 (NR) 0.007 (84) 0.158 (73)

Black Hills Energy (CO) Investor Owned 1.353 (25) 14.648 (15) 0 (NR) 0 (NR) 1.353 (27) 14.648 (21)

Burbank Water & Power (CA) Public Power 1.083 (27) 21.339 (8) 0.003 (30) 0.063 (32) 1.086 (30) 21.402 (14)

CenterPoint Energy (TX) Investor Owned 0.229 (44) 0.103 (76) 0 (NR) 0 (NR) 0.229 (47) 0.103 (79)

Central Hudson Gas & Electric (NY) Investor Owned 1.818 (21) 6.202 (28) 0 (NR) 0 (NR) 1.818 (24) 6.202 (33)

Central Valley Electric Coop (NM) Public Power 0 (NR) 0 (NR) 0 (NR) 0 (NR) 0 (NR) 0 (NR)

Chelan County PUD (WA) Public Power 0.126 (53) 2.803 (40) 0 (NR) 0 (NR) 0.126 (56) 2.803 (43)

City of Ashland (OR) Public Power 0.131 (51) 12.198 (16) 0.051 (22) 4.734 (10) 0.182 (51) 16.932 (18)

City of Banning (CA) Public Power 0.039 (68) 3.199 (38) 0 (NR) 0 (NR) 0.039 (71) 3.199 (41)

City of Ellensburg (WA) Public Power 0.046 (65) 5.055 (32) 0 (NR) 0 (NR) 0.046 (69) 5.055 (37)

City of Healdsburg (CA) Public Power 0.096 (57) 17.795 (9) 0 (NR) 0 (NR) 0.096 (60) 17.795 (16)

City of Lompoc (CA) Public Power 0.033 (70) 2.194 (41) 0 (NR) 0 (NR) 0.033 (73) 2.194 (45)

City of Pasadena (CA) Public Power 0.733 (33) 11.851 (17) 0 (NR) 0 (NR) 0.733 (34) 11.851 (22)

City of St. George (UT) Public Power 0.039 (67) 1.469 (47) 0 (NR) 0 (NR) 0.039 (70) 1.469 (51)

City of Tallahassee (FL) Public Power 0.184 (46) 1.642 (46) 0.022 (25) 0.2 (27) 0.207 (48) 1.842 (47)

City Water Light & Power (IL) Public Power 0.02 (74) 0.287 (66) 0 (NR) 0 (NR) 0.02 (78) 0.287 (70)

Colorado Springs Utilities (CO) Public Power 0.189 (45) 0.909 (50) 0 (NR) 0 (NR) 0.189 (49) 0.909 (57)

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Columbia Water & Light (MO) Public Power 0.012 (79) 0.276 (67) 0.013 (26) 0.299 (23) 0.025 (75) 0.574 (64) Columbus Southern Power Company (OH) Investor Owned 0.375 (40) 0.504 (60) 0.07 (21*) 0.094 (30) 0.445 (40) 0.598 (63)

Commonwealth Edison Co. (IL) Investor Owned 1.858 (20) 0.496 (61) 0 (NR) 0 (NR) 1.858 (23) 0.496 (66)

Consolidated Edison Co. of NY (NY) Investor Owned 2.351 (15) 0.841 (54) 0 (NR) 0 (NR) 2.351 (19) 0.841 (59)

Cowlitz PUD (WA) Public Power 0.001 (85*) 0.017 (85) 0.001 (32) 0.017 (34) 0.002 (87) 0.033 (87)

Douglas Electric Coop. (OR) Public Power 0.016 (75) 1.679 (45) 0 (NR) 0 (NR) 0.016 (79) 1.679 (50)

Duke Energy Carolinas (NC) Investor Owned 0.293 (42) 0.126 (73) 0 (NR) 0 (NR) 0.293 (44) 0.126 (75)

Duke Energy Indiana (IN) Investor Owned 0.102 (56) 0.132 (71) 0 (NR) 0 (NR) 0.102 (59) 0.132 (74)

Duke Energy Kentucky (KY) Investor Owned 0.005 (81) 0.036 (83) 0 (NR) 0 (NR) 0.005 (85) 0.036 (86)

Duke Energy Ohio (OH) Investor Owned 0.175 (47) 0.26 (68) 0 (NR) 0 (NR) 0.175 (52) 0.26 (71)

Fort Collins Utilities (CO) Public Power 0.042 (66) 0.66 (58) 0.008 (28*) 0.127 (28) 0.05 (68) 0.787 (60)

Gainesville Regional Utilities (FL) Public Power 0.378 (39) 4.158 (35) 0 (NR) 0 (NR) 0.378 (43) 4.158 (39)

Glendale Water & Power (CA) Public Power 0.293 (41) 3.513 (37) 0.209 (18) 2.501 (12) 0.502 (38) 6.014 (34)

Green Cove Springs Electric (FL) Public Power 0.028 (71) 7.423 (24) 0 (NR) 0 (NR) 0.028 (74) 7.423 (30)

Hawaii Electric Light Co. (HI) Investor Owned 3.19 (12) 40.927 (4) 0.004 (29*) 0.055 (33) 3.194 (14) 40.983 (9)

Hawaiian Electric Co. (HI) Investor Owned 4.57 (10) 15.512 (13) 0 (NR) 0 (NR) 4.57 (12) 15.512 (19)

Holy Cross Energy (CO) Public Power 0.569 (34) 10.748 (18) 0 (NR) 0 (NR) 0.569 (37) 10.748 (23)

Imperial Irrigation District (CA) Public Power 2.182 (18) 15.38 (14) 0 (NR) 0 (NR) 2.182 (21) 15.38 (20) Indiana Michigan Power Company (IN) Investor Owned 0.034 (69) 0.058 (81) 0 (NR) 0 (NR) 0.034 (72) 0.058 (84)

Kauai Island Utility Coop. (HI) Public Power 2.23 (16) 70.623 (1) 0 (NR) 0 (NR) 2.23 (20) 70.623 (4)

Kentucky Power Company (KY) Investor Owned 0.001 (85*) 0.005 (86) 0 (NR) 0 (NR) 0.001 (88) 0.005 (88)

Kingsport Power Company (TN) Investor Owned 0 (NR) 0 (NR) 0 (NR) 0 (NR) 0 (NR) 0 (NR) LA Department of Water & Power (CA) Public Power 12.764 (6) 8.811 (20) 0.804 (12) 0.555 (18) 13.568 (6) 9.366 (26)

Lakeland Electric (FL) Public Power 0.092 (58) 0.817 (55) 0.024 (24) 0.217 (26) 0.117 (57) 1.033 (54)

Lodi Electric Utility (CA) Public Power 0.432 (37) 17.067 (11) 0.241 (17) 9.539 (7) 0.673 (35) 26.606 (11)




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Long Island Power Authority (NY) Public Power 7.712 (7) 6.963 (26) 0 (NR) 0 (NR) 7.712 (10) 6.963 (31) Longmont Power & Communications (CO) Public Power 0.015 (76) 0.43 (62) 0 (NR) 0 (NR) 0.015 (80) 0.43 (67)

Madison Gas & Electric Co. (WI) Investor Owned 0.116 (54) 0.843 (53) 0.171 (19) 1.246 (14) 0.287 (45) 2.089 (46)

Maui Electric Co. (HI) Investor Owned 1.68 (22) 25.567 (7) 1.2 (9) 18.262 (5) 2.88 (16) 43.829 (8)

Minnesota Power (MN) Investor Owned 0.127 (52) 0.906 (51) 0 (NR) 0 (NR) 0.127 (55) 0.906 (58)

Mt. Wheeler Power (NV) Public Power 0 (NR) 0 (NR) 0 (NR) 0 (NR) 0 (NR) 0 (NR)

Muscatine Power & Water (IA) Public Power 0.004 (82) 0.386 (64) 0.004 (29*) 0.386 (21) 0.009 (83) 0.772 (61)

NSTAR (MA) Investor Owned 2.825 (14) 3.127 (39) 0.002 (31) 0.002 (35) 2.827 (17) 3.129 (42)

NV Energy (NV) Investor Owned 1.651 (24) 1.454 (48) 76.216 (2) 67.129 (4) 77.867 (3) 68.583 (6)

Ohio Power Company (OH) Investor Owned 0.013 (77) 0.018 (84) 0.07 (21*) 0.098 (29) 0.083 (61) 0.116 (78)

Orcas Power & Light Coop. (WA) Public Power 0.08 (59) 5.834 (29) 0 (NR) 0 (NR) 0.08 (62) 5.834 (35)

Orlando Utilities Commission (FL) Public Power 0.146 (48) 0.774 (56) 0.042 (23) 0.221 (25) 0.187 (50) 0.995 (56)

Pacific Gas & Electric Co. (CA) Investor Owned 219.118 (1) 42.307 (3) 10.334 (3) 1.995 (13) 229.452 (2) 44.302 (7)

Palo Alto Utilities (CA) Public Power 2.018 (19) 70.355 (2) 0 (NR) 0 (NR) 2.018 (22) 70.355 (5)

PNM (NM) Investor Owned 0.831 (30) 1.698 (44) 0 (NR) 0 (NR) 0.831 (32) 1.698 (49)

Port of Oakland (CA) Public Power 0 (NR) 0 (NR) 0.598 (14) 3414.686 (2) 0.598 (36) 3414.686 (2)

Portland General Electric (OR) Investor Owned 3.658 (11) 4.572 (34) 0.766 (13) 0.958 (15) 4.425 (13) 5.529 (36) Public Serv. Co. of CO (Xcel Energy) (CO) Investor Owned 22.064 (4) 16.603 (12) 6.4 (4) 4.816 (9) 28.464 (5) 21.419 (13) Public Service Company of Oklahoma (OK) Investor Owned 0.022 (72) 0.041 (82) 0 (NR) 0 (NR) 0.022 (76) 0.041 (85) Public Service Electric & Gas Co. (NJ) Investor Owned 13.187 (5) 6.285 (27) 0 (NR) 0 (NR) 13.187 (7) 6.285 (32) Public Works Commission - Fayetteville (NC) Public Power 0 (NR) 0 (NR) 0 (NR) 0 (NR) 0 (NR) 0 (NR)

Puget Sound Energy (WA) Investor Owned 0.917 (29) 0.874 (52) 0.36 (16) 0.343 (22) 1.277 (29) 1.218 (53)

Riverside Public Utilities (CA) Public Power 0.82 (31) 7.779 (23) 0 (NR) 0 (NR) 0.82 (33) 7.779 (28)

Roseville Electric (CA) Public Power 1.312 (26) 25.986 (6) 0 (NR) 0 (NR) 1.312 (28) 25.986 (12) Sacramento Municipal Utility District (CA) Public Power 4.96 (9) 8.436 (22) 5.196 (5) 8.837 (8) 10.156 (9) 17.273 (17)




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Salt River Project (AZ) Public Power 1.652 (23) 1.766 (43) 0.831 (11) 0.889 (16) 2.483 (18) 2.655 (44) San Diego Gas & Electric Co. (CA) Investor Owned 48.286 (3) 35.632 (5) 0.967 (10) 0.714 (17) 49.253 (4) 36.345 (10)

San Francisco PUC (CA) Public Power 0 (NR) 0 (NR) 1.654 (8) 4739.255 (1) 1.654 (25) 4739.255 (1)

Santee Cooper (SC) Public Power 0.051 (64) 0.313 (65) 0.013 (27) 0.079 (31) 0.063 (65) 0.393 (69)

Seattle City Light (WA) Public Power 0.382 (38) 0.998 (49) 0 (NR) 0 (NR) 0.382 (42) 0.998 (55) Silicon Valley Power/City of Santa Clara (CA) Public Power 0.444 (36) 8.805 (21) 0 (NR) 0 (NR) 0.444 (41) 8.805 (27)

Snohomish PUD #1 (WA) Public Power 0.133 (50) 0.422 (63) 0 (NR) 0 (NR) 0.133 (54) 0.422 (68)

Southern California Edison (CA) Investor Owned 85.466 (2) 17.76 (10) 355.952 (1) 73.967 (3) 441.418 (1) 91.726 (3) Southwestern Electric Power Company (AR) Investor Owned 0.106 (55) 0.229 (69) 0 (NR) 0 (NR) 0.106 (58) 0.229 (72)

Truckee Donner PUD (CA) Public Power 0.063 (62) 4.844 (33) 0 (NR) 0 (NR) 0.063 (66) 4.844 (38)

Tucson Electric Power (AZ) Investor Owned 2.209 (17) 5.592 (30) 4.912 (6) 12.433 (6) 7.121 (11) 18.025 (15)

Turlock Irrigation District (CA) Public Power 1.002 (28) 10.179 (19) 0 (NR) 0 (NR) 1.002 (31) 10.179 (24)

Vectren Corporation (IN) Investor Owned 0.012 (78) 0.084 (78) 0 (NR) 0 (NR) 0.012 (81) 0.084 (81)

We Energies (WI) Investor Owned 0.817 (32) 0.758 (57) 0.589 (15) 0.547 (19) 1.407 (26) 1.305 (52)

Wheeling Power Company (WV) Investor Owned 0.003 (83) 0.077 (80) 0 (NR) 0 (NR) 0.003 (86) 0.077 (83) Wisconsin Public Service Corporation (WI) Investor Owned 0.236 (43) 0.558 (59) 0 (NR) 0 (NR) 0.236 (46) 0.558 (65)



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C. SURVEY QUESTIONS The SEPA 2008 Utility Solar Electricity Survey questions can be downloaded here: http://www.solarelectricpower.org/docs/Appendix.SurveyMonkeySurvey.pdf

http://www.solarelectricpower.org/docs/Appendix.SurveyMonkeySurvey.pdf


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PV Capacity Methods (2008) This report catalogs the statistical methods used to measure the relationship between peak electricity and solar PV output; compares all the methods in three case studies for three electric utilities; and documents the results from a 2007 workshop on the topic with utilities, industry and other stakeholders.

Utility Solar Business Models (2008) While renewable market requirements are driving current solar investment, business opportunities are emerging for utilities to become involved in the solar value chain. This report highlights utility solar business models that provide value-added solutions for utilities, customers, and the solar industry. Solar Fact Finding Mission to Germany: Report for Utility Decision Makers (2008) Thirty-five U.S. utility decision makers traveled with SEPA to Germany in June 2008 to examine how they can emulate the success of German utilities in integrating large quantities of solar electricity into a national utility grid without creating transmission bottlenecks, system quality distortions, or scheduling issues. This report summarizes the findings for other US utilities.

Top Ten Utility Solar Integration Rankings (2008) In early 2008, SEPA conducted a nationwide survey of utilities to find out how much solar electricity was integrated into their service territories through the end of 2007. The resulting report, which will be repeated annually, crowns the most solar integrated utilities in the United States and discusses the number of announced solar projects to date.

Electric Utilities and Solar: A Market Review (2008) This utility solar market report, which includes the solar integration rankings, discusses future solar market development issues that have arisen in 2007 and 2008, and their implications for utility involvement in solar.

Utility Solar Procurement (2009) This report identified best practices for traditional utility solar procurement (RFPs/PPAs) and innovative new acquisition methods that may present cost or efficiency solutions for both utilities and the solar industry.

Utility Solar Tax Manual (2009) In 2008, Congress extended the federal solar investment tax credit for eight years and removed the utility exemption, allowing regulated investor-owned utilities to utilize the credit. This manual

provides detailed explanations of the tax provisions related to the bill, as well as exploring other tax issues such as Clean Renewable Energy Bonds, and unique business tax structures and issues. Decoupling Utility Profits from Sales: Issues for the Photovoltaic Industry (2009) The reduced sale of electricity creates an inherent problem for electric utilities in maintaining long-term operating revenue, especially as the solar industry expands. Decoupling is a regulatory policy option that can change the way utilities recover revenues to adjust this disincentive. This decoupling white paper introduces the concept into the solar community, explaining what decoupling is, and defining the different types. It includes a case study showing how solar market development in the future might affect utility rates under decoupling. Distributed Photovoltaic Generation for Regulated Utilities (2009) This analysis looks at both the regulatory and practical issues surrounding the installation of utility-owned distributed photovoltaics by investor-owned utilities.

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SEPA Research Report Summaries

Documents

Second Annual Top Ten Utility Solar Integration Rankings · solar programs and projects, so results are not necessarily representative of a typical utility in ... sources, such as