AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
DEPARTMENT: Power Enterprise
AGENDA NUMBER: 9b
MEETING DATE: October 13, 2026
Calendar: Consent Calendar
Project Manager: Dan Willis
Approve Execution of an Attestation of Veracity for Hetch Hetchy Power’s 2025 Power Source Disclosure Report and its Submission to the California Energy Commission
1 California Renewable Portfolio Standard-eligible renewable resources include wind, solar, biomass and biowaste, small hydroelectric and geothermal facilities.
Summary of Proposed
Commission Action:
Approve execution and submission of an attestation of veracity for Hetch Hetchy Power’s 2025 Power Source Disclosure Report and approve final submission of the 2025 Power Source Disclosure Report to the California Energy Commission.
Background: Under Public Utilities Code Sections 398.4 and 398.5, retail suppliers of electricity must annually: (1) report to the California Energy Commission (Energy Commission) the type of generation resources (e.g., hydroelectric, solar, wind, and geothermal) used to serve their end use customers in the form of the Power Source Disclosure Report; and (2) provide this same information, in the form of a Power Content Label, to their customers.
The Power Source Disclosure Report generates the Power Content Label, which provides customers with detailed information about the energy sources used by Hetch Hetchy Power and the
greenhouse gas emissions associated with that energy. This information help s consumers understand where their electricity comes from and make informed decisions about their energy consumption. Under Energy Commission regulations, the San Francisco Public Utilities Commission ( SFPUC) can attest to the veracity of the Power Source Disclosure Report for all retail products offered by Hetch Hetchy Power.
Hetch Hetchy Power offers two products which require this reporting: Hetch Hetchy Power and Hetch Hetchy Power Premium.
The 2025 Power Source Disclosure Report demonstrates that in 2025, Hetch Hetchy Power provided its customers with an energy product that was 100 percent greenhouse gas-free, sourced almost entirely from the Hetch Hetchy hydroelectric system. Hetch Hetchy Power Premium provided its customers with an energy product that was also 100 percent greenhouse gas -free, while also meeting California’s Renewable Portfolio Standard 1 requirements. Hetch Hetchy Power and Hetch Hetchy Power Premium both had a
Agenda Title: Approve Execution of an Attestation of Veracity for Hetch Hetchy Power’s 2025 Power Source Disclosure Report and its Submission to the California Energy Commission
Commission Meeting Date: October 13, 2026
2 A very small proportion of this Western Area Power Administration power (184 MWh) also met the definition of California Renewable Portfolio Standard-eligible energy. greenhouse gas emissions intensity of 0 pounds of carbon dioxide equivalent (CO2e) per megawatt-hour (MWh) of generation.
As shown in the attached Power Source Disclosure Report for calendar year 2025, Hetch Hetchy Power provided its default service customers with 100 percent greenhouse gas -free hydroelectric energy. Ninety -nine percent of this energy was generated by the Het ch Hetchy system and the remaining one percent from hydroelectric facilities of the Western Area Power Administration, which is the source of the electric energy Hetch Hetchy Power provides to Treasure Island. 2 Hetch Hetchy Power also generated a small amount of surplus energy above its retail needs from its Kirkwood generating units, solar facilities, and the Southeast Cogeneration power plant. This energy, all of which meets California’s Renewable Portfolio St andard eligibility requirements, was sold with Hetch Hetchy Power keeping the associated renewable energy credits. These credits can be used for Hetch Hetchy Power to meet its future Renewable Portfolio Standard compliance obligations as needed.
In calendar year 2025, Hetch Hetchy Power Premium provided its customers with 100 percent greenhouse gas -free hydroelectric energy which is also Renewable Portfolio Standard -eligible.
Premium Service provides customers with an electricity portfolio that meets the requirements of the California Air Resources Board’s Low Carbon Fuel Standard program. This allows the San Francisco Municipal Transportation Agency, the San Francisco International Airport, and the Port of San Franc isco to receive additional credits under the program , which rewards entities using clean energy rather than fossil fuels for transportation-related uses.
After retail sellers submit their Power Source Disclosure Reports to the Energy Commission, the agency then compiles them to determine the statewide mix of electricity resources used to meet California’s electricity demand. The Energy Commission then generates Power Content Labels and provides them to retail sellers, using the data contained in their Power Source Disclosure Reports.
Hetch Hetchy Power will disclose the electricity sources of its sales to customers for 2025 using the Power Content Label, a copy of which is attached to this agenda item. The Power Content Label shows, in tabular form, the electricity sources for Hetch Hetchy Power’s sales and provides additional descriptive information to improve readability and understanding for customers.
Agenda Title: Approve Execution of an Attestation of Veracity for Hetch Hetchy Power’s 2025 Power Source Disclosure Report and its Submission to the California Energy Commission
Commission Meeting Date: October 13, 2026
3 At the time this item was prepared, statewide data for 2025 was published while data for PG&E was not publicly available.
4 According to the Power Source Disclosure Program Regulations updated in 2025, “‘Loss -adjusted load’ means the total amount of electricity, measured at the utility-scale generation source, that a retail supplier requires in order to provide for retail sales after electrical losses in transmission and distribution. The total amount of electricity to provide for retail sales shall include self-consumption and other electricity uses serving retail consumers.”
5 Due to the cancellation of the September 22, 2026 Commission meeting, the CEC agreed to accommodate a slight delay to this requirement. Hetch Hetchy Power will post the Power Content Label immediately following approval of this item.
The Power Source Disclosure Report also calculates greenhouse gas emissions intensity (pounds CO2e/MWh) for each of the reporting retail seller’s electricity products included on the Power Content Label. Both Hetch Hetchy Power and Hetch Hetchy Power Premium had a greenhouse gas emissions intensity of 0 pounds CO2e/MWh in 2025. To put this number in context, in 202 5, California’s statewide emissions intensity was 3 84 pounds CO2e/MWh and, in 2024,3 PG&E’s default product was 16 pounds CO2e/MWh.
In addition to the results by portfolio offering, starting with 2025, the Power Content Label presents a new column showing the types of electricity generating resources and emissions intensity associated with serving each electricity provider’s “Total Loss-Adjusted Load.”4 This column combines the retail sales for each portfolio and includes electric line losses and other uses of electricity the Energy Commission views as required to serve retail sales. Hetch Hetchy Power assigned additional hydroelectric energy to these uses such that its Total Loss -Adjusted Load also had a greenhouse gas emissions intensity of 0 pounds CO2e/MWh in 2025.
Under Energy Commission regulations, Hetch Hetchy Power must post its Power Content Label on our website by October 1, 5 2026, and provide all customers with a copy of the same either as a physical mailer or an electronic message (only for those customers billed electronically) by December 31, 2026.
In addition, under Energy Commission regulations, Hetch Hetchy Power must either have its governing body ( the SFPUC
Commission) attest to the veracity of its Power Source Disclosure Report or have it verified by a qualified third party. The Commission has attested to the veracity of Hetch Hetchy Power’s Power Source Disclosure Report since Hetch Hetchy Power started its reporting in 2011.
The attached resolution attests to the veracity of the Power Source Disclosure Report and approves its Submission to the Energy Commission. The attestation of veracity is to be executed by the Agenda Title: Approve Execution of an Attestation of Veracity for Hetch Hetchy Power’s 2025 Power Source Disclosure Report and its Submission to the California Energy Commission
Commission Meeting Date: October 13, 2026
Assistant General Manager for Power or their designee, who supervised the preparation of the Power Source Disclosure Report.
Result of Inaction: If the Commission does not approve submission of an attestation of veracity, the SFPUC will be required to incur the time and cost of having the Power Source Disclosure Report independently verified and may incur fines if the verification is not completed.
Recommendation: SFPUC staff recommends that the Commission adopt the attached resolution.
Attachment(s): 1. Hetch Hetchy Power 2025 Power Source Disclosure Report
2. Hetch Hetchy Power 2025 Power Content Label
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO. __________________
WHEREAS, California Public Utilities Code Sections 398.4 and 398.5 require “retail suppliers of electricity products” to disclose to their end use customers annually the electricity sources for their sales to those customers; and
WHEREAS, The San Francisco Public Utilities Commission (SFPUC) is required to report this information to the California Energy Commission through submission of a Power Source Disclosure Report and to its customers through a Power Content Labe l; and
WHEREAS, SFPUC staff developed the Power Source Disclosure Report in conformance with the California Energy Commission’s regulations; and
WHEREAS, SFPUC staff prepared its 2025 Power Source Disclosure Report for Hetch Hetchy Power and submitted it to the California Energy Commission on May 27, 2026 (revised July 16, 2026); and
WHEREAS, The Power Source Disclosure Report shows that for calendar year 2025, Hetch Hetchy Power met its default service customers’ energy needs with 100 percent greenhouse gas-free electric energy and its Hetch Hetchy Premium customers’ needs with an energy portfolio that was also 100 percent greenhouse gas-free as well as being 100 percent eligible renewable energy resources under California’s Renewable Portfolio Standard, and a greenhouse gas emissions intensity of 0 pounds of CO2e/MWh; and
WHEREAS, The California Energy Commission has prepared a Power Content Label based on the Power Source Disclosure Report, and SFPUC will post this Power Content Label to its website upon Commission approval of this item and distribute it to Hetch Hetchy Power customers as a physical mailer or as an electronic message for customers billed electronically before December 31, 2026; and
WHEREAS, California Energy Commission regulation allows public agencies such as the SFPUC to have their governing boards attest to the veracity of their Power Source Disclosure Report in lieu of having the report independently verified; and
WHEREAS, The Assistant General Manager for Power or their designee has signed an attestation of the veracity of the Power Source Disclosure Report ; now, therefore, be it,
RESOLVED, That the Commission approves execution and submission of the attestation of veracity for Hetch Hetchy Power’s 2025 Power Source Disclosure Report and approves the final submission of the 2025 Power Source Disclosure Report to the California Energy Commission.
I hereby certify that the foregoing resolution was adopted by the San Francisco Public Utilities Commission at its meeting of October 13, 2026.
__________________________________
Director of Commission Affairs
San Francisco Public Utilities Commission
2025 POWER SOURCE DISCLOSURE ANNUAL REPORT
For the Year Ending December 31, 2025
GENERAL INSTRUCTIONS
Retail suppliers are required to use the posted template and are not allowed to make edits to this format.
Please complete the Retail Supplier Name and contact information in column B below.
RETAIL SUPPLIER NAME San Francisco Public Utilities Commission - Hetch Hetchy Power
CONTACT INFORMATION
NAME Dan Willis
TITLE Utility Specialist - Regulatory Affairs
MAILING ADDRESS 525 Golden Gate Ave., 7th Floor
CITY, STATE, ZIP San Francisco, CA, 94102
PHONE 628-231-9879
EMAIL [email protected]
WEBSITE URL FOR PCL POSTING https://www.sfpuc.gov/about-us/our-systems/hetch-hetchy-power-system Submit the Annual Report and signed Attestation in PDF format with the Excel version of the Annual Report to [email protected].
California Energy Commission's website.
If you have questions, contact Power Source Disclosure (PSD) staff at [email protected] or (916) 639-0573.
Version: April 2026
NOTE: Information submitted in this report is not automatically held confidential. If your company wishes the information submitted to be considered confidential an authorized representative must submit an application for confidential designation (CEC-13), which can be found on the PSD Intro 1
Resource and GHG Allocations
*indicates GHG figures are preliminary until the calculation of the annual unspecified power emissions factor Power Sources and Emissions Hetch Hetchy Power
Hetch Hetchy
Premium
Electricity Portfolio
Name 3
Electricity Portfolio
Name 4
Electricity Portfolio
Name 5
Electricity Portfolio
Name 6 Other End Uses Losses
Retail Sales, Other End Uses,
Losses (MWh) 887,278 84,140 - - - - - 44,422 Total Net Specified (MWh) 887,278 84,140 - - - - - 44,422 Biomass & Biogas - - - - - - - - Geothermal - - - - - - - - Eligible Hydroelectric 184 84,140 - - - - - - Solar - - - - - - - - Wind - - - - - - - - Large Hydroelectric 887,094 - - - - - - 44,422 Nuclear - - - - - - - - Emerging Technologies - - - - - - - - Other - - - - - - - - Natural Gas - - - - - - - - Coal & Petroleum - - - - - - - - Unspecified Power - ACS - - - - - - - - Unspecified Power - Direct
Import - - - - - - - - Unspecified Power - Spot Market - - - - - - - - Unspecified Power - Total - - - - - - - - Unspecified GHGs (MT CO2e)* - - - - - - - - Specified GHGs (MT CO2e) - - - - - - - - Total GHGs (MT CO2e)* - - - - - - - - Checks Status GHG Emissions Intensity (MT
CO2e/MWh)* - - #DIV/0! #DIV/0! #DIV/0! #DIV/0! - - Portfolio and other
end use allocations COMPLETE
PCL Emissions Intensity (lbs
CO2e/MWh)*
0 0 #DIV/0! #DIV/0! #DIV/0! #DIV/0! --
Specified resources
allocated COMPLETE
Retail Sales, Other End Uses,
Specified Losses 887,278 84,140 44,422 Coal allocated COMPLETE Unmet Load (MWh) - - - - - - - - Oversupply not negative COMPLETE
Annual Data 2
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60
61 62
63 64
65 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 84
AB C D E F G
Facility Name Fuel Type State or
Province
WREGIS ID of REC
Source
RPS ID of REC
Source
EIA ID of Delivered
Energy Loss Factor
Dion R. Holm Powerhouse Unit #1 Large Hydroelectric CA 380 0.044 Dion R. Holm Powerhouse Unit #2 Large Hydroelectric CA 380 0.044 Moccasin Powerhouse Unit #1 Large Hydroelectric CA 381 0.044 Moccasin Powerhouse Unit #2 Large Hydroelectric CA 381 0.044 R. C. Kirkwood Powerhouse Unit #1 Large Hydroelectric CA 382 0.044 R. C. Kirkwood Powerhouse Unit #2 Large Hydroelectric CA 382 0.044 R. C. Kirkwood Powerhouse Unit #3 Lar ge Hydroelectric CA 382 0.044 R. C. Kirkwood Powerhouse Unit #1 Eligible Hydroelectric CA W2827 62549A 382 0.044 R. C. Kirkwood Powerhouse Unit #2 Eligible Hydroelectric CA W2828 62550A 382 0.044 R. C. Kirkwood Powerhouse Unit #3 Eligible Hydroelectric CA W2829 62551A 382 0.044 Shasta Powerhouse Large Hydroelectric CA 445 0.044
Keswick Powerhouse Large Hydroelectric CA 443 0.044
Trinity Powerhouse Large Hydroelectric CA 451 0.044
J.F. Carr Powerhouse Large Hydroelectric CA 442 0.044
Spring Creek Powerhouse Large Hydroelectric CA 450 0.044 Folsom Powerhouse Large Hydroelectric CA 441 0.044
New Melones Powerhouse Large Hydroelectric CA 6158 0.044 O'Neil Plant Large Hydroelectric CA 446 0.044
San Luis Plant Large Hydroelectric CA 448 0.044
Nimbus Power Plant (WAPA) Eligib le Hydroelectric CA W1161 61045A 444 0.044 Lewiston Power Plant (WAPA) Eligible Hydroelectric CA W1108 61044A 977 0.044 Stampede Power Plant (WAPA) Eligible Hy droelectric CA W1177 61046A 7066 0.044 SF Southeast Cogen Plant Biomass & Biogas CA W2689 62039A 57971 0.044 Sunset Reservoir North Basin solar Solar CA W1681 60793A 57559 0.044 49 South Van Ness Solar CA W11282 64811A P373 0.044
Alvarado Elem School solar Solar CA W3475 62323A P283 0.044 Burton High School solar Solar CA W9303 64685A P292 0.044 Cesar Chavez Elementary School solar Solar CA W4896 63214A P291 0.044 Chinatown Public Health solar Solar CA W2681 62087A P282 0.044 Chinatown Public Library solar Solar CA W2686 62222A P280 0.044 City Distribution Division solar Solar CA W2678 62215A P278 0.044 City Hall solar Solar CA W4932 63233A P290 0.044
Davies Symphony Hall (Phase 1) solar Solar CA W4078 62769A P285 0.044 Davies Symphony Hall (Phase 2) solar Solar CA W4078 62769A P285 0.044 Downtown High School solar Solar CA W4888 63215A P288 0.044 Marina Middle School Solar Solar CA W15506 65172A P408 0.044 Maxine Hall Health Center solar Solar CA W2685 62221A P279 0.044 Mission Bay School Solar Solar CA W25416 66195A P431 0.044 Moscone Convention Center – Es
planade A solar Solar CA W2682 62218A P275 0.044 Moscone Convention Center – Esplanade B solar Solar CA W2683 62219A P276 0.044 Moscone Convention Center – South Lobby solar Solar CA W2684 62220A P277 0.044 Muni Ways & Structures Facility solar Solar CA W4077 62770A P287 0.044 Muni Woods Coach solar Solar CA W2680 62217A P281 0.044 North Beach Library solar Solar CA W6988 63886A P286 0.044 NorthPoint Water Treatment Plant solar Solar CA W2679 62216A P274 0.044 Alameda Creek Watershed Center Solar Solar CA W15065 65512A P409 0.044 San Francisco Police Academy Solar Carport Solar CA W11071 64781A P372 0.044 San Francisco International Airport solar Solar CA W2673 62210A P272 0.044 SFPUC HQ solar Solar CA W4933 63234A P284 0.044
Southeast Health Center solar Solar CA W14619 65513A P344 0.044 Southeast Water Treatment Plant solar Solar CA W2672 62209A P273 0.044 Starr King Elementary School solar Solar CA W9270 64686A P293 0.044 Thurgood Marshall High School solar Solar CA W4889 63216A P289 0.044 Visitacion Valley Middle School Solar Solar CA W12568 65160A P374 0.044 Opera House solar Solar CA W13645 65541A P376 0.044
Moccasin Lowhead Eligible Hydroelectric CA W2688 62010A 751 0.044 190 9th St. Sola
r Other CA W24709 66439A P432 0.044
Annual Data 3
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60
61 62
63 64
65 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 84
A
Facility Name
Dion R. Holm Powerhouse Unit #1
Dion R. Holm Powerhouse Unit #2
Moccasin Powerhouse Unit #1
Moccasin Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #1
R. C. Kirkwood Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #3
R. C. Kirkwood Powerhouse Unit #1
R. C. Kirkwood Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #3
Shasta Powerhouse
Keswick Powerhouse
Trinity Powerhouse
J.F. Carr Powerhouse
Spring Creek Powerhouse
Folsom Powerhouse
New Melones Powerhouse
O'Neil Plant
San Luis Plant
Nimbus Power Plant (WAPA)
Lewiston Power Plant (WAPA)
Stampede Power Plant (WAPA)
SF Southeast Cogen Plant
Sunset Reservoir North Basin solar
49 South Van Ness
Alvarado Elem School solar
Burton High School solar
Cesar Chavez Elementary School solar
Chinatown Public Health solar
Chinatown Public Library solar
City Distribution Division solar
City Hall solar
Davies Symphony Hall (Phase 1) solar
Davies Symphony Hall (Phase 2) solar
Downtown High School solar
Marina Middle School Solar
Maxine Hall Health Center solar
Mission Bay School Solar
Moscone Convention Center – Es
planade A solar
Moscone Convention Center – Esplanade B solar
Moscone Convention Center – South Lobby solar
Muni Ways & Structures Facility solar
Muni Woods Coach solar
North Beach Library solar
NorthPoint Water Treatment Plant solar
Alameda Creek Watershed Center Solar
San Francisco Police Academy Solar Carport
San Francisco International Airport solar
SFPUC HQ solar
Southeast Health Center solar
Southeast Water Treatment Plant solar
Starr King Elementary School solar
Thurgood Marshall High School solar
Visitacion Valley Middle School Solar
Opera House solar
Moccasin Lowhead
190 9th St. Sola
r
HI J K L M N
Gross MWhs
Procured
Specified
Resales MWhs
Net MWhs
Procured
Firmed & Shaped
Resource?
Eligible for Firmed &
Shaped
Grandfathering?
Specified Losses
Covered by Seller?
Total EF
(MT CO
2e/MWh)
299,572 20,000 279,572 0.0000 279,477 279,477 0.0000
22,192 22,192 0.0000
254,364 254,364 0.0000
110,875 110,875 0.0000
92,217 92,217 0.0000
115,747 115,747 0.0000
42,298 42,298 0.0000
41,842 41,842 0.0000
- 0.0000
5,713 5,713 0.0000
974 974 0.0000 1,365 1,365 0.0000
773 773 0.0000 917 917 0.0000 1,202 1,202 0.0000
679 679 0.0000 6 6 0.0000 292 292 0.0000 159 159 0.0000 5 5 0.0000 20 20 0.0000 320 320 0.4859 6,153 100 6,053 0.0000 99 99 0.0000 71 71 0.0000 208 208 0.0000 49 49 0.0000 29 29 0.0000 14 14 0.0000 118 118 0.0000 116 116 0.0000 227 227 0.0000 38 38 0.0000 65 65 0.0000 77 77 0.0000 30 30 0.0000 2 2 0.0000 - - 0.0000
- - 0.0000
318 318 0.0000 13 13 0.0000 128 128 0.0000 18 18 0.0000 299 299 0.0000 95 95 0.0000 171 171 0.0000 - - 0.0000
152 152 0.0000 103 103 0.0000 201 201 0.0000 47 47 0.0000 109 109 0.0000 143 143 0.0000 110 110 0.0000 3,337 3,337 0.0000
100 100 0.0000 Annual Data 4
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60
61 62
63 64
65 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 84
A
Facility Name
Dion R. Holm Powerhouse Unit #1
Dion R. Holm Powerhouse Unit #2
Moccasin Powerhouse Unit #1
Moccasin Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #1
R. C. Kirkwood Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #3
R. C. Kirkwood Powerhouse Unit #1
R. C. Kirkwood Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #3
Shasta Powerhouse
Keswick Powerhouse
Trinity Powerhouse
J.F. Carr Powerhouse
Spring Creek Powerhouse
Folsom Powerhouse
New Melones Powerhouse
O'Neil Plant
San Luis Plant
Nimbus Power Plant (WAPA)
Lewiston Power Plant (WAPA)
Stampede Power Plant (WAPA)
SF Southeast Cogen Plant
Sunset Reservoir North Basin solar
49 South Van Ness
Alvarado Elem School solar
Burton High School solar
Cesar Chavez Elementary School solar
Chinatown Public Health solar
Chinatown Public Library solar
City Distribution Division solar
City Hall solar
Davies Symphony Hall (Phase 1) solar
Davies Symphony Hall (Phase 2) solar
Downtown High School solar
Marina Middle School Solar
Maxine Hall Health Center solar
Mission Bay School Solar
Moscone Convention Center – Es
planade A solar
Moscone Convention Center – Esplanade B solar
Moscone Convention Center – South Lobby solar
Muni Ways & Structures Facility solar
Muni Woods Coach solar
North Beach Library solar
NorthPoint Water Treatment Plant solar
Alameda Creek Watershed Center Solar
San Francisco Police Academy Solar Carport
San Francisco International Airport solar
SFPUC HQ solar
Southeast Health Center solar
Southeast Water Treatment Plant solar
Starr King Elementary School solar
Thurgood Marshall High School solar
Visitacion Valley Middle School Solar
Opera House solar
Moccasin Lowhead
190 9th St. Sola
r
OP Q R S T
Total GHGs PCL EF
(MT CO2e/MWh) Hetch Hetchy Power Hetch Hetchy
Premium
Electricity Portfolio
Name 3
Electricity Portfolio
Name 4
- 0.0000 279,572
- 0.0000 279,477
- 0.0000 22,192
- 0.0000 254,364
- 0.0000
- 0.0000
- 0.0000 39,568
- 0.0000 42,298
- 0.0000 41,842
- 0.0000
- 0.0000 5,713
- 0.0000 974
- 0.0000 1,365
- 0.0000 773
- 0.0000 917
- 0.0000 1,202
- 0.0000 679
- 0.0000 6
- 0.0000 292
- 0.0000 159
- 0.0000 5
- 0.0000 20
155 0.0025
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
- 0.0000
Annual Data 5
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60
61 62
63 64
65 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 84
A
Facility Name
Dion R. Holm Powerhouse Unit #1
Dion R. Holm Powerhouse Unit #2
Moccasin Powerhouse Unit #1
Moccasin Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #1
R. C. Kirkwood Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #3
R. C. Kirkwood Powerhouse Unit #1
R. C. Kirkwood Powerhouse Unit #2
R. C. Kirkwood Powerhouse Unit #3
Shasta Powerhouse
Keswick Powerhouse
Trinity Powerhouse
J.F. Carr Powerhouse
Spring Creek Powerhouse
Folsom Powerhouse
New Melones Powerhouse
O'Neil Plant
San Luis Plant
Nimbus Power Plant (WAPA)
Lewiston Power Plant (WAPA)
Stampede Power Plant (WAPA)
SF Southeast Cogen Plant
Sunset Reservoir North Basin solar
49 South Van Ness
Alvarado Elem School solar
Burton High School solar
Cesar Chavez Elementary School solar
Chinatown Public Health solar
Chinatown Public Library solar
City Distribution Division solar
City Hall solar
Davies Symphony Hall (Phase 1) solar
Davies Symphony Hall (Phase 2) solar
Downtown High School solar
Marina Middle School Solar
Maxine Hall Health Center solar
Mission Bay School Solar
Moscone Convention Center – Es
planade A solar
Moscone Convention Center – Esplanade B solar
Moscone Convention Center – South Lobby solar
Muni Ways & Structures Facility solar
Muni Woods Coach solar
North Beach Library solar
NorthPoint Water Treatment Plant solar
Alameda Creek Watershed Center Solar
San Francisco Police Academy Solar Carport
San Francisco International Airport solar
SFPUC HQ solar
Southeast Health Center solar
Southeast Water Treatment Plant solar
Starr King Elementary School solar
Thurgood Marshall High School solar
Visitacion Valley Middle School Solar
Opera House solar
Moccasin Lowhead
190 9th St. Sola
r
UV W X Y A B
Electricity Portfolio
Name 5
Electricity Portfolio
Name 6 Other End Uses
Specified
Procurement
Covering Losses
Total Specified
Losses Remainder/Oversupply
12,225 -
12,221 -
970 -
11,123 -
44,422 1,942 66,453 - 92,217
1,730 76,179
1,850 -
1,830 -
- -
250 -
43 -
60 -
34 -
40 -
53 -
30 -
- -
13 -
7 -
- -
1 -
- 320
- 6,053
- 99
- 71
- 208
- 49
- 29
- 14
- 118
- 116
- 227
- 38
- 65
- 77
- 30
- 2
- -
- -
- 318
- 13
- 128
- 18
- 299
- 95
- 171
- -
- 152
- 103
- 201
- 47
- 109
- 143
- 110
- 3,337
- 100
Annual Data 6
2025 PCL Data*
Emissions, Power Sources, Unbundled RECs Hetch Hetchy Power Hetch Hetchy
Premium
Electricity
Portfolio Name 3
Electricity Portfolio
Name 4
Electricity Portfolio
Name 5
Electricity Portfolio
Name 6
Total Loss-
Adjusted Load
Retail Sales and Loss-Adjusted Load 887,278 84,140 0 0 0 0 1,015,840 GHG Emissions Intensity (lbs CO2e/MWh) 0 0 #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0 ■ Renewables and Zero-Carbon Resources 100% 100% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 100% ■ Fossil Fuels 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0% Biomass & Biogas 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0% Geothermal 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0%
Eligible Hydroelectric 0% 100% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 8% Solar 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0%
Wind 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0%
RPS Eligible Renewables - Subtotal 0% 100% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 8% Large Hydroelectric 100% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 92% Nuclear 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0%
Emerging Technologies 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0% Other 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0%
Natural Gas 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0%
Coal & Petroleum 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0% Unspecified Power - Total 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0% Retail Sales Covered by Retired Unbundled RECs 0% 0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! - *NOTE: The figures above are preliminary.
Staff will calculate the GHG emissions factor and fuel mix breakdown (percentage derived from renewables and zero-carbon resources or fossil fuels) of unspecified power after data from all reporting entities is submitted. 2025 PCL Data 7
2025 POWER SOURCE DISCLOSURE ANNUAL REPORT
ATTESTATION FORM
For the Year Ending December 31, 2025
San Francisco Public Utilities Commission - Hetch Hetchy Power Name: Dan Willis
Representing (Retail Supplier): SFPUC - Hetch Hetchy Power Signature: /s/ Dan Willis
Dated: 7/16/26
Executed at: 525 Golden Gate Ave, San Francisco CA 94102 I, Dan Willis, Utility Specialist - Regulatory Affairs, declare under penalty of perjury, that the information provided in this report is true and correct and that I, as an authorized agent of San Francisco Public Utilities Commission - Hetch Hetchy Power, have authority to submit this report on the retail supplier's behalf. I further declare that all of the electricity claimed as specified purchases as shown in this report was sold once and only once to retail customers.
Attestation 8
San Francisco Public Utilities Commission - Hetch Hetchy Power 2025 Power Content Label
Hetch Hetchy CA Utility
Power Total Average
Hetch Hetchy Hetch Hetchy (Retail Sales, Other (Retail Sales, Other Emissions, Power Sources, Power Premium End Uses, & End Uses, & Unbundled RECs (Retail Sales) (Retail Sales) Losses) Losses) Greenhouse Gas Emissions Intensity
(lbs of CO2e emitted per megawatt hour) 0 0 0 384
Renewables and Zero-Carbon Resources
Fossil Fuels
100% 100%
0% 0%
100% 67%
0% 33%
Biomass & Biogas 0% 0% 0% 2%
Geothermal 0% 0% 0% 5%
Eligible Hydroelectric 0% 100% 8% 1%
Solar 0% 0% 0% 25%
Wind 0% 0% 0% 14%
RPS Eligible Renewables - Subtotal 0% 100% 8% 46%
Large Hydroelectric 100% 0% 92% 10%
Nuclear 0% 0% 0% 10%
Emerging Technologies 0% 0% 0% 0%
Other 0% 0% 0% 0%
Natural Gas 0% 0% 0% 11%
Coal & Petroleum 0% 0% 0% 2%
Unspecified Power (92% fossil fuels) 0% 0% 0% 21%
Total 100% 100% 100% 100%
Retail sales covered by retired unbundled RECs 0% 0% N/A N /A ■ This label does not reflect compliance with the Renewables Portfolio Standard (RPS), which measures the use of tracking instruments c
alled Renewable Energy Credits (RECs) over the course of multi-year compliance periods. RECs that are purchased separately from the renewable energy ("Unbundled RECs") can be used for RPS compliance, but they do not factor into the power mixes or GHG emissions intensities above.
■ GHG intensity figures exclude biogenic CO2 and emissions from geothermal sources and grandfathered imports of firmed-and-shaped energy. For detailed information about all GHG emissions from California's retail electricity suppliers, visit the CEC webpage at the link below.
■ Unspecified power is electricity purchased from a genericized pool on the open market. In 2025, 92% of unspecified power came from fossil fuels (natural gas, coal, and petroleum) and 8% came from renewables and zero-carbon resources (RPS-eligible and other renewables, large hydroelectric, and nuclear).
California Energy Commission - Power Source Disclosure
https://www.energy.ca.gov/programs-and-topics/programs/power-source- disclosure-program/power-content-label
Hetch Hetchy Power
https://www.sfpuc.gov/about-us/our-systems/hetch-
hetchy-power-system