# Sunrise Power LLC

CAISO Natural Gas Fired Combined Cycle · https://askthegrid.com/assets/facilities/sunrise-power-llc

Sunrise Power LLC is a natural gas-fired power facility with 685.2 MW of EIA-reported nameplate capacity in Kern County, California, registered as EIA Plant ID 55182. Sunrise Power Co LLC is the registered plant entity or operator. Sunrise is an operational natural-gas combined-cycle plant in California that provides critical generation and Resource Adequacy services to consumers, utilities, and Community Choice Aggregators statewide. Hull Street Energy acquired the project from Generation Bridge Acquisition, LLC in 2023.

## Key facts

- Technology: Natural Gas Fired Combined Cycle
- Power capacity: 685.2 MW
- Operating status: operating
- Retirement: 2026

## Grid and market context

- ISO/RTO: CAISO
- Balancing authority: CAISO (CISO)
- Substation: Midway-Buttonwillow Substation
- Point of interconnection: Midway-Buttonwillow Substation
- Transmission owner: Pacific Gas and Electric Company (PG&E)
- Interconnection voltage: 230 kV

## Source-backed facts

- Identifiers: [{"value":"55182","system":"EIA plant ID"},{"value":"G0784","system":"CEC plant ID"},{"value":"98-AFC-04","system":"CEC docket"},{"value":"SUNRIS_2_PL1X3","system":"CAISO aggregate resource ID"},{"value":"SUNRIS_2_UNIT 1","system":"CAISO unit resource ID"},{"value":"SUNRIS_2_UNIT 2","system":"CAISO unit resource ID"},{"value":"SUNRIS_2_UNIT 3","system":"CAISO unit resource ID"},{"value":"TEXSUN2G","system":"CAISO generator ID"},{"value":"ELKHIL1G","system":"CAISO generator ID"},{"value":"TEXSUNST","system":"CAISO generator ID"},{"value":"35075","system":"CAISO PF bus ID"},{"value":"35076","system":"CAISO PF bus ID"},{"value":"35079","system":"CAISO PF bus ID"}] — Cross-Reference Table · confidence: medium
- Identifiers: [{"value":"55182","system":"EIA plant ID"},{"value":"G0784","system":"CEC plant ID"},{"value":"98-AFC-04","system":"CEC docket"},{"value":"SUNRIS_2_PL1X3","system":"CAISO aggregate resource ID"},{"value":"SUNRIS_2_UNIT 1","system":"CAISO unit resource ID"},{"value":"SUNRIS_2_UNIT 2","system":"CAISO unit resource ID"},{"value":"SUNRIS_2_UNIT 3","system":"CAISO unit resource ID"},{"value":"TEXSUN2G","system":"CAISO generator ID"},{"value":"ELKHIL1G","system":"CAISO generator ID"},{"value":"TEXSUNST","system":"CAISO generator ID"},{"value":"35075","system":"CAISO PF bus ID"},{"value":"35076","system":"CAISO PF bus ID"},{"value":"35079","system":"CAISO PF bus ID"}] — Sunrise Power Project | California Energy Commission · confidence: medium
- Identifiers: [{"value":"55182","system":"EIA plant ID"},{"value":"G0784","system":"CEC plant ID"},{"value":"98-AFC-04","system":"CEC docket"},{"value":"SUNRIS_2_PL1X3","system":"CAISO aggregate resource ID"},{"value":"SUNRIS_2_UNIT 1","system":"CAISO unit resource ID"},{"value":"SUNRIS_2_UNIT 2","system":"CAISO unit resource ID"},{"value":"SUNRIS_2_UNIT 3","system":"CAISO unit resource ID"},{"value":"TEXSUN2G","system":"CAISO generator ID"},{"value":"ELKHIL1G","system":"CAISO generator ID"},{"value":"TEXSUNST","system":"CAISO generator ID"},{"value":"35075","system":"CAISO PF bus ID"},{"value":"35076","system":"CAISO PF bus ID"},{"value":"35079","system":"CAISO PF bus ID"}] — Source · confidence: medium
- Official project url: https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project — Sunrise Power Project | California Energy Commission · confidence: high
- Description: Sunrise Power LLC is the public name for the operating power plant at 12857 Sunrise Power Road in Fellows, Kern County, California. The facility is a natural-gas-fired combined-cycle plant associated with CEC Docket 98-AFC-04. CEC records identify commercial operation in 2001 for Phase 1 and 2003 for Phase 2, and EPA records identify Sunrise Power Company, LLC as the facility operator. — UIC-09-2024-0074: Sunrise Power Company LLC, Fellows, CA | US EPA · confidence: high
- Identifiers.0: {"value":"55182","system":"EIA plant ID"} — Cross-Reference Table · confidence: high
- Identifiers.1: {"value":"G0784","system":"CEC plant ID"} — Cross-Reference Table · confidence: medium
- Identifiers.2: {"value":"98-AFC-04","system":"CEC docket"} — Sunrise Power Project | California Energy Commission · confidence: high
- Identifiers.3: {"value":"SUNRIS_2_PL1X3","system":"CAISO aggregate resource ID"} — Cross-Reference Table · confidence: medium
- Identifiers.4: {"value":"SUNRIS_2_UNIT 1","system":"CAISO unit resource ID"} — Source · confidence: medium
- Identifiers.5: {"value":"SUNRIS_2_UNIT 2","system":"CAISO unit resource ID"} — Source · confidence: medium
- Identifiers.6: {"value":"SUNRIS_2_UNIT 3","system":"CAISO unit resource ID"} — Source · confidence: medium
- Identifiers.7: {"value":"TEXSUN2G","system":"CAISO generator ID"} — Source · confidence: medium
- Identifiers.8: {"value":"ELKHIL1G","system":"CAISO generator ID"} — Source · confidence: low
- Identifiers.9: {"value":"TEXSUNST","system":"CAISO generator ID"} — Source · confidence: medium
- Identifiers.10: {"value":"35075","system":"CAISO PF bus ID"} — Source · confidence: medium
- Identifiers.11: {"value":"35076","system":"CAISO PF bus ID"} — Source · confidence: medium
- Identifiers.12: {"value":"35079","system":"CAISO PF bus ID"} — Source · confidence: medium
- Parties.2: {"relationship":"Operator","name":"Sunrise Power Company, LLC","official_url":null} — UIC-09-2024-0074: Sunrise Power Company LLC, Fellows, CA | US EPA · confidence: high
- Parties.3: {"relationship":"Portfolio manager/operator platform","name":"Milepost Power","official_url":"https://www.milepostpower.com/about"} — Portfolio — Milepost Power Holdings · confidence: medium
- Parties.8: {"relationship":"Combustion-turbine OEM","name":"General Electric","official_url":"https://www.ge.com/"} — Portfolio — Milepost Power Holdings · confidence: medium
- Parties.9: {"relationship":"Steam-turbine OEM","name":"Alstom","official_url":"https://www.alstom.com/"} — Portfolio — Milepost Power Holdings · confidence: medium
- Interconnection: PG&E Midway-Buttonwillow Substation near Buttonwillow, California; two 230-kV transmission lines with PG&E transmission facilities, jointly used with La Paloma. — D0410018 Decision addresses PG&E's Section 851 application for authority to grant an easement for transmission interconnection facilities to Sunrise Power Company, LLC. · confidence: high
- Product url: https://www.gevernova.com/gas-power/products/gas-turbines/7f — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova · confidence: medium
- Product family: GE Frame 7FA / GE Vernova 7F gas-turbine family — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova · confidence: medium
- Quality notes: ["Published capacity figures differ: the CEC describes the project as 585 MW, Hull Street describes the acquired facility as 586 MW, and an EIA-linked operational record reports 685.2 MW. These figures may reflect different project, unit, or aggregation conventions.","The 635 MW uprate approved in 2022 was not initiated because the interconnection agreement limited plant output to 600 MW. The revised proposal changed the uprate provider from General Electric to Power Systems Manufacturing and reduced the maximum output to 596 MW.","No retirement or decommissioning event was identified; the CEC lists Sunrise as operational, and the 2025 change approval concerned equipment and control-system modifications rather than a new construction project."] — Source · confidence: medium
- Financing summary: The June 2023 acquisition had undisclosed consideration and undisclosed financing amount. Acquisition financing was led by Investec as Initial Bookrunner and Initial Coordinating Lead Arranger; MUFG acted as Joint Bookrunner and Coordinating Lead Arranger, and Deutsche Bank acted as Coordinating Lead Arranger. The disclosed financing relates to acquisition financing and should not be treated as disclosed sale consideration or a portfolio transaction value. — Hull Street Energy to buy Sunrise Power Holdings in US · confidence: medium
- Timeline.0: {"event":"Phase 1 CEC certification","date":"2000-12-06","detail":"The California Energy Commission certified Sunrise Phase 1."} — Sunrise Power Project | California Energy Commission · confidence: high
- Timeline.1: {"event":"Phase 1 commercial operation","date":"2001-06-27","detail":"Phase 1 began commercial operation."} — Sunrise Power Project | California Energy Commission · confidence: medium
- Timeline.2: {"event":"Ownership transfer to Sunrise Power Company, LLC","date":"2001-06-29","detail":"The CEC approved transfer of ownership from Sunrise Power Company to Sunrise Power Company, LLC."} — Sunrise Power Project | California Energy Commission · confidence: high
- Timeline.13: {"event":"Operational status","date":"2026","detail":"The CEC lists Sunrise as an operational natural-gas-fired facility; no retirement or decommissioning milestone was identified."} — Sunrise Power Project | California Energy Commission - CA.gov · confidence: medium
- Commercial parties.3: {"relationship":"Portfolio manager/operator platform","name":"Milepost Power","detail":"Its portfolio page identifies Sunrise as a natural-gas combined-cycle plant in Fellows and associates the asset with Hull Street Energy.","official_url":"https://milepostpower.com/"} — Source · confidence: medium
- Commercial parties.9: {"relationship":"Acquisition-financing lead arranger","name":"Investec","detail":"Served as Initial Bookrunner and Initial Coordinating Lead Arranger for the June 2023 Sunrise acquisition financing.","official_url":"https://www.investec.com/"} — Hull Street Energy Acquires California Natural Gas-Fired Plant | Hull Street Energy · confidence: high
- Commercial parties.10: {"relationship":"Acquisition-financing arranger","name":"MUFG","detail":"Acted as Joint Bookrunner and Coordinating Lead Arranger for the June 2023 acquisition financing.","official_url":"https://www.mufg.jp/english/"} — Hull Street Energy Acquires California Natural Gas-Fired Plant | Hull Street Energy · confidence: high
- Commercial parties.11: {"relationship":"Acquisition-financing arranger","name":"Deutsche Bank","detail":"Acted as Coordinating Lead Arranger for the June 2023 acquisition financing.","official_url":"https://www.db.com/"} — Hull Street Energy Acquires California Natural Gas-Fired Plant | Hull Street Energy · confidence: high
- Commercial parties.12: {"relationship":"Combustion-turbine OEM","name":"General Electric","detail":"Supplied the Frame 7FA combustion turbines identified in the plant configuration and was the originally proposed uprate provider.","official_url":"https://www.ge.com/"} — Source · confidence: high
- Commercial parties.13: {"relationship":"Steam-turbine OEM","name":"Alstom","detail":"Identified by the operating platform as the steam-turbine supplier for Sunrise.","official_url":"https://www.alstom.com/"} — Source · confidence: high
- Quality notes.2: No retirement or decommissioning event was identified; the CEC lists Sunrise as operational, and the 2025 change approval concerned equipment and control-system modifications rather than a new construction project. — Sunrise Power Project | California Energy Commission - CA.gov · confidence: medium
- Quality notes.2: No retirement or decommissioning event was identified; the CEC lists Sunrise as operational, and the 2025 change approval concerned equipment and control-system modifications rather than a new construction project. — Source · confidence: medium
- Replacement or repowering: CEC-approved Sunrise Power Improvement Project: hot-gas-path and upgraded combustion-turbine controls, increasing planned output from 585 MW to approximately 635 MW; this is an upgrade, not a fuel conversion or replacement plant. — Sunrise Power Project · confidence: high

## Timeline

- 2000-12-06 — Phase 1 CEC certification
  The California Energy Commission certified Sunrise Phase 1.
  Source: Sunrise Power Project | California Energy Commission (https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project)
- 2001-06-27 — Phase 1 commercial operation
  Phase 1 began commercial operation.
  Source: Sunrise Power Project | California Energy Commission (https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project)
- 2001-11-19 — Conversion and expansion approved
  The CEC approved conversion from simple-cycle to combined-cycle operations and expansion to a 585 MW combined-cycle plant.
  Source: Sunrise Power Project | California Energy Commission (https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project)
- 2001-12-21 — Combined-cycle construction commenced
  Construction of the reconfigured combined-cycle facility commenced.
  Source: Sunrise Power Project | California Energy Commission (https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project)
- 2003-06-01 — Phase 2 combined-cycle commercial operation
  The newly reconfigured combined-cycle plant commenced operation.
  Source: Sunrise Power Project | California Energy Commission (https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project)
- 2021-04-12 — Hot-gas-path uprate petition
  Sunrise Power Company, LLC submitted a CEC petition for turbine upgrades and controls intended to increase output to 635 MW.
  Source: Sunrise Power Project | California Energy Commission (https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project)
- 2022-12-19 — 635 MW improvement approved
  The CEC approved the Sunrise Improvement Project, including combustion-turbine component and control-system upgrades intended to increase output from 585 MW to 635 MW.
  Source: Source (https://efiling.energy.ca.gov/GetDocument.aspx?tn=262250&DocumentContentId=98764)
- 2023-05-23 — New interconnection agreement
  Sunrise entered a new Large Generator Interconnection Agreement with a 600 MW output limitation, preventing implementation of the 635 MW configuration.
  Source: Sunrise Power Plant Repowering Project - PTA (https://efiling.energy.ca.gov/GetDocument.aspx?tn=256480&DocumentContentId=92311)
- 2023-06-22 — Ownership transaction
  On June 22, 2023, Hull Street Energy acquired Sunrise Power Holdings, LLC from Generation Bridge Acquisition, LLC, an ArcLight affiliate; the transaction covered the Sunrise natural-gas-fired plant in Fellows, California.
  Source: Source (https://hullstreetenergy.com/blog/hull-street-energy-acquires-california-natural-gas-fired-plant-2)
- 2024-05-21 — Revised repowering petition filed
  Sunrise Power Company, LLC filed a revised petition changing the uprate provider from General Electric to Power Systems Manufacturing and revising the proposed maximum output to 596 MW.
  Source: Source (https://efiling.energy.ca.gov/GetDocument.aspx?tn=262250&DocumentContentId=98764)
- 2025-03-20 — Revised repowering change approved
  CEC staff approved the turbine-component change for the Sunrise Repowering Project; the approved modification provided for maximum output of 596 MW and did not involve new construction.
  Source: Source (https://efiling.energy.ca.gov/GetDocument.aspx?tn=262250&DocumentContentId=98764)
- 2026 — Operational status
  The CEC lists Sunrise as an operational natural-gas-fired facility; no retirement or decommissioning milestone was identified.
  Source: Sunrise Power Project | California Energy Commission - CA.gov (https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project)

## Sources

- [Hull Street Energy Acquires California Natural Gas-Fired Plant | Hull Street Energy](https://hullstreetenergy.com/blog/hull-street-energy-acquires-california-natural-gas-fired-plant-2/) — hullstreetenergy.com · tier other
- [Cross-Reference Table](https://www.energy.ca.gov/sites/default/files/2025-04/Energy_Commission_Power_Plant_ID_Cross_Reference_Table_2024.xlsx) — energy.ca.gov · tier regulatory
- [Sunrise Power Project | California Energy Commission](https://www.energy.ca.gov/powerplant/simple-cycle/sunrise-power-project) — energy.ca.gov · tier regulatory
- [Source](https://www.caiso.com/documents/list-generationunitsbylocalcapacityarea.pdf) — caiso.com · tier other
- [Portfolio — Milepost Power Holdings](https://www.milepostpower.com/about) — milepostpower.com · tier other
- [UIC-09-2024-0074: Sunrise Power Company LLC, Fellows, CA | US EPA](https://www.epa.gov/ca/UIC-09-2024-0074) — epa.gov · tier regulatory
- [D0410018 Decision addresses PG&E's Section 851 application for authority to grant an easement for transmission interconnection facilities to Sunrise Power Company, LLC.](https://docs.cpuc.ca.gov/published/Final_decision/40941.htm) — docs.cpuc.ca.gov · tier regulatory
- [Sunrise Power Plant Staff Approved Project Change for the ...](https://efiling.energy.ca.gov/GetDocument.aspx?tn=262250&DocumentContentId=98764) — efiling.energy.ca.gov · tier regulatory
- [7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova](https://www.gevernova.com/gas-power/products/gas-turbines/7f) — gevernova.com · tier other
- [Source](https://milepostpower.com/about) — milepostpower.com · tier other
- [Source](https://energy.ca.gov/powerplant/simple-cycle/sunrise-power-project) — energy.ca.gov · tier regulatory
- [Hull Street Energy to buy Sunrise Power Holdings in US](https://www.power-technology.com/news/hull-street-energy-sunrise-power/) — power-technology.com · tier other
- [Sunrise Power Plant Repowering Project - PTA](https://efiling.energy.ca.gov/GetDocument.aspx?tn=256480&DocumentContentId=92311) — efiling.energy.ca.gov · tier regulatory
- [Source](https://hullstreetenergy.com/blog/hull-street-energy-acquires-california-natural-gas-fired-plant-2) — hullstreetenergy.com · tier other
- [Source](https://power-technology.com/data-insights/power-plant-profile-sunrise-power-plant-us) — power-technology.com · tier other
- [Sunrise Power Project](https://efiling.energy.ca.gov/GetDocument.aspx?tn=247611) — efiling.energy.ca.gov · tier regulatory

## Data quality

- Published capacity figures differ: the CEC describes the project as 585 MW, Hull Street describes the acquired facility as 586 MW, and an EIA-linked operational record reports 685.2 MW. These figures may reflect different project, unit, or aggregation conventions. The 635 MW uprate approved in 2022 was not initiated because the interconnection agreement limited plant output to 600 MW. The revised proposal changed the uprate provider from General Electric to Power Systems Manufacturing and reduced the maximum output to 596 MW. No retirement or decommissioning event was identified; the CEC lists Sunrise as operational, and the 2025 change approval concerned equipment and control-system modifications rather than a new construction project.

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