# Sunlight Storage II

CAISO Batteries · https://askthegrid.com/assets/facilities/sunlight-storage-ii

Sunlight Storage II is a battery energy storage facility with 230 MW of EIA-reported operating capacity in Riverside County, California, registered as EIA Plant ID 66575. Sunlight Storage II owns and operates the plant. Commercial operation began in April 2024. The facility interconnects at Southern California Edison Red Bluff Substation at 230 kV. Its grid role is co-located solar-shifting energy storage: the system stores electricity from the Desert Sunlight Solar Farm and releases it when power is most needed, improving grid reliability and renewable-energy availability.

## Key facts

- Technology: Batteries
- Power capacity: 230 MW
- Operating status: operating

## Grid and market context

- ISO/RTO: CAISO
- Balancing authority: CISO (California Independent System Operator)
- Substation: Southern California Edison Red Bluff Substation
- Point of interconnection: Southern California Edison Red Bluff Substation
- Transmission owner: Southern California Edison (SCE)
- Interconnection voltage: 230 kV

## Source-backed facts

- Owner logo domain: nexteraenergyresources.com — BLM approves NextEra’s 300-MW Sunlight Storage II project in Southern California | Utility Dive · confidence: medium
- Identifiers: [{"value":"66575","system":"EIA plant code"},{"value":"SUNS2","system":"EIA generator ID"},{"value":"CISO","system":"Balancing authority"},{"value":"CAISO","system":"ISO/RTO market"},{"value":"DESERT SUNLIGHT PV II","system":"CAISO queue project name"},{"value":"147","system":"CAISO queue position"},{"value":"ER24-136-000","system":"FERC docket"},{"value":"7A333249001","system":"California Water Board WDID"},{"value":"449889","system":"California Water Board regulatory measure ID"},{"value":"884264","system":"California Water Board Place ID"},{"value":"Sunlight PV II Storage 2","system":"CAISO resource name"}] — Public Queue Report · confidence: medium
- Identifiers: [{"value":"66575","system":"EIA plant code"},{"value":"SUNS2","system":"EIA generator ID"},{"value":"CISO","system":"Balancing authority"},{"value":"CAISO","system":"ISO/RTO market"},{"value":"DESERT SUNLIGHT PV II","system":"CAISO queue project name"},{"value":"147","system":"CAISO queue position"},{"value":"ER24-136-000","system":"FERC docket"},{"value":"7A333249001","system":"California Water Board WDID"},{"value":"449889","system":"California Water Board regulatory measure ID"},{"value":"884264","system":"California Water Board Place ID"},{"value":"Sunlight PV II Storage 2","system":"CAISO resource name"}] — Federal Register :: Sunlight Storage II, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for Blanket Section 204 Authorization · confidence: medium
- Identifiers: [{"value":"66575","system":"EIA plant code"},{"value":"SUNS2","system":"EIA generator ID"},{"value":"CISO","system":"Balancing authority"},{"value":"CAISO","system":"ISO/RTO market"},{"value":"DESERT SUNLIGHT PV II","system":"CAISO queue project name"},{"value":"147","system":"CAISO queue position"},{"value":"ER24-136-000","system":"FERC docket"},{"value":"7A333249001","system":"California Water Board WDID"},{"value":"449889","system":"California Water Board regulatory measure ID"},{"value":"884264","system":"California Water Board Place ID"},{"value":"Sunlight PV II Storage 2","system":"CAISO resource name"}] — CAISO Resource Visibility Template · confidence: medium
- Description: Sunlight Storage II is an operational battery energy storage plant in Riverside County, California. The plant has one 230 MW battery generating unit, identified by EIA generator ID SUNS2, with commercial operation beginning April 1, 2024. It operates within the CISO balancing authority and CAISO market and is part of the Desert Sunlight Solar Farm complex. — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: medium
- Parties: [{"relationship":"Applicant / permittee / project entity","name":"Sunlight Storage II, LLC","official_url":null},{"relationship":"Developer / parent company","name":"NextEra Energy Resources, LLC","official_url":"https://www.nexteraenergyresources.com/"},{"relationship":"Federal land manager","name":"Bureau of Land Management","official_url":"https://www.blm.gov/"}] — BLM approves NextEra’s 300-MW Sunlight Storage II project in Southern California | Utility Dive · confidence: medium
- Identifiers.4: {"value":"DESERT SUNLIGHT PV II","system":"CAISO queue project name"} — Public Queue Report · confidence: medium
- Identifiers.5: {"value":"147","system":"CAISO queue position"} — Public Queue Report · confidence: medium
- Identifiers.6: {"value":"ER24-136-000","system":"FERC docket"} — Federal Register :: Sunlight Storage II, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for Blanket Section 204 Authorization · confidence: high
- Identifiers.10: {"value":"Sunlight PV II Storage 2","system":"CAISO resource name"} — CAISO Resource Visibility Template · confidence: medium
- Parties.1: {"relationship":"Developer / parent company","name":"NextEra Energy Resources, LLC","official_url":"https://www.nexteraenergyresources.com/"} — BLM approves NextEra’s 300-MW Sunlight Storage II project in Southern California | Utility Dive · confidence: medium
- Parties.2: {"relationship":"Federal land manager","name":"Bureau of Land Management","official_url":"https://www.blm.gov/"} — BLM approves NextEra’s 300-MW Sunlight Storage II project in Southern California | Utility Dive · confidence: high
- Construction scope: Operational 230-MW battery plant in Riverside County with one EIA generating unit. The permitted build comprised a BESS on approximately 30 acres within the existing Desert Sunlight Solar Farm boundary, designed for up to 300 MW, with 34.5-kV collection lines, Desert Sunlight substation upgrades, use of existing access roads, interconnection to Southern California Edison’s Red Bluff Substation, and no off-site improvements. The project occupied approximately 52 acres including approximately 22 acres of previously graded laydown area. BLM reported the system fully operational and adding 300 MW of storage to the Desert Sunlight complex. — Source · confidence: medium
- Construction scope: Operational 230-MW battery plant in Riverside County with one EIA generating unit. The permitted build comprised a BESS on approximately 30 acres within the existing Desert Sunlight Solar Farm boundary, designed for up to 300 MW, with 34.5-kV collection lines, Desert Sunlight substation upgrades, use of existing access roads, interconnection to Southern California Edison’s Red Bluff Substation, and no off-site improvements. The project occupied approximately 52 acres including approximately 22 acres of previously graded laydown area. BLM reported the system fully operational and adding 300 MW of storage to the Desert Sunlight complex. — Source · confidence: medium
- Construction scope: Operational 230-MW battery plant in Riverside County with one EIA generating unit. The permitted build comprised a BESS on approximately 30 acres within the existing Desert Sunlight Solar Farm boundary, designed for up to 300 MW, with 34.5-kV collection lines, Desert Sunlight substation upgrades, use of existing access roads, interconnection to Southern California Edison’s Red Bluff Substation, and no off-site improvements. The project occupied approximately 52 acres including approximately 22 acres of previously graded laydown area. BLM reported the system fully operational and adding 300 MW of storage to the Desert Sunlight complex. — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: medium
- Significance: Sunlight Storage II is the second major battery-storage addition at the 550 MW Desert Sunlight Solar Farm. BLM states that it adds up to 300 MW and brings the co-located complex's total storage capacity to 530 MW, while the exact plant record identifies Sunlight Storage II as a separate 230 MW battery plant with one generating unit. — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: medium
- Description: Sunlight Storage II is a 230 MW battery energy-storage plant in Riverside County, California, identified as a single-unit facility. Sunlight Storage II, LLC is the project entity and applicant; project disclosures identify it as a wholly owned subsidiary of NextEra Energy Resources, LLC. The project occupies approximately 30 acres within the existing Desert Sunlight Solar Farm facilities and connects to Southern California Edison’s Red Bluff Substation. Construction was scheduled for May 2023 through March 2024, and BLM announced the system fully operational on April 15, 2024. No acquisition, sale, predecessor-owner change, or transaction value was disclosed for this exact plant. — eLibrary | Document Information · confidence: medium
- Description: Sunlight Storage II is a 230 MW battery energy-storage plant in Riverside County, California, identified as a single-unit facility. Sunlight Storage II, LLC is the project entity and applicant; project disclosures identify it as a wholly owned subsidiary of NextEra Energy Resources, LLC. The project occupies approximately 30 acres within the existing Desert Sunlight Solar Farm facilities and connects to Southern California Edison’s Red Bluff Substation. Construction was scheduled for May 2023 through March 2024, and BLM announced the system fully operational on April 15, 2024. No acquisition, sale, predecessor-owner change, or transaction value was disclosed for this exact plant. — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: medium
- Quality notes: ["The exact EIA plant is listed at 230 MW, while BLM approval and announcement materials describe the broader Sunlight Storage II project scope as adding up to 300 MW; these figures are kept separate.","The FERC filing concerns market-based-rate authority and a request for blanket authorization for future securities issuances and liability assumptions; it does not disclose project debt, tax equity, construction financing, or sale consideration.","No exact-project disclosure identified an EPC contractor, battery OEM, offtaker, acquisition price, seller, retirement, or repowering event. The FERC/EIA index separately lists November 1, 2023 as an active date, while BLM’s operational announcement is dated April 15, 2024."] — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: medium
- Quality notes: ["The exact EIA plant is listed at 230 MW, while BLM approval and announcement materials describe the broader Sunlight Storage II project scope as adding up to 300 MW; these figures are kept separate.","The FERC filing concerns market-based-rate authority and a request for blanket authorization for future securities issuances and liability assumptions; it does not disclose project debt, tax equity, construction financing, or sale consideration.","No exact-project disclosure identified an EPC contractor, battery OEM, offtaker, acquisition price, seller, retirement, or repowering event. The FERC/EIA index separately lists November 1, 2023 as an active date, while BLM’s operational announcement is dated April 15, 2024."] — Federal Register :: Sunlight Storage II, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for Blanket Section 204 Authorization · confidence: medium
- Quality notes: ["The exact EIA plant is listed at 230 MW, while BLM approval and announcement materials describe the broader Sunlight Storage II project scope as adding up to 300 MW; these figures are kept separate.","The FERC filing concerns market-based-rate authority and a request for blanket authorization for future securities issuances and liability assumptions; it does not disclose project debt, tax equity, construction financing, or sale consideration.","No exact-project disclosure identified an EPC contractor, battery OEM, offtaker, acquisition price, seller, retirement, or repowering event. The FERC/EIA index separately lists November 1, 2023 as an active date, while BLM’s operational announcement is dated April 15, 2024."] — MBR | Index · confidence: medium
- Financing summary: No project-specific financing amount, lender, tax-equity investor, construction-loan provider, acquisition price, or sale consideration was disclosed. Sunlight Storage II, LLC filed for market-based-rate authority on October 18, 2023, and the related FERC notice recorded a request for blanket Section 204 authorization for future securities issuances and assumptions of liability; this is regulatory authorization, not evidence of an executed project-financing transaction. No acquisition or sale transaction month/year was identified for the exact plant. — eLibrary | Document Information · confidence: medium
- Financing summary: No project-specific financing amount, lender, tax-equity investor, construction-loan provider, acquisition price, or sale consideration was disclosed. Sunlight Storage II, LLC filed for market-based-rate authority on October 18, 2023, and the related FERC notice recorded a request for blanket Section 204 authorization for future securities issuances and assumptions of liability; this is regulatory authorization, not evidence of an executed project-financing transaction. No acquisition or sale transaction month/year was identified for the exact plant. — Federal Register :: Sunlight Storage II, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for Blanket Section 204 Authorization · confidence: medium
- Financing summary: No project-specific financing amount, lender, tax-equity investor, construction-loan provider, acquisition price, or sale consideration was disclosed. Sunlight Storage II, LLC filed for market-based-rate authority on October 18, 2023, and the related FERC notice recorded a request for blanket Section 204 authorization for future securities issuances and assumptions of liability; this is regulatory authorization, not evidence of an executed project-financing transaction. No acquisition or sale transaction month/year was identified for the exact plant. — eLibrary | Docket Search Results · confidence: medium
- Timeline: [{"event":"Project application received","date":"2022-10-14","detail":"The California Water Board record states that the Sunlight Storage II Project application was received on October 14, 2022 and deemed complete on December 27, 2022."},{"event":"Water-quality authorization and construction schedule","date":"2023-04-11","detail":"Order R7-2023-0009 identified Sunlight Storage II, LLC as applicant and described a BESS of up to 300 MW on approximately 30 acres. Planned construction was May 2023 through March 2024."},{"event":"BLM project approval","date":"2023-05-19","detail":"BLM announced approval of the Sunlight Storage II Battery Energy Storage System in Riverside County, with planned additional storage capacity of up to 300 MW."},{"event":"Notice to proceed with construction","date":"2023-06-02","detail":"BLM issued a Notice to Proceed with construction for the Sunlight Storage II Battery Energy Storage System."},{"event":"FERC market-based-rate filing","date":"2023-10-18","detail":"Sunlight Storage II, LLC submitted its application for market-based-rate authority, with an accompanying request for blanket Section 204 authorization for future securities issuances and assumptions of liability."},{"event":"Commercial operation and full operational announcement","date":"2024-04","detail":"The plant record reports commercial operation in April 2024, and BLM announced on April 15, 2024 that Sunlight Storage II was fully operational and contributing storage to the California grid."}] — Order R7-2023-0009 Sunlight Storage 2 DF WDRs · confidence: medium
- Timeline: [{"event":"Project application received","date":"2022-10-14","detail":"The California Water Board record states that the Sunlight Storage II Project application was received on October 14, 2022 and deemed complete on December 27, 2022."},{"event":"Water-quality authorization and construction schedule","date":"2023-04-11","detail":"Order R7-2023-0009 identified Sunlight Storage II, LLC as applicant and described a BESS of up to 300 MW on approximately 30 acres. Planned construction was May 2023 through March 2024."},{"event":"BLM project approval","date":"2023-05-19","detail":"BLM announced approval of the Sunlight Storage II Battery Energy Storage System in Riverside County, with planned additional storage capacity of up to 300 MW."},{"event":"Notice to proceed with construction","date":"2023-06-02","detail":"BLM issued a Notice to Proceed with construction for the Sunlight Storage II Battery Energy Storage System."},{"event":"FERC market-based-rate filing","date":"2023-10-18","detail":"Sunlight Storage II, LLC submitted its application for market-based-rate authority, with an accompanying request for blanket Section 204 authorization for future securities issuances and assumptions of liability."},{"event":"Commercial operation and full operational announcement","date":"2024-04","detail":"The plant record reports commercial operation in April 2024, and BLM announced on April 15, 2024 that Sunlight Storage II was fully operational and contributing storage to the California grid."}] — BLM advances clean energy in California | Bureau of Land Management · confidence: medium
- Timeline: [{"event":"Project application received","date":"2022-10-14","detail":"The California Water Board record states that the Sunlight Storage II Project application was received on October 14, 2022 and deemed complete on December 27, 2022."},{"event":"Water-quality authorization and construction schedule","date":"2023-04-11","detail":"Order R7-2023-0009 identified Sunlight Storage II, LLC as applicant and described a BESS of up to 300 MW on approximately 30 acres. Planned construction was May 2023 through March 2024."},{"event":"BLM project approval","date":"2023-05-19","detail":"BLM announced approval of the Sunlight Storage II Battery Energy Storage System in Riverside County, with planned additional storage capacity of up to 300 MW."},{"event":"Notice to proceed with construction","date":"2023-06-02","detail":"BLM issued a Notice to Proceed with construction for the Sunlight Storage II Battery Energy Storage System."},{"event":"FERC market-based-rate filing","date":"2023-10-18","detail":"Sunlight Storage II, LLC submitted its application for market-based-rate authority, with an accompanying request for blanket Section 204 authorization for future securities issuances and assumptions of liability."},{"event":"Commercial operation and full operational announcement","date":"2024-04","detail":"The plant record reports commercial operation in April 2024, and BLM announced on April 15, 2024 that Sunlight Storage II was fully operational and contributing storage to the California grid."}] — BLM advances battery storage for renewable energy in... · confidence: medium
- Timeline: [{"event":"Project application received","date":"2022-10-14","detail":"The California Water Board record states that the Sunlight Storage II Project application was received on October 14, 2022 and deemed complete on December 27, 2022."},{"event":"Water-quality authorization and construction schedule","date":"2023-04-11","detail":"Order R7-2023-0009 identified Sunlight Storage II, LLC as applicant and described a BESS of up to 300 MW on approximately 30 acres. Planned construction was May 2023 through March 2024."},{"event":"BLM project approval","date":"2023-05-19","detail":"BLM announced approval of the Sunlight Storage II Battery Energy Storage System in Riverside County, with planned additional storage capacity of up to 300 MW."},{"event":"Notice to proceed with construction","date":"2023-06-02","detail":"BLM issued a Notice to Proceed with construction for the Sunlight Storage II Battery Energy Storage System."},{"event":"FERC market-based-rate filing","date":"2023-10-18","detail":"Sunlight Storage II, LLC submitted its application for market-based-rate authority, with an accompanying request for blanket Section 204 authorization for future securities issuances and assumptions of liability."},{"event":"Commercial operation and full operational announcement","date":"2024-04","detail":"The plant record reports commercial operation in April 2024, and BLM announced on April 15, 2024 that Sunlight Storage II was fully operational and contributing storage to the California grid."}] — eLibrary | Document Information · confidence: medium
- Timeline: [{"event":"Project application received","date":"2022-10-14","detail":"The California Water Board record states that the Sunlight Storage II Project application was received on October 14, 2022 and deemed complete on December 27, 2022."},{"event":"Water-quality authorization and construction schedule","date":"2023-04-11","detail":"Order R7-2023-0009 identified Sunlight Storage II, LLC as applicant and described a BESS of up to 300 MW on approximately 30 acres. Planned construction was May 2023 through March 2024."},{"event":"BLM project approval","date":"2023-05-19","detail":"BLM announced approval of the Sunlight Storage II Battery Energy Storage System in Riverside County, with planned additional storage capacity of up to 300 MW."},{"event":"Notice to proceed with construction","date":"2023-06-02","detail":"BLM issued a Notice to Proceed with construction for the Sunlight Storage II Battery Energy Storage System."},{"event":"FERC market-based-rate filing","date":"2023-10-18","detail":"Sunlight Storage II, LLC submitted its application for market-based-rate authority, with an accompanying request for blanket Section 204 authorization for future securities issuances and assumptions of liability."},{"event":"Commercial operation and full operational announcement","date":"2024-04","detail":"The plant record reports commercial operation in April 2024, and BLM announced on April 15, 2024 that Sunlight Storage II was fully operational and contributing storage to the California grid."}] — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: medium
- Quality notes.0: The exact EIA plant is listed at 230 MW, while BLM approval and announcement materials describe the broader Sunlight Storage II project scope as adding up to 300 MW; these figures are kept separate. — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: medium
- Quality notes.1: The FERC filing concerns market-based-rate authority and a request for blanket authorization for future securities issuances and liability assumptions; it does not disclose project debt, tax equity, construction financing, or sale consideration. — Federal Register :: Sunlight Storage II, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for Blanket Section 204 Authorization · confidence: medium
- Quality notes.2: No exact-project disclosure identified an EPC contractor, battery OEM, offtaker, acquisition price, seller, retirement, or repowering event. The FERC/EIA index separately lists November 1, 2023 as an active date, while BLM’s operational announcement is dated April 15, 2024. — eLibrary | Docket Search Results · confidence: medium
- Timeline.0: {"event":"Project application received","date":"2022-10-14","detail":"The California Water Board record states that the Sunlight Storage II Project application was received on October 14, 2022 and deemed complete on December 27, 2022."} — Order R7-2023-0009 Sunlight Storage 2 DF WDRs · confidence: high
- Timeline.2: {"event":"BLM project approval","date":"2023-05-19","detail":"BLM announced approval of the Sunlight Storage II Battery Energy Storage System in Riverside County, with planned additional storage capacity of up to 300 MW."} — BLM advances clean energy in California | Bureau of Land Management · confidence: high
- Timeline.3: {"event":"Notice to proceed with construction","date":"2023-06-02","detail":"BLM issued a Notice to Proceed with construction for the Sunlight Storage II Battery Energy Storage System."} — BLM advances battery storage for renewable energy in... · confidence: high
- Timeline.4: {"event":"FERC market-based-rate filing","date":"2023-10-18","detail":"Sunlight Storage II, LLC submitted its application for market-based-rate authority, with an accompanying request for blanket Section 204 authorization for future securities issuances and assumptions of liability."} — eLibrary | Document Information · confidence: high
- Timeline.5: {"event":"Commercial operation and full operational announcement","date":"2024-04","detail":"The plant record reports commercial operation in April 2024, and BLM announced on April 15, 2024 that Sunlight Storage II was fully operational and contributing storage to the California grid."} — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: medium
- Commercial parties.1: {"relationship":"Developer / parent company","name":"NextEra Energy Resources, LLC","detail":"Identified in project disclosures as the parent of Sunlight Storage II, LLC; NextEra Energy Resources also acted as the FERC filing agent for the project entity.","official_url":"https://www.nexteraenergyresources.com/"} — Desert Sunlight project in California to add 300 MW of... · confidence: medium
- Commercial parties.1: {"relationship":"Developer / parent company","name":"NextEra Energy Resources, LLC","detail":"Identified in project disclosures as the parent of Sunlight Storage II, LLC; NextEra Energy Resources also acted as the FERC filing agent for the project entity.","official_url":"https://www.nexteraenergyresources.com/"} — eLibrary | Document Information · confidence: medium
- Commercial parties.2: {"relationship":"Federal land manager / permitting authority","name":"Bureau of Land Management","detail":"Approved the project, issued the construction Notice to Proceed, and announced its full operation.","official_url":"https://www.blm.gov/"} — BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management · confidence: high
- Substation: Southern California Edison Red Bluff Substation — Source · confidence: high

## Timeline

- 2022-10-14 — Project application received
  The California Water Board record states that the Sunlight Storage II Project application was received on October 14, 2022 and deemed complete on December 27, 2022.
  Source: Order R7-2023-0009 Sunlight Storage 2 DF WDRs (https://www.waterboards.ca.gov/rwqcb7/water_issues/programs/401_certification/docs/sunlight-storage-r7-2023-0009.pdf)
- 2023-04-11 — Water-quality authorization and construction schedule
  Order R7-2023-0009 identified Sunlight Storage II, LLC as applicant and described a BESS of up to 300 MW on approximately 30 acres. Planned construction was May 2023 through March 2024.
  Source: Order R7-2023-0009 Sunlight Storage 2 DF WDRs (https://www.waterboards.ca.gov/rwqcb7/water_issues/programs/401_certification/docs/sunlight-storage-r7-2023-0009.pdf)
- 2024-04 — Commercial operation and full operational announcement
  The plant record reports commercial operation in April 2024, and BLM announced on April 15, 2024 that Sunlight Storage II was fully operational and contributing storage to the California grid.
  Source: BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management (https://www.blm.gov/press-release/blm-announces-sunlight-storage-ii-battery-system-fully-operational)

## Sources

- [BLM approves NextEra’s 300-MW Sunlight Storage II project in Southern California | Utility Dive](https://www.utilitydive.com/news/bureau-land-management-blm-nextera-california-bess/652496/) — utilitydive.com · tier other
- [NextEra Energy Resources | Mount Vernon Battery Storage | FAQ](https://www.nexteraenergyresources.com/mount-vernon-battery-storage/faq.html) — nexteraenergyresources.com · tier other
- [Public Queue Report](https://www.caiso.com/documents/publicqueuereport.xlsx) — caiso.com · tier other
- [Federal Register :: Sunlight Storage II, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for Blanket Section 204 Authorization](https://www.federalregister.gov/documents/2023/10/25/2023-23589/sunlight-storage-ii-llc-supplemental-notice-that-initial-market-based-rate-filing-includes-request) — federalregister.gov · tier regulatory
- [Source](https://www.waterboards.ca.gov/rwqcb7/water_issues/programs/401_certification/docs/sunlight-storage-r7-2023-0009.pdf) — waterboards.ca.gov · tier regulatory
- [CAISO Resource Visibility Template](https://www.caiso.com/documents/caiso-resource-visibility-template.xlsx) — caiso.com · tier other
- [BLM announces Sunlight Storage II Battery System is fully operational | Bureau of Land Management](https://www.blm.gov/press-release/blm-announces-sunlight-storage-ii-battery-system-fully-operational) — blm.gov · tier regulatory
- [Source](https://blm.gov/press-release/blm-announces-sunlight-storage-ii-battery-system-fully-operational) — blm.gov · tier regulatory
- [Source](https://waterboards.ca.gov/rwqcb7/water_issues/programs/401_certification/docs/sunlight-storage-r7-2023-0009.pdf) — waterboards.ca.gov · tier regulatory
- [eLibrary | Document Information](https://elibrary.ferc.gov/eLibrary/docinfo?accession_Number=20231018-5053) — elibrary.ferc.gov · tier regulatory
- [MBR | Index](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=771) — mbrweb.ferc.gov · tier regulatory
- [eLibrary | Docket Search Results](https://elibrary.ferc.gov/idmws/docket_sheet.asp?DOCKET=ER24-136) — elibrary.ferc.gov · tier regulatory
- [BLM advances clean energy in California | Bureau of Land Management](https://www.blm.gov/press-release/blm-advances-clean-energy-california) — blm.gov · tier regulatory
- [BLM advances battery storage for renewable energy in ...](https://www.blm.gov/press-release/blm-advances-battery-storage-renewable-energy-california-desert) — blm.gov · tier regulatory
- [Desert Sunlight project in California to add 300 MW of ...](https://renewablesnow.com/news/desert-sunlight-project-in-california-to-add-300-mw-of-storage-824872/) — renewablesnow.com · tier other
- [Federal Register :: Combined Notice of Filings #1](https://www.federalregister.gov/documents/2024/05/13/2024-10348/combined-notice-of-filings-1) — federalregister.gov · tier regulatory

## Data quality

- The exact EIA plant is listed at 230 MW, while BLM approval and announcement materials describe the broader Sunlight Storage II project scope as adding up to 300 MW; these figures are kept separate. The FERC filing concerns market-based-rate authority and a request for blanket authorization for future securities issuances and liability assumptions; it does not disclose project debt, tax equity, construction financing, or sale consideration. No exact-project disclosure identified an EPC contractor, battery OEM, offtaker, acquisition price, seller, retirement, or repowering event. The FERC/EIA index separately lists November 1, 2023 as an active date, while BLM’s operational announcement is dated April 15, 2024.

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Canonical page: https://askthegrid.com/assets/facilities/sunlight-storage-ii

Source: Ask the Grid — https://askthegrid.com/