# Stateline Solar

CAISO Solar Photovoltaic · https://askthegrid.com/assets/facilities/stateline-solar

Stateline Solar is a solar power facility with 299.5 MW of EIA-reported nameplate capacity in San Bernardino County, California, registered as EIA Plant ID 58646. Southern Power Co owns and operates the plant. Project filings list 3,200,000 solar panels for the facility. Southern Power Company acquired a 51% interest in the plant from First Solar, Inc. in August 2015.
DSRTSL_2_SOLAR1-APND · 115 kV · Southern California Edison Co.

## Key facts

- Technology: Solar Photovoltaic
- Power capacity: 299.5 MW

## Grid and market context

- ISO/RTO: CAISO
- Balancing authority: California Independent System Operator (CISO)
- Transmission owner: Southern California Edison Co

## Source-backed facts

- Identifiers: [{"value":"58646","system":"EIA plant ID"},{"value":"17650","system":"EIA operator code"},{"value":"STL","system":"EIA generator ID"},{"value":"STL2","system":"EIA generator ID"},{"value":"STL3","system":"EIA generator ID"},{"value":"STL4","system":"EIA generator ID"},{"value":"STL5","system":"EIA generator ID"},{"value":"STL6","system":"EIA generator ID"},{"value":"STL7","system":"EIA generator ID"},{"value":"163","system":"CAISO interconnection queue ID"},{"value":"DESERT STATELINE PROJECT","system":"CAISO queue project name"},{"value":"2012-28392","system":"Federal Register document number"},{"value":"LLCAD09000, L51010000.LVRWB09B2380.FX0000","system":"BLM agency docket"}] — Elect Plant Data with Gen. · confidence: medium
- Identifiers: [{"value":"58646","system":"EIA plant ID"},{"value":"17650","system":"EIA operator code"},{"value":"STL","system":"EIA generator ID"},{"value":"STL2","system":"EIA generator ID"},{"value":"STL3","system":"EIA generator ID"},{"value":"STL4","system":"EIA generator ID"},{"value":"STL5","system":"EIA generator ID"},{"value":"STL6","system":"EIA generator ID"},{"value":"STL7","system":"EIA generator ID"},{"value":"163","system":"CAISO interconnection queue ID"},{"value":"DESERT STATELINE PROJECT","system":"CAISO queue project name"},{"value":"2012-28392","system":"Federal Register document number"},{"value":"LLCAD09000, L51010000.LVRWB09B2380.FX0000","system":"BLM agency docket"}] — Public Queue Report · confidence: medium
- Identifiers: [{"value":"58646","system":"EIA plant ID"},{"value":"17650","system":"EIA operator code"},{"value":"STL","system":"EIA generator ID"},{"value":"STL2","system":"EIA generator ID"},{"value":"STL3","system":"EIA generator ID"},{"value":"STL4","system":"EIA generator ID"},{"value":"STL5","system":"EIA generator ID"},{"value":"STL6","system":"EIA generator ID"},{"value":"STL7","system":"EIA generator ID"},{"value":"163","system":"CAISO interconnection queue ID"},{"value":"DESERT STATELINE PROJECT","system":"CAISO queue project name"},{"value":"2012-28392","system":"Federal Register document number"},{"value":"LLCAD09000, L51010000.LVRWB09B2380.FX0000","system":"BLM agency docket"}] — Federal Register :: Impact Report for the Proposed Stateline Solar Farm, San Bernardino County, CA and Draft California Desert Conservation Area Land Use Plan Amendments · confidence: medium
- Official project url: https://www.southernpowercompany.com/our-projects/solar.html — Solar · confidence: high
- Owner name: Southern Power and Capital Dynamics — Source · confidence: high
- Description: Stateline Solar is an operating solar photovoltaic facility in San Bernardino County, California, with EIA plant ID 58646 and 299.5 MW of nameplate capacity across seven generating units. EIA plant records list Southern Power Co as operator, the California Independent System Operator as balancing authority, and the first unit online on December 1, 2015. The official project information identifies the facility as Desert Stateline Solar Facility, co-owned by Southern Power and Capital Dynamics, with First Solar as builder and operator and maintainer. — Source · confidence: high
- Identifiers.0: {"value":"58646","system":"EIA plant ID"} — Elect Plant Data with Gen. · confidence: high
- Identifiers.1: {"value":"17650","system":"EIA operator code"} — Elect Plant Data with Gen. · confidence: medium
- Identifiers.3: {"value":"STL2","system":"EIA generator ID"} — Elect Plant Data with Gen. · confidence: medium
- Identifiers.4: {"value":"STL3","system":"EIA generator ID"} — Elect Plant Data with Gen. · confidence: medium
- Identifiers.5: {"value":"STL4","system":"EIA generator ID"} — Elect Plant Data with Gen. · confidence: medium
- Identifiers.6: {"value":"STL5","system":"EIA generator ID"} — Elect Plant Data with Gen. · confidence: medium
- Identifiers.7: {"value":"STL6","system":"EIA generator ID"} — Elect Plant Data with Gen. · confidence: medium
- Identifiers.8: {"value":"STL7","system":"EIA generator ID"} — Elect Plant Data with Gen. · confidence: medium
- Identifiers.9: {"value":"163","system":"CAISO interconnection queue ID"} — Public Queue Report · confidence: high
- Identifiers.10: {"value":"DESERT STATELINE PROJECT","system":"CAISO queue project name"} — Public Queue Report · confidence: high
- Identifiers.11: {"value":"2012-28392","system":"Federal Register document number"} — Federal Register :: Impact Report for the Proposed Stateline Solar Farm, San Bernardino County, CA and Draft California Desert Conservation Area Land Use Plan Amendments · confidence: high
- Identifiers.12: {"value":"LLCAD09000, L51010000.LVRWB09B2380.FX0000","system":"BLM agency docket"} — Federal Register :: Impact Report for the Proposed Stateline Solar Farm, San Bernardino County, CA and Draft California Desert Conservation Area Land Use Plan Amendments · confidence: high
- Parties.0: {"relationship":"Co-owner and operator","name":"Southern Power Co","official_url":"https://www.southernpowercompany.com/"} — Source · confidence: high
- Parties.1: {"relationship":"Co-owner","name":"Capital Dynamics","official_url":"https://www.capdyn.com/"} — Source · confidence: high
- Parties.4: {"relationship":"Builder and operations-and-maintenance provider","name":"First Solar, Inc.","official_url":"https://www.firstsolar.com/"} — Source · confidence: high
- Parties.6: {"relationship":"Power purchaser under the long-term PPA and transmission owner","name":"Southern California Edison Company","official_url":"https://www.edison.com/"} — Source · confidence: high
- Parties.6: {"relationship":"Power purchaser under the long-term PPA and transmission owner","name":"Southern California Edison Company","official_url":"https://www.edison.com/"} — Elect Plant Data with Gen. · confidence: high
- Site acres: 1685 — Source · confidence: high
- Unit configuration: Seven solar photovoltaic generating units using First Solar thin-film PV modules on fixed-tilt, ground-mounted tables — Source · confidence: medium
- Kind: solar — Source · confidence: high
- Manufacturer domain: firstsolar.com — Source · confidence: high
- Modules or panels: 3200000 — Source · confidence: medium
- Equipment models: [{"manufacturer_domain":"firstsolar.com","product_url":null,"count":3200000,"unit_mw":null,"name":"First Solar thin-film photovoltaic (PV) modules"}] — Source · confidence: medium
- Manufacturer name: First Solar — Source · confidence: high
- Equipment models.0: {"manufacturer_domain":"firstsolar.com","product_url":null,"count":3200000,"unit_mw":null,"name":"First Solar thin-film photovoltaic (PV) modules"} — Source · confidence: medium
- Description: Stateline Solar, also identified in project materials as the Desert Stateline Solar Facility, is an operating solar photovoltaic plant in San Bernardino County, California. EIA records report 299.5 MW of nameplate capacity across seven generating units, while the project owner rounds the facility to 300 MW. Southern Power and Capital Dynamics own the facility through a partnership; First Solar built it and provides operations and maintenance. Construction began in October 2014, and the plant entered commercial operation in the third quarter of 2016 under a 20-year power purchase agreement with Southern California Edison. — Source · confidence: medium
- Quality notes: ["EIA reports 299.5 MW across seven units; official project materials describe the same facility as 300 MW.","The project had phased commissioning: EIA records identify the first unit online on 2015-12-01, while owner materials place full commercial operation in the third quarter of 2016.","The $329.5 million amount is the consideration for 8point3's 34% Stateline interest purchase in 2016. The approximately $977 million equity value and $1.7 billion enterprise value disclosed in 2018 relate to Capital Dynamics' broader acquisition of 8point3, not a Stateline-only sale price.","The reviewed plant and project records describe the facility as operational and do not report an expansion, retirement, or repowering event."] — Source · confidence: medium
- Commercial parties.1: {"relationship":"Co-owner and indirect successor to 8point3's minority interest","name":"Capital Dynamics","detail":"Capital Dynamics completed the acquisition of 8point3 on 2018-06-19. The transaction included 8point3's 34% economic interest in the Stateline Project, and current project materials identify Southern Power and Capital Dynamics as the owners.","official_url":"https://www.capdyn.com/"} — Source · confidence: medium
- Commercial parties.4: {"relationship":"Original project company and PPA counterparty","name":"Desert Stateline LLC","detail":"Desert Stateline LLC was the First Solar wholly owned subsidiary named as the counterparty to Southern California Edison's Desert Stateline power purchase agreement in the California regulatory approval record.","official_url":null} — E-4347 Draft Redacted Comment Resolution (SCE requests approval of 2 renewable energy power purchase agreements with Desert Sunlight LLC & Desert Stateline LLC, each a wholly owned subsidiary of First Solar, Inc.) · confidence: high
- Quality notes.0: EIA reports 299.5 MW across seven units; official project materials describe the same facility as 300 MW. — Source · confidence: high
- Quality notes.1: The project had phased commissioning: EIA records identify the first unit online on 2015-12-01, while owner materials place full commercial operation in the third quarter of 2016. — Source · confidence: high
- Quality notes.3: The reviewed plant and project records describe the facility as operational and do not report an expansion, retirement, or repowering event. — Source · confidence: medium
- Timeline.0: {"event":"PPA approval and original project-company structure","date":"2009-10","detail":"California regulatory materials describe the Desert Stateline PPA as resulting from SCE's 2008 RPS solicitation and identify Desert Stateline LLC as a wholly owned subsidiary of First Solar. The planned facility was 300 MW with a 20-year term and an expected online date of 2015-12-31."} — E-4347 Draft Redacted Comment Resolution (SCE requests approval of 2 renewable energy power purchase agreements with Desert Sunlight LLC & Desert Stateline LLC, each a wholly owned subsidiary of First Solar, Inc.) · confidence: high
- Timeline.1: {"event":"Construction start","date":"2014-10","detail":"Construction of the Desert Stateline Facility began in October 2014."} — Southern Company subsidiary acquires system's largest solar project · confidence: high
- Timeline.4: {"event":"Commercial operation","date":"2016","detail":"Owner materials state that the plant entered commercial operation in the third quarter of 2016; contemporary transaction reporting identified operations beginning in August 2016."} — Source · confidence: medium
- Transaction scope: ownership_stake — Source · confidence: high
- Grid role: Utility-scale photovoltaic generation whose electricity and renewable energy credits are sold to Southern California Edison under a 20-year power purchase agreement. — Source · confidence: medium

## Timeline

- 2009-10-16 — Power purchase agreement
  CPUC-approved 20-year PPA for electricity and RECs; 300 MW capacity, approximately 673 GWh/year. PPA approved without modification; pricing confidential.
  Source: E-4347 Final Redacted Resolution (This approves cost recovery for two long-term renewable energy PPAs, one between SCE & Desert Sunlight LLC & one between SCE & Desert Stateline LLC, each a wholly owned subsidiary of First Solar, Inc) (https://docs.cpuc.ca.gov/PUBLISHED/FINAL_RESOLUTION/123116.htm)
- 2014-10 — Construction start
  Construction of the Desert Stateline Facility began in October 2014.
  Source: Southern Company subsidiary acquires system's largest solar project (https://www.southerncompany.com/newsroom/clean-energy/2015-09-02-spc-desert-stateline.html)
- 2015-08 — Ownership transaction
  In August 2015, First Solar sold a 51% ownership interest in the partially constructed Desert Stateline project to a Southern Power subsidiary. In March 2016, the agreement was amended to transfer an additional 15%, bringing Southern Power's controlling interest to 66%.
  Source: FIRST SOLAR, INC. (Form: 10-Q, Received: 04/28/2016 06:12:18) (https://content.edgar-online.com/ExternalLink/EDGAR/0001274494-16-000074.html?hash=01e01fae64dd76f401754420136f2f0e6767455667cbc5d93b804ab7d31e261b&dest=ex101amendmenttoemployment_htm)
- 2015-09-02 — Southern Power acquisition from First Solar
  Southern Power announced that it had acquired a controlling interest in the 300 MW facility from First Solar; First Solar retained the remaining interest.
  Source: Southern Company subsidiary acquires system's largest solar project (https://www.southerncompany.com/newsroom/clean-energy/2015-09-02-spc-desert-stateline.html)

## Sources

- [Elect Plant Data with Gen.](https://www.wvwelectric.com/plant/58646/A/ALL) — wvwelectric.com · tier other
- [Public Queue Report](https://www.caiso.com/documents/publicqueuereport.xlsx) — caiso.com · tier other
- [Federal Register :: Impact Report for the Proposed Stateline Solar Farm, San Bernardino County, CA and Draft California Desert Conservation Area Land Use Plan Amendments](https://www.federalregister.gov/documents/2012/11/23/2012-28392/impact-report-for-the-proposed-stateline-solar-farm-san-bernardino-county-ca-and-draft-california) — federalregister.gov · tier regulatory
- [Solar](https://www.southernpowercompany.com/our-projects/solar.html) — southernpowercompany.com · tier other
- [Desert Stateline Solar Facility](https://www.southernpowercompany.com/content/dam/southernpower/pdfs/fact-sheets/DesertStateline_Solar_Facility_factsheet.pdf) — southernpowercompany.com · tier other
- [Source](https://southernpowercompany.com/content/dam/southernpower/pdfs/fact-sheets/DesertStateline_Solar_Facility_factsheet.pdf) — southernpowercompany.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/3153/000009212215000107/x10f1-q32015.htm) — sec.gov · tier regulatory
- [Series 6 Family | First Solar](https://firstsolar.com/en/Products/Series-6) — firstsolar.com · tier other
- [Source](https://firstsolar.com/) — firstsolar.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/1274494/000127449417000006/fslr10-k12x31x2016.htm) — sec.gov · tier regulatory
- [Southern Company subsidiary acquires system's largest solar project](https://www.southerncompany.com/newsroom/clean-energy/2015-09-02-spc-desert-stateline.html) — southerncompany.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/1635581/000162828017006844/a8point3531201710q.htm) — sec.gov · tier regulatory
- [E-4347 Draft Redacted Comment Resolution (SCE requests approval of 2 renewable energy power purchase agreements with Desert Sunlight LLC & Desert Stateline LLC, each a wholly owned subsidiary of First Solar, Inc.)](https://docs.cpuc.ca.gov/PUBLISHED/COMMENT_RESOLUTION/121158.htm) — docs.cpuc.ca.gov · tier regulatory
- [FIRST SOLAR, INC. (Form: 10-Q, Received: 04/28/2016 06:12:18)](https://content.edgar-online.com/ExternalLink/EDGAR/0001274494-16-000074.html?hash=01e01fae64dd76f401754420136f2f0e6767455667cbc5d93b804ab7d31e261b&dest=ex101amendmenttoemployment_htm) — content.edgar-online.com · tier other

## Data quality

- EIA reports 299.5 MW across seven units; official project materials describe the same facility as 300 MW. The reviewed plant and project records describe the facility as operational and do not report an expansion, retirement, or repowering event.

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