# Fifth Standard Solar PV, LLC (Hybrid)

CAISO asset profile · https://askthegrid.com/assets/facilities/fifth-standard-solar-pv-llc-hybrid

Fifth Standard Solar PV, LLC - Fresno County - CAISO

Fifth Standard Solar PV, LLC (Hybrid), located in Fresno County, California, is a 287-MW hybrid renewable-energy facility comprising a 150-MWac solar photovoltaic array with 369,334 photovoltaic panels and a co-located 137-MWac lithium-ion battery energy storage system with up to 548 MWh of capacity and a four-hour discharge duration. The facility connects to the California Independent System Operator (CAISO) grid through Pacific Gas & Electric Company's Gates Substation via a 230-kV generation-tie line. RWE Clean Energy owns and operates the project. The battery system, originally RWE's largest utility-scale storage facility, supports grid stability by storing excess solar energy for release during periods of highest demand.

## Metrics

- **Nameplate capacity:** 287 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 64197 — plant-64197

## Facts

- **Technology:** Solar Photovoltaic, Batteries
- **Operator:** RWE Clean Energy

## Related parties

- **Owner / operator / developer:** RWE Clean Energy — owner and developer ([source](https://www.rwe.com/en))
- **Developer:** RWE Solar Development, LLC — applicant and predecessor developer name
- **Developer:** EC&R Solar Development, LLC — original applicant
- **EPC contractor:** Blattner Energy Incorporated — EPC contractor ([source](https://www.blattnerenergy.com/))
- **Asset manager:** HDR Inc. — owner's engineer ([source](https://www.hdrinc.com/))
- **Transmission owner / interconnecting utility:** Pacific Gas & Electric Company (PG&E) — interconnecting utility and transmission owner ([source](https://www.pge.com/))
- **Balancing authority / market operator:** California Independent System Operator (CAISO) — transmission system operator and market operator ([source](https://www.caiso.com/))
- **Parent company:** RWE AG — parent company ([source](https://www.rwe.com/en))

## Sources

- [ceqanet.lci.ca.gov](http://ceqanet.lci.ca.gov/2017091038) — ceqanet.lci.ca.gov · authoritative — Source retained for exact-record publication review.
- [clarkbrosinc.com](http://clarkbrosinc.com/fifth-standard.php) — clarkbrosinc.com · public_source — Source retained for exact-record publication review.
- [hdrinc.com](http://hdrinc.com/portfolio/fifth-standard-solar-power-and-battery-storage) — hdrinc.com · public_source — Source retained for exact-record publication review.
- [rwe.com](http://rwe.com/en/press/rwe-ag/2022-10-01-rwe-acquire-con-edison-clean-energy) — rwe.com · public_source — Source retained for exact-record publication review.
- [docs.cpuc.ca.gov](https://docs.cpuc.ca.gov/PublishedDocs/Efile/G000/M548/K361/548361658.PDF) — docs.cpuc.ca.gov · authoritative — Source retained for exact-record publication review.
- [About Blattner](https://www.blattnercompany.com/about) — Blattner Company · authoritative — Official company page identifying Blattner Energy and its utility-scale EPC role.

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Canonical page: https://askthegrid.com/assets/facilities/fifth-standard-solar-pv-llc-hybrid
Website: [Fifth Standard Solar PV, LLC](https://www.rwe.com/en)

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