Proxima

OperatingBESSSolarHybrid

Ranked #16 of 963 Solar plants in CA#88 of 7447 nationally

352 MW Batteries (162 MW) + Solar Photovoltaic (190 MW) operating in Stanislaus, CA — California Independent System Operator

EIAGEM

352 MW

Nameplate Capacity

Generators

units

Hybrid (2)

Technology

Batteries + Solar Photovoltaic

2024

Operating Since

Location

Coordinates

37.4004, -121.1628

County

Stanislaus, CA

Nearby Plants

Paulsell
BESS35 MW · 3.8 km
Frontier Solar LLC
Solar20 MW · 3.9 km
Enchanted Rock Turlock Irrigation Distri
Natural Gas46.8 MW · 4.8 km

Ownership & Operator

Owner data does not fully agree across sources.

EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.

Field	EIA	GEM	Wikidata
Operator	Proxima Solar, LLC	NextEra Energy	—
Owner(s)	Proxima Solar, LLC	NextEra Energy	—
Status	Operating	operating	—

Ownership Chain

About

Located in Stanislaus County, California, the Proxima power plant is a 352 MW hybrid facility owned by NextEra Energy and operated by Proxima Solar, LLC. The plant, which came online in 2024, combines solar photovoltaic generation with battery energy storage. It utilizes single-axis solar tracking and has two generators. The battery energy storage system (BESS) has a capacity of 648 MWh and a duration of 4 hours, employing lithium-ion (LIB) chemistry. Proxima ranks as the 21st largest plant in California out of 112, and 113th nationally out of 514.

Proxima operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. The plant's latest annual generation was 463,935 MWh, resulting in a capacity factor of 15.0%. Financial data indicates a power purchase agreement (PPA) price of $32.65 per MWh.

Generated from EIA, GEM, and public data sources

EIA Plant Profile Global Energy Monitor

Engineering & Generators