Beaumont BESS — Plant Summary
- EIA Plant ID
- 66461
- Capacity
- 116.6 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- Riverside, CA
- Operating Since
- 2024
- Generators
- 1
- Operator
- Terra-Gen Operating Co-BESS 2
- Parent Company
- —
- Annual Generation
- -14,876 MWh
- Capacity Factor
- -1.5%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Beaumont BESS
OperatingBESS
Ranked #45 of 191 BESS plants in CA#284 of 837 nationally
116.6 MW BESS operating in Riverside, CA — California Independent System Operator
EIA
116.6 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Location
Coordinates
33.9244, -116.9876
County
Riverside, CA
Nearby Plants
- Amazon PSP1Solar3.8 MW · 0.7 km
- San Jacinto Grid, LLCBESS65 MW · 10.5 km
- EMWD - San Jacinto RES BCTSolar4.2 MW · 13.9 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Terra-Gen Operating Co-BESS 2 | — | — |
| Owner(s) | Terra-Gen Operating Co-BESS 2 | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Beaumont BESS is a battery energy storage system located in Riverside County, California. The plant, owned and operated by Terra-Gen Operating Co-BESS 2, has a total capacity of 116.6 MW. It began operating in 2024 and utilizes batteries as its primary fuel source, specifically lithium-ion (LIB) chemistry. The facility consists of a single generator.
The Beaumont BESS has a total storage capacity of 400 MWh, providing a duration of approximately 3.43 hours at full output. It operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In terms of size, Beaumont BESS ranks 98th out of 112 battery storage plants in California and 444th nationally out of 514 such facilities.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
115 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
−852 MWh
Net Charging
-14.9K MWh
Annual Net Energy
-1.5%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Edison Dylan Substation · 115 kV
Substation Distance
< 10 km
Operator
Southern California Edison
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
—
Pricing Hub
TH_SP15_GEN-APND
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
BeaumontSubstation
News & Articles (4)Beta
Industry·corporate
'Unprecedented market conditions' force PG&E to up price on 2GWh of battery storage contracts
Inflation and supply chain issues have forced California utility PG&E to increase the prices it will pay for 2GWh of battery storage...
PG&E (operator)
Energy-Storage.News·3 years ago
Regulatory·state puc
CPUC approves California utility projects including PG&E’s 1.6GW/6.4GWh BESS
California: The CPUC has approved energy projects by investor-owned utilities, including 1.6GW/6.4GWh of battery storage (BESS) by PG&E.
CPUC (regulator)PG&E (operator)
Energy-Storage.News·3 years ago
Grid·capacity addition
PG&E proposes 6.4 GWh battery energy storage plan to California regulators
California's Pacific Gas and Electric (PG&E) is proposing to add nearly 1600 MW/6400 MWh of energy storage across nine projects in the...
Pacific Gas and Electric (operator)PG&E (operator)
Power Engineering·4 years ago
Grid·capacity addition
California utility PG&E proposes 1.6GW/6.4GWh of new battery storage across nine projects
Plans to procure energy from nine large-scale battery energy storage system (BESS) projects in California have been announced by Pacific Gas...
PG&E (operator)
Energy-Storage.News·4 years ago
Last updated 2026-03-14
View all articles