Sierra Pinta BESS — Plant Summary
- EIA Plant ID
- 67973
- Capacity
- 113 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Testing
- Location
- Yuma, AZ
- Operating Since
- —
- Generators
- 1
- Operator
- Leeward Asset Management, LLC
- Parent Company
- —
- Balancing Authority
- Arizona Public Service Company
- ISO/RTO
- —
- NERC Region
- WECC
Sierra Pinta BESS
TestingBESS
Ranked #38 of 55 BESS plants in AZ#288 of 837 nationally
113 MW BESS testing in Yuma, AZ — Arizona Public Service Company
EIA
113 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Location
Coordinates
32.9942, -113.5098
County
Yuma, AZ
Nearby Plants
- White Wing SolarSolar179 MW · 0.1 km
- Agua Caliente Solar ProjectSolar347.7 MW · 2.3 km
- Elisabeth SolarSolar350 MW · 4.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Leeward Asset Management, LLC | — | — |
| Owner(s) | Leeward Asset Management, LLC | — | — |
| Status | Testing | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Sierra Pinta BESS is a battery energy storage system located in Yuma County, Arizona. The plant has a total capacity of 113 MW and consists of a single generator. It is owned and operated by Leeward Asset Management, LLC. The plant's primary fuel is electricity (MWH), which it uses to charge and discharge its batteries.
Sierra Pinta BESS operates within the Arizona Public Service Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. According to state rankings, the plant is the 46th largest out of 47 plants in Arizona. Nationally, it is ranked 453 out of 514 plants.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Arizona Public Service Company
Grid Voltage
500 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
−2.1K MWh
Net Charging
—
Annual Net Energy
—
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
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (5)Beta
Industry·corporate
BrightNight breaks ground on new Arizona energy center | Projects Weekly
Projects Weekly highlights the partnership between El Paso Electric and Base Power for a groundbreaking home battery pilot program.
BrightNight (developer)El Paso Electric (other)
Solar Builder·4 weeks ago
Industry·corporate
Yuma County, Arizona: BrightNight and LRE progress BESS
Two BESS projects in Yuma County, Arizona, one from BrightNight, and one from Leeward Renewable Energy, have reached significant milestones.
BrightNight (developer)Leeward Renewable Energy (operator)
Energy-Storage.News·4 weeks ago
Industry·corporate
Leeward Renewable Energy’s first standalone BESS enters operations in California
Leeward Renewable Energy's (LRE) 126MW/504MWh Antelope Valley battery energy storage system (BESS), located in Kern County, California, has reached commercial...
Leeward Renewable Energy (operator)
Energy-Storage.News·10 months ago
Industry·corporate
LRE Brings First Stand-Alone Antelope Valley BESS Battery Storage Facility Online, Furthering Efforts to Strengthen Grid Reliability in California
The 126 MW energy storage system in Kern County brings LRE's total capacity online in California to 596 MW—continuing to help meet the state's...
LRE (operator)
Business Wire·10 months ago
Last updated 2026-03-14
View all 5 articles