United States › Power plants › Battery storage › Arizona
BATTERY STORAGEFlatland Storage
Flatland Storage is a 200 MW operating battery storage site in Pinal County, Arizona, operated by Flatland Storage LLC. Its batteries store up to 800 MWh.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| FS01 | Batteries | 200 MW 800 MWh |
Plant details
- Operator
- Flatland Storage LLC
- Location
- Pinal County, Arizona
- Balancing authority
- SRP
- Sector
- IPP Non-CHP
- Capacity
- Operating: 200 MW
- First unit online
- Dec 2025
- EIA plant ID
- 68529
Location
32.9192, -111.4989
Nearby power plants
- Coolidge Generation StationGas power plants · 1,320 MW · 0.3 mi
- Brittlebush SolarSolar farms · 200 MW · 0.7 mi
- Storey Solar and StorageSolar farms, Battery storage · 210 MW · 2.1 mi
- Valley Farms Energy CenterBattery storage · 400 MW · 3.1 mi
- Saint Energy Storage II LLCBattery storage · 100 MW · 3.5 mi
- Saint SolarSolar farms · 100 MW · 3.7 mi
- Pinal Central Energy Center HybridSolar farms, Battery storage · 30.0 MW · 4.3 mi
- Selma Energy CenterSolar farms, Battery storage · 275 MW · 5.0 mi
- SundanceGas power plants · 695 MW · 5.3 mi
- East Line SolarSolar farms · 100 MW · 6.3 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem