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SOLAR FARMS · BATTERY STORAGESienna 2 Solar and Storage Project
Sienna 2 Solar and Storage Project is a 110 MW planned solar and battery storage plant in San Bernardino County, California, operated by 44ST 8ME LLC.
Plant statusIn planning
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingTarget Mar 2029 (not yet reached)
- Closed (not yet reached)
Planned start of operation reported to EIA: Mar 2029.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| 44STA | Solar Photovoltaic | 55 MW | Planned, approvals not yet sought |
| 44STB | Batteries | 55 MW | Planned, approvals not yet sought |
Plant details
- Operator
- 44ST 8ME LLC
- Location
- San Bernardino County, California
- Balancing authority
- CISO
- Sector
- IPP Non-CHP
- Capacity
- Planned: 110 MW
- EIA plant ID
- 68486
Location
34.5067, -116.8901
Nearby power plants
- Sienna Solar FarmSolar farms, Battery storage · 400 MW · 1.7 mi
- Lone Valley Solar Park II LLCSolar farms · 20.0 MW · 7.0 mi
- Lone Valley Solar Park I LLCSolar farms · 10.0 MW · 7.6 mi
- Longboat Solar, LLCSolar farms · 20.0 MW · 10.0 mi
- Powhatan Solar Power Generation StationSolar farms · 1.5 MW · 14.5 mi
- Foundation Cemex BMQWind farms · 3.0 MW · 15.0 mi
- NunnSolar farms · 1.0 MW · 15.0 mi
- BBARWASolar farms · 1.9 MW · 17.0 mi
- Otoe Solar Power Generation Station 1 LLSolar farms · 1.5 MW · 17.4 mi
- Navajo Solar Power Generation Station 1Solar farms · 1.5 MW · 17.4 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