HL Solar
Lassen County, California · EIA plant ID 62655 · Operator: Madison Energy Investments LLC
Nameplate8MWSummer 8 MW
Generators1in service
Net generation12GWh12 mo to Dec 2025
Capacity factor18%solar units, summer MW
Heat rate—thermal plants only
First online2019
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2019 | 4.1 | 10.5% | — |
| 2020 | 11.3 | 16.9% | — |
| 2021 | 7 | 10.5% | — |
| 2022 | 12 | 18.0% | — |
| 2023 | 10.9 | 16.4% | — |
| 2024 | 11.5 | 17.2% | — |
| 2025 | 12.2 | 18.3% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| HLS | Solar Photovoltaic | PV | 7.6 | 7.6 | Jun 2019 | Operating | — | coming soon |
Owner / operator
Operator: Madison Energy Investments LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Madison Energy Investments LLC | 100.0% | 8 MW |
Nearby plants
Within 80 km.
| HL Power | 36 MW | 0.6 km |
| Amedee Geothermal Venture I | — | 15.5 km |
| High Sierra Cogeneration Plant | 6 MW | 18.8 km |
| PSREC/SIAD Solar | 3 MW | 27.4 km |
| Fish Springs | 125 MW | 41.2 km |
| North Valley | 37 MW | 67.7 km |