Lake Pleasant WTP
Maricopa County, Arizona · EIA plant ID 58539 · Operator: GSRP
Nameplate7MWSummer 6 MW
Generators1in service
Net generation14GWh12 mo to Dec 2025
Capacity factor26%solar units, summer MW
Heat rate—thermal plants only
First online2012
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) |
|---|---|---|---|
| 2013 | 11.1 | 79.3% | — |
| 2014 | 15 | 106.8% | — |
| 2015 | 13.3 | 25.3% | — |
| 2016 | 15.2 | 28.9% | — |
| 2017 | 14.9 | 28.4% | — |
| 2018 | 14.8 | 28.1% | — |
| 2019 | 14.6 | 27.8% | — |
| 2020 | 15 | 28.4% | — |
| 2021 | 14.5 | 27.6% | — |
| 2022 | 14.9 | 28.4% | — |
| 2023 | 14.4 | 27.4% | — |
| 2024 | 12.9 | 24.6% | — |
| 2025 | 13.9 | 26.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 6.5 | 6 | Dec 2012 | Operating | — | coming soon |
Owner / operator
Operator: GSRP. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wells Fargo Equipment Finance Inc | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| Beehive Energy Storage | 250 MW | 3.7 km |
| Waddell | 40 MW | 4 km |
| Westwing | 200 MW | 14.3 km |
| Desert Bloom | 150 MW | 15.1 km |
| Scatter Wash 1 | 170 MW | 18.9 km |
| Scatter Wash 2 | 85 MW | 18.9 km |