Walmart Casa GrandeRetired
Pinal County, Arizona · EIA plant ID 57939 · Operator: SolarCity Corporation
×2 MW solar retired since 2020 (latest Sep 2023)
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online—
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), primary-fuel 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) |
|---|---|---|---|
| 2011 | 2.1 | 26.8% | — |
| 2012 | 3.7 | 28.0% | — |
| 2013 | 3.5 | 20.2% | — |
| 2014 | 3.3 | 18.9% | — |
| 2015 | 3.2 | 18.0% | — |
| 2016 | 3.2 | 18.4% | — |
| 2017 | 3 | 17.1% | — |
| 2018 | 1.4 | 8.2% | — |
| 2019 | 2.6 | 15.0% | — |
| 2020 | 2.2 | 12.3% | — |
| 2021 | 2.2 | 12.5% | — |
| 2022 | 2.4 | 13.5% | — |
| 2023 | 1.8 | 10.2% | — |
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 | 1 | 1 | Jun 2011 | Retired Sep 2023 | — | coming soon |
| 2 | Solar Photovoltaic | PV | 1 | 1 | Jun 2011 | Retired Sep 2023 | — | coming soon |
Owner / operator
Operator: SolarCity Corporation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Desert Basin | 745 MW | 4.5 km |
| Vista Grande HS at Casa Grande | 1 MW | 6.1 km |
| Union HS at Casa Grande | 2 MW | 8.4 km |
| Eleven Mile Solar Center | 600 MW | 16.8 km |
| Sundance | 695 MW | 18.3 km |
| Central Line Solar, LLC | 100 MW | 19.4 km |