Waddell
Maricopa County, Arizona · EIA plant ID 7164 · Operator: Central Arizona Water Conservation Dist
Nameplate40MWSummer 40 MW
Generators4in service
Net generation-13GWh12 mo to Aug 2026
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online1993
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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.
No capacity factor available.
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) |
|---|---|---|---|
| 2002 | 48.1 | — | — |
| 2003 | 43 | — | — |
| 2004 | 45.7 | — | — |
| 2005 | 53.6 | — | — |
| 2006 | 45.5 | — | — |
| 2007 | 47.4 | — | — |
| 2008 | 45.9 | — | — |
| 2009 | 42.6 | — | — |
| 2010 | 40.3 | — | — |
| 2011 | 51.6 | — | — |
| 2012 | 49.8 | — | — |
| 2013 | 38.5 | — | — |
| 2014 | 31 | — | — |
| 2015 | 43.4 | — | — |
| 2016 | 42.8 | — | — |
| 2017 | -40.2 | — | — |
| 2018 | -29.9 | — | — |
| 2019 | -59.2 | — | — |
| 2020 | -11.4 | — | — |
| 2021 | -20.9 | — | — |
| 2022 | -10.9 | — | — |
| 2023 | -19.6 | — | — |
| 2024 | -14.3 | — | — |
| 2025 | -18.7 | — | — |
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 |
|---|---|---|---|---|---|---|---|---|
| PG3 | Hydroelectric Pumped Storage | PS | 10 | 10 | Apr 1993 | Operating | — | coming soon |
| PG6 | Hydroelectric Pumped Storage | PS | 10 | 10 | Aug 1993 | Operating | — | coming soon |
| PG7 | Hydroelectric Pumped Storage | PS | 10 | 10 | Jun 1993 | Operating | — | coming soon |
| PS1 | Hydroelectric Pumped Storage | PS | 10 | 10 | Oct 1993 | Operating | — | coming soon |
Owner / operator
Operator: Central Arizona Water Conservation Dist. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| U S Bureau of Reclamation | 100.0% | 40 MW |
Nearby plants
Within 80 km.
| Lake Pleasant WTP | 7 MW | 4 km |
| Beehive Energy Storage | 250 MW | 4.9 km |
| Westwing | 200 MW | 15.4 km |
| Desert Bloom | 150 MW | 16.4 km |
| Scatter Wash 1 | 170 MW | 22.9 km |
| Scatter Wash 2 | 85 MW | 22.9 km |