Waddell
Pumped storage power plant in Maricopa County, Arizona. 40 MW of nameplate capacity across 4 generators, operated by Central Arizona Water Conservation Dist.
Also known as New Waddell Pump-Generating Plant · EIA plant 7164
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 40 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- April 1993First generator online
- Operator
- Central Arizona Water Conservation DistEIA operator ID 2850
- Grid
- WALCBalancing authority WALC
- Price nodes
- None linkedNo verified ISO node
- Location
- Maricopa County, AZ33.8447, −112.2714
- EIA plant ID
- 7164EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Waddell produces
Free · EIA-923Net generation, 2025
−18.7 GWh
−18,727 MWh, final
Capacity factor, 2025
Not reported
2024: Not reported
January to July 2026
−21.0 GWh
Provisional
Range, 2015 to 2025
−59.2–43.4
GWh a year. Low 2019, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | 48,053 | Not reported | 12 of 12 |
| 2003 | 43,030 | Not reported | 12 of 12 |
| 2004 | 45,747 | Not reported | 12 of 12 |
| 2005 | 53,645 | Not reported | 12 of 12 |
| 2006 | 45,542 | Not reported | 12 of 12 |
| 2007 | 47,380 | Not reported | 12 of 12 |
| 2008 | 45,875 | Not reported | 12 of 12 |
| 2009 | 42,550 | Not reported | 12 of 12 |
| 2010 | 40,309 | Not reported | 12 of 12 |
| 2011 | 51,588 | Not reported | 12 of 12 |
| 2012 | 49,810 | Not reported | 12 of 12 |
| 2013 | 38,503 | Not reported | 12 of 12 |
| 2014 | 31,047 | Not reported | 12 of 12 |
| 2015 | 43,432 | Not reported | 12 of 12 |
| 2016 | 42,832 | Not reported | 12 of 12 |
| 2017 | −40,193 | Not reported | 12 of 12 |
| 2018 | −29,888 | Not reported | 12 of 12 |
| 2019 | −59,229 | Not reported | 12 of 12 |
| 2020 | −11,352 | Not reported | 12 of 12 |
| 2021 | −20,943 | Not reported | 12 of 12 |
| 2022 | −10,939 | Not reported | 12 of 12 |
| 2023 | −19,561 | Not reported | 12 of 12 |
| 2024 | −14,349 | Not reported | 12 of 12 |
| 2025 | −18,727 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | −21,012 | Not reported | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| PG3 | Hydroelectric Pumped Storage | 10.0 | April 1993 |
| PG6 | Hydroelectric Pumped Storage | 10.0 | August 1993 |
| PG7 | Hydroelectric Pumped Storage | 10.0 | June 1993 |
| PS1 | Hydroelectric Pumped Storage | 10.0 | October 1993 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Central Arizona Water Conservation Dist as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Questions about Waddell
How much power does Waddell produce?
Waddell reported −18,727 MWh (−18.7 GWh) of net generation in 2025. From January to July 2026 it reported −21.0 GWh, which is provisional.
Where is Waddell?
Waddell is in Maricopa County, Arizona, at 33.8447, −112.2714. It is in the Western Area Power Administration - Desert Southwest Region balancing area (WALC).
Who operates Waddell?
EIA-860M for August 2026 lists Central Arizona Water Conservation Dist as the operator (EIA operator ID 2850). The operator is not always the owner.
When did Waddell start operating?
Its first generator began operating in April 1993, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page