Roadrunner Reserve Phase 2
Battery storage project in Pima County, Arizona. 200 MW of nameplate capacity across 1 generator, operated by Tucson Electric Power Co.
Also known as EIA plant 68937
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 200 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- June 2026First generator online
- Operator
- Tucson Electric Power CoEIA operator ID 24211
- Grid
- TEPCBalancing authority TEPC
- Price nodes
- None linkedNo verified ISO node
- Location
- Pima County, AZ32.0730, −110.8210
- EIA plant ID
- 68937EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Roadrunner Reserve Phase 2 produces
Free · EIA-923Net generation, 2025
Not reported
Not reported MWh, final. 0 of 12 months reported
Battery discharge, 2025
Not reported
Charge Not reported
January to July 2026
−7.66 GWh
Provisional. 2 of 7 months reported
| 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 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | Not reported | Not reported | 0 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | Not reported | Not reported | 0 of 12 |
| 2025 | Not reported | Not reported | 0 of 12 |
| 2026 (provisional, partial year) | −7,658 | Not reported | 2 of 7 |
* 2026 covers January to July and is provisional. Battery plants can report negative net generation, when charging uses more energy than they discharge.
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 |
|---|---|---|---|
| RDR2 | Batteries | 200.0 | June 2026 |
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 Tucson Electric Power Co 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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Power plants near Roadrunner Reserve Phase 2
More plants operated by Tucson Electric Power Co
Questions about Roadrunner Reserve Phase 2
Where is Roadrunner Reserve Phase 2?
Roadrunner Reserve Phase 2 is in Pima County, Arizona, at 32.0730, −110.8210. It is in the Tucson Electric Power Company balancing area (TEPC).
Who operates Roadrunner Reserve Phase 2?
EIA-860M for August 2026 lists Tucson Electric Power Co as the operator (EIA operator ID 24211). The operator is not always the owner.
When did Roadrunner Reserve Phase 2 start operating?
Its first generator began operating in June 2026, 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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page