Roadrunner Reserve Phase 2 — Plant Summary
- EIA Plant ID
- 68937
- Capacity
- 200 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Under construction
- Location
- AZ
- Operating Since
- —
- Generators
- 1
- Operator
- Tucson Electric Power Co
- Parent Company
- Fortis
- Balancing Authority
- Tucson Electric Power Company
- ISO/RTO
- —
- NERC Region
- WECC
Roadrunner Reserve Phase 2
Under constructionBESS
Ranked #26 of 55 BESS plants in AZ#179 of 837 nationally
200 MW BESS under construction in —, AZ — Tucson Electric Power Company
EIA
200 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Location
Coordinates
32.0730, -100.8210
County
—, AZ
Nearby Plants
- Jameson Gas Processing PlantNatural Gas1.8 MW · 12.5 km
- Goat Wind LPWind149.6 MW · 13.7 km
- Bluebell Solar IISolar115 MW · 20.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Tucson Electric Power Co | Tucson Electric Power | — |
| Owner(s) | Tucson Electric Power Co | Fortis | — |
| Status | Under construction | — | — |
Ownership Chain
About
Roadrunner Reserve Phase 2 is a 200 MW battery energy storage system located in Arizona. The plant, identified by plant ID 68937, is owned by Fortis, a Canadian company, and operated by Tucson Electric Power Co. It consists of a single generator utilizing batteries as its primary fuel source. The plant ranks 34th out of 47 power plants in Arizona and 271st out of 514 nationally.
The facility operates within the Western Electricity Coordinating Council (WECC) NERC region and is under the balancing authority of Tucson Electric Power Company. The plant's primary fuel is electricity (MWH) used to charge the batteries.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Tucson Electric Power Company
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
General
Tucson Electric Power to build another big battery system to meet peak power demand
Tucson Electric Power plans to build a second, large battery system in southeast Tucson to store solar and other energy until later in the day to meet peak...
Arizona Daily Star·1 years ago
General
Key Criteria that Drive Large-Scale Energy Storage Success
A Battery Energy Storage System (BESS) can elevate a utility's fleet, stabilize the supply of electricity, reduce costs, and optimize revenue.
POWER Magazine·2 years ago
General
Combining EPC, O&M provider means ‘less downtime, more efficient operations’ for Arizona utility’s biggest BESS
Energy-Storage.news hears how DEPCOM believes offering combined EPC as well as O&M services is a compelling proposition.
Energy-Storage.News·2 years ago
General
Roadrunner Reserve energy storage system to be one of largest in Arizona
Canadian Solar's e-Storage has entered the supply and integration contract for 1 GWh DC of energy storage solutions for DEPCOM Power and...
pv magazine USA·2 years ago
Last updated 2026-03-26
View all 10 articles