Storey Solar and Storage — Plant Summary
- EIA Plant ID
- 65956
- Capacity
- 210 MW
- Primary Fuel
- Solar
- Technology
- Batteries, Solar Photovoltaic
- Status
- Operating
- Location
- Pinal, AZ
- Operating Since
- 2023
- Generators
- 2
- Operator
- Storey Energy Center, LLC
- Parent Company
- NextEra Energy
- Annual Generation
- 300,787 MWh
- Capacity Factor
- 16.4%
- Balancing Authority
- Salt River Project
- ISO/RTO
- —
- NERC Region
- WECC
Storey Solar and Storage
OperatingBESSSolarHybrid
Ranked #10 of 104 Solar plants in AZ#296 of 7447 nationally
210 MW Batteries (88 MW) + Solar Photovoltaic (122 MW) operating in Pinal, AZ — Salt River Project
EIAGEM
210 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2023
Operating Since
Location
Coordinates
32.8882, -111.4978
County
Pinal, AZ
Nearby Plants
- Homer Solar Energy CenterSolar90 MW · 0.4 km
- Saint SolarSolar100 MW · 2.5 km
- Saint Energy Storage II LLCBESS100 MW · 2.6 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Storey Energy Center, LLC | NextEra Energy Inc [100%] | — |
| Owner(s) | Storey Energy Center, LLC | NextEra Energy | — |
| Status | Operating | operating | — |
Ownership Chain
About
Storey Solar and Storage is a hybrid power plant located in Pinal County, Arizona. The facility, owned by NextEra Energy and operated by Storey Energy Center, LLC, began operations in 2023. It has a total capacity of 210 MW and consists of two generators utilizing both solar photovoltaic technology and battery energy storage. The battery energy storage system (BESS) has a capacity of 264 MWh, providing 3 hours of duration and employing lithium-ion battery chemistry (LIB). The solar array uses single-axis tracking.
The plant's primary fuel source is listed as MWH. In its latest year of operation, Storey Solar and Storage generated 300,787 MWh, achieving a capacity factor of 16.4%. The plant operates within the Salt River Project balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Storey Solar and Storage is ranked as the 31st largest power plant in Arizona out of 47, and 251st nationally out of 514. Financial data indicates a power purchase agreement (PPA) price of $18.31 per MWh.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Salt River Project
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
16.4K MWh
Latest Month
300.8K MWh
Annual Generation
16.4%
Capacity Factor
Financial DataBeta
Source: FERC Electric Quarterly Reports, LBNL Utility-Scale SolarHIGH
$14.4/MWh
PPA Price
Storey Energy Center, LLC
Contract Seller
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
General
Mystery site for 4.3-gigawatt energy hub has southwestern Pennsylvania officials wondering
NextEra Energy Transmission MidAtlantic plans a 107.5-mile power line through Greene and Fayette counties as the company scouts sites for a...
The Business Journals·2 days ago
General
Spud Valley solar project on track to build in Alamosa County
NextEra Energy Resource's impressive solar project called Spud Valley Energy Center is making its way through the process at Alamosa County...
The Alamosa News·2 weeks ago
General
Uproar Over Reduced Permit Fees for Solar Developers in Oklahoma
NextEra Energy's 2,000-acre solar farm under construction in northwest Oklahoma is set to become one of the state's largest renewable energy...
AGDAILY·3 weeks ago
General
NextEra Energy Defends $300M Solar Project Amid Tax Debate
NextEra Energy says Little Ashdown Solar will create construction jobs and tax revenue, while critics call it corporate welfare.
Arkansas Business·1 months ago
Last updated 2026-03-26
View all 10 articles