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600 MW Batteries (300 MW) + Solar Photovoltaic (300 MW) operating in Pinal, AZ
600 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2024
Operating Since
Coordinates
32.8675, -111.5715
County
Pinal, AZ
Nearby Plants
Forward-looking, asset-specific exposure analytics combining climate hazards, generation variability, and counterparty risk into a single decision-grade view. Powered by InfraRisk.
See the full risk decomposition + scenarios for this asset.
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 | Eleven Mile Solar Center, LLC | Ørsted A/S | — |
| Owner(s) | Eleven Mile Solar Center, LLC | Ørsted | — |
| Status | Operating | operating | — |
Eleven Mile Solar Center is a 600 MW hybrid solar and battery energy storage system (BESS) located in Pinal County, Arizona. The plant, which began operating in 2024, is owned by Ørsted, a company based in Denmark, and operated by Eleven Mile Solar Center, LLC. The facility utilizes both solar photovoltaic technology with single-axis tracking and batteries for energy storage. The BESS component has a storage capacity of 1200 MWh, with a duration of 4 hours, and uses lithium-ion battery (LIB) chemistry. The plant is connected to the Salt River Project balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
Eleven Mile Solar Center is ranked as the 15th largest solar plant in Arizona out of 47, and 51st nationally out of 514. In its latest year of operation, the plant generated 792,639 MWh, achieving a capacity factor of 15.1%. Financial data is available for the plant from LBNL, though specific details are not provided.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Salt River Project (SRP)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
39.3K MWh
Net Discharge
792.6K MWh
Annual Net Energy
15.1%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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Historic financial signal for this asset — PPA, LCOE, market value where reported. The base for forward bankability and insurance analytics on the InfraSure platform.
Data from 2024
$24.0/MWh
LCOE
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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