Superstition Energy Storage (66333_BESS4)
Superstition Energy Storage is a 90.0 MW battery interconnection project in Maricopa, Arizona with a current status of operational.
90.0 MWCapacity
OperationalStatus
SRPMarket
BatteryTechnology
Project facts
| Canonical name | Superstition Energy Storage |
|---|---|
| Queue ID | 66333_BESS4 |
| Status | operational |
| Source status | (OP) Operating |
| Market | SRP |
| Technology | Battery |
| Capacity | 90.0 MW |
| State | Arizona |
| County | Maricopa |
| Point of interconnection | — |
| Requested (queue) date | — |
| Proposed in-service date | — |
| Operational date | 2024-07-01 |
| Withdrawn date | — |
| Developer | — |
| Utility / transmission owner | Superstition Energy Storage, LLC |
What changed
| Observed | Field | Old value | New value | Materiality |
|---|---|---|---|---|
| 2026-08-02 | new_project | — | operational | high |
Explore related data
Source last checked2026-08-03
Data last materially changed2026-08-03
Page data generated2026-08-28
Provenance: U.S. EIA — Form EIA-860M generator inventory (operating + planned). Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.
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