THREE SISTERS Solar Generation and BESS (68298_THSI1)
THREE SISTERS Solar Generation and BESS is a 300.0 MW battery interconnection project in Pinal, Arizona with a current status of active.
300.0 MWCapacity
ActiveStatus
AZPSMarket
BatteryTechnology
Project facts
| Canonical name | THREE SISTERS Solar Generation and BESS |
|---|---|
| Queue ID | 68298_THSI1 |
| Status | active |
| Source status | (L) Regulatory approvals pending. Not under construction |
| Market | AZPS |
| Technology | Battery |
| Capacity | 300.0 MW |
| State | Arizona |
| County | Pinal |
| Point of interconnection | — |
| Requested (queue) date | — |
| Proposed in-service date | 2029-04-01 |
| Operational date | — |
| Withdrawn date | — |
| Developer | — |
| Utility / transmission owner | THSI bn, LLC |
What changed
| Observed | Field | Old value | New value | Materiality |
|---|---|---|---|---|
| 2026-08-02 | new_project | — | active | high |
Explore related data
Source last checked2026-10-02
Data last materially changed2026-10-02
Page data generated2026-10-11
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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