Callisto I Energy Center (66338_CALL1)
Callisto I Energy Center is a 223.4 MW battery interconnection project in Harris, Texas with a current status of operational.
223.4 MWCapacity
OperationalStatus
ERCOMarket
BatteryTechnology
Project facts
| Canonical name | Callisto I Energy Center |
|---|---|
| Queue ID | 66338_CALL1 |
| Status | operational |
| Source status | (OP) Operating |
| Market | ERCO |
| Technology | Battery |
| Capacity | 223.4 MW |
| State | Texas |
| County | Harris |
| Point of interconnection | — |
| Requested (queue) date | — |
| Proposed in-service date | — |
| Operational date | 2024-08-01 |
| Withdrawn date | — |
| Developer | — |
| Utility / transmission owner | Callisto II Energy Center LLC |
What changed
| Observed | Field | Old value | New value | Materiality |
|---|---|---|---|---|
| 2026-08-02 | new_project | — | operational | high |
Explore related data
Source last checked2026-10-02
Data last materially changed2026-10-02
Page data generated2026-10-12
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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