Great Kiskadee Storage
Hidalgo County, Texas · EIA plant ID 68189 · Operator: Great Kiskadee Storage, LLC
Nameplate100MWSummer 100 MW
Generators1in service
Net generation-7GWh12 mo to Aug 2026
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online2025
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2025 | -7.2 | — | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GKDBS | Batteries | BA | 100 | 100 | Feb 2025 | Operating | — | coming soon |
Owner / operator
Operator: Great Kiskadee Storage, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| GridFlex Storage, LLC | 60.0% | 60 MW |
| Apex SA Investor | 40.0% | 40 MW |
Nearby plants
Within 80 km.
| Ridge Rd | 9 MW | 10.2 km |
| WAL5165 | 1 MW | 10.7 km |
| HEB00038 | 1 MW | 11 km |
| SMT Alamo LLC | 10 MW | 15.2 km |
| Lower Rio Energy Storage | 60 MW | 16 km |
| Ignacio Grid Energy Storage System | 100 MW | 16.8 km |