Vonore Battery Energy Storage SystemUnder construction
Monroe County, Tennessee · EIA plant ID 64255 · Operator: Tennessee Valley Authority
20 MW under construction (Batteries), first expected Dec 2026 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 20 MW building
Net generation—GWh12 mo
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online—
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.
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 |
|---|---|---|---|---|---|---|---|---|
| VBESS | Batteries | BA | 20 | 20 | planned Dec 2026 | Under construction | — | coming soon |
Owner / operator
Operator: Tennessee Valley Authority. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Primient Loudon Plant | 61 MW | 13.9 km |
| Fort Loudoun | 153 MW | 19.8 km |
| Chilhowee | 50 MW | 21.8 km |
| SR Maryville | 1 MW | 24.4 km |
| SR Blount, LLC | 2 MW | 29.4 km |
| Calderwood | 157 MW | 29.9 km |