Vineyard Wind 1
Dukes County, Massachusetts · EIA plant ID 63093 · Operator: Vineyard Wind 1 LLC
Nameplate800MWSummer 800 MW
Generators1in service
Net generation866GWh12 mo to Aug 2026
Capacity factor29%wind units, summer MW
Heat rate—thermal plants only
First online2026
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), wind units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
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 |
|---|---|---|---|---|---|---|---|---|
| VW01 | Offshore Wind Turbine | WS | 800 | 800 | Apr 2026 | Operating | — | coming soon |
Owner / operator
Operator: Vineyard Wind 1 LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Vineyard Wind 1 LLC | 100.0% | 800 MW |
Nearby plants
Within 80 km.
| Rangeley | 3 MW | 15.6 km |
| Nunnepog | 1 MW | 34.7 km |
| Katama Farm | 1 MW | 35 km |
| West Tisbury Generating Facility | retired | 40 km |
| Oak Bluffs Diesel Generating Facility | retired | 43.3 km |
| Nantucket Hybrid | 22 MW | 43.4 km |