Cape Cod Air Force Station - 6 SWS
Barnstable County, Massachusetts · EIA plant ID 58661 · Operator: US Air Force
Nameplate3MWSummer 3 MW
Generators2in service
Net generation6GWh12 mo to Aug 2026
Capacity factor21%wind units, summer MW
Heat rate—thermal plants only
First online2014
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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2014 | 7.8 | 26.3% | — |
| 2015 | 8.3 | 27.9% | — |
| 2016 | 9 | 30.1% | — |
| 2017 | 9.2 | 31.0% | — |
| 2018 | 8 | 26.9% | — |
| 2019 | 6.3 | 21.2% | — |
| 2020 | 8.6 | 28.9% | — |
| 2021 | 8 | 26.8% | — |
| 2022 | 8.2 | 27.7% | — |
| 2023 | 7 | 23.6% | — |
| 2024 | 4.6 | 15.5% | — |
| 2025 | 6.6 | 22.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GE-3 | Onshore Wind Turbine | WT | 1.7 | 1.7 | Jan 2014 | Operating | — | ge 1.68-82.5 |
| GE-4 | Onshore Wind Turbine | WT | 1.7 | 1.7 | Jan 2014 | Operating | — | ge 1.68-82.5 |
Owner / operator
Operator: US Air Force. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| US Air Force | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Renew Canal 1 CSG LLC | 1 MW | 2.2 km |
| Canal | 1,495 MW | 3.1 km |
| 665 Scenic Highway | 6 MW | 3.3 km |
| Cedarville CSG | 3 MW | 5.7 km |
| Sandwich | 4 MW | 6.2 km |
| Future Generation Wind | 8 MW | 6.8 km |