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- Combustion
- Under construction
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Under construction
- Operating
Aberdeen CT: location and 1 exact-grade project within 25 km. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Aberdeen CT
Power plant · Gas, combustion turbine
Key facts
Power plant · Gas, combustion turbineran 6% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1978
- Net generation, 2025
- 56,170 MWh
- Grid
- 34 kV to NorthWestern Energy - (SD) (SWPP)
- Location
- Brown County, South Dakota
- Operated by
- NorthWestern Energy - (SD)
Output
- Gas
- Oil
Details
Who’s behind it
- Owner
- Northwestern Corp
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- Technology
- Gas, combustion turbine source: “Natural Gas Fired Combustion Turbine”
- Age
- 48 years since 1978
- Unused energy
- 916 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
- Heat rate
- 12,349 Btu/kWh 2025
All 7 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Grid |
|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 693,663 |
| Capacity factor, 2025 | 0.058 |
| Heat rate (Btu/kWh), 2025 | 12,349.4 |
| Net generation (MWh), 2025 | 56,170 |
| Balancing authority code | SWPP |
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| NorthWestern Energy - (SD) | Operator | EIA-860M | ||
| NORTHWESTERN CORP | Owner | 100.0% | 31 Dec 2023 | EPA GHGRP |
Timeline
- In service · EIA-860M
Sources
4 sourcesSources EIA-860M · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Sources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Around this plant
Nearby
within 25 km| Project | Kind | Away | MW |
|---|---|---|---|
| Aberdeen CT Under construction | Gas, combustion turbine | 0.0 km | 32 |