Bob Glanzer Generating Station
Natural gas power plant · Beadle County, South Dakota
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Internal Combustion Engine
- Operator
- NorthWestern Energy - (SD)
- County
- Beadle County
- Generating units
- 6
- Share of state capacity
- 0.90%
- Rank among natural gas plants in South Dakota
- #7 of 11
- EIA plant code
- 65295
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| HG1 | Natural Gas Internal Combustion Engine | 12 MW | 9.2 MW | 2022 | Operating |
| HG2 | Natural Gas Internal Combustion Engine | 12 MW | 9.2 MW | 2022 | Operating |
| HG3 | Natural Gas Internal Combustion Engine | 12 MW | 9.2 MW | 2022 | Operating |
| HG4 | Natural Gas Internal Combustion Engine | 12 MW | 9.2 MW | 2022 | Operating |
| HG5 | Natural Gas Internal Combustion Engine | 12 MW | 9.2 MW | 2022 | Operating |
| HG6 | Natural Gas Internal Combustion Engine | 12 MW | 9.2 MW | 2022 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in South Dakota
| Beethoven Wind | Wind | 80 MW |
| Fall River Solar, LLC | Solar | 80 MW |
| Watertown Power Plant | Other | 68 MW |
| Wessington Springs | Wind | 51 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 69 MW solar plant and a 69 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All South Dakota power plants · What South Dakota actually generates