Grundy Center City Light Plant
Oil power plant in Grundy County, Iowa. 8.7 MW of nameplate capacity across 3 generators, operated by Grundy Center Mun Light & Power.
Also known as EIA plant 1145
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Key facts
- Capacity
- 8.7 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- November 1963First generator online
- Operator
- Grundy Center Mun Light & PowerEIA operator ID 7743
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 SPP nodeResource nodes with prices
- Location
- Grundy County, IA42.3631, −92.7723
- EIA plant ID
- 1145EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Grundy Center City Light Plant produces
Free · EIA-923Net generation, 2025
109 MWh
109 MWh, final
Capacity factor, 2025
0.1%
2024: Not reported
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
29.0–846.0
MWh a year. Low 2015, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | 167 | Not reported | 12 of 12 |
| 2002 | 73 | Not reported | 12 of 12 |
| 2003 | 371 | Not reported | 12 of 12 |
| 2004 | 64 | Not reported | 12 of 12 |
| 2005 | 45 | Not reported | 12 of 12 |
| 2006 | 143 | Not reported | 12 of 12 |
| 2007 | 64 | Not reported | 12 of 12 |
| 2008 | 64 | Not reported | 12 of 12 |
| 2009 | 44 | Not reported | 12 of 12 |
| 2010 | 44 | 0.1% | 12 of 12 |
| 2011 | 32 | 0.0% | 12 of 12 |
| 2012 | 44 | 0.1% | 12 of 12 |
| 2013 | 125 | 0.2% | 12 of 12 |
| 2014 | 96 | 0.1% | 12 of 12 |
| 2015 | 29 | 0.0% | 12 of 12 |
| 2016 | 36 | 0.0% | 12 of 12 |
| 2017 | 31 | 0.0% | 12 of 12 |
| 2018 | 98 | 0.1% | 12 of 12 |
| 2019 | 301 | 0.4% | 12 of 12 |
| 2020 | 81 | 0.1% | 12 of 12 |
| 2021 | 846 | 1.1% | 12 of 12 |
| 2022 | 388 | 0.5% | 12 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | Not reported | Not reported | 0 of 12 |
| 2025 | 109 | 0.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · SPPEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| IC1 | Petroleum Liquids | 2.2 | November 1963 |
| IC2 | Petroleum Liquids | 3.5 | March 1972 |
| IC3 | Petroleum Liquids | 3.0 | October 1990 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Grundy Center Mun Light & Power as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Grundy Center City Light Plant
How much power does Grundy Center City Light Plant produce?
Grundy Center City Light Plant reported 109 MWh (109 MWh) of net generation in 2025, a 0.1% capacity factor on 8.7 MW of nameplate capacity.
Where is Grundy Center City Light Plant?
Grundy Center City Light Plant is in Grundy County, Iowa, at 42.3631, −92.7723. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Grundy Center City Light Plant?
EIA-860M for August 2026 lists Grundy Center Mun Light & Power as the operator (EIA operator ID 7743). The operator is not always the owner.
When did Grundy Center City Light Plant start operating?
Its first generator began operating in November 1963, according to EIA-860M.
Does InfraMap have power prices for Grundy Center City Light Plant?
Yes. InfraMap has SPP day-ahead and real-time prices at 1 price node linked to Grundy Center City Light Plant, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- SPP day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page