Clay Boswell
Coal power plant in Itasca County, Minnesota. 922.5 MW of nameplate capacity across 2 generators, operated by ALLETE, Inc..
Also known as Clay Boswell Energy Center · EIA plant 1893
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Key facts
- Capacity
- 922.5 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- May 1973First generator online
- Operator
- ALLETE, Inc.EIA operator ID 12647
- Grid
- MISOBalancing authority MISO
- Price nodes
- 3 MISO nodesResource nodes with prices
- Location
- Itasca County, MN47.2611, −93.6528
- EIA plant ID
- 1893EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Clay Boswell produces
Free · EIA-923Net generation, 2025
5.81 TWh
5,808,694 MWh, final
Capacity factor, 2025
71.8%
2024: 54.2%
January to July 2026
3.15 TWh
Provisional
Range, 2015 to 2025
4.2–7.5
TWh a year. Low 2020, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 6,466,481 | Not reported | 12 of 12 |
| 2001 | 6,947,707 | Not reported | 12 of 12 |
| 2002 | 7,266,941 | Not reported | 12 of 12 |
| 2003 | 7,270,592 | Not reported | 12 of 12 |
| 2004 | 6,334,400 | Not reported | 12 of 12 |
| 2005 | 7,248,194 | Not reported | 12 of 12 |
| 2006 | 7,124,945 | Not reported | 12 of 12 |
| 2007 | 6,713,973 | Not reported | 12 of 12 |
| 2008 | 7,069,246 | Not reported | 12 of 12 |
| 2009 | 6,152,653 | Not reported | 12 of 12 |
| 2010 | 6,269,474 | 66.7% | 12 of 12 |
| 2011 | 7,300,254 | 77.6% | 12 of 12 |
| 2012 | 7,260,677 | 77.0% | 12 of 12 |
| 2013 | 7,724,261 | 82.2% | 12 of 12 |
| 2014 | 7,359,661 | 78.3% | 12 of 12 |
| 2015 | 6,959,580 | 74.0% | 12 of 12 |
| 2016 | 7,450,423 | 79.0% | 12 of 12 |
| 2017 | 7,080,407 | 75.3% | 12 of 12 |
| 2018 | 7,275,605 | Not reported | 12 of 12 |
| 2019 | 833,841 | Not reported | 2 of 12 |
| 2020 | 4,203,377 | 51.8% | 12 of 12 |
| 2021 | 5,046,585 | 62.4% | 12 of 12 |
| 2022 | 5,121,336 | Not reported | 12 of 12 |
| 2023 | 5,042,118 | 62.3% | 12 of 12 |
| 2024 | 4,397,727 | 54.2% | 12 of 12 |
| 2025 | 5,808,694 | 71.8% | 12 of 12 |
| 2026 (provisional, partial year) | 3,149,716 | 67.0% | 7 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 · MISOEmissions
Free · EPA CAMPDCO₂, 2025
6.40M
US short tons. 2024: 4.98M
SO₂, 2025
588
US short tons
NOx, 2025
2,696
US short tons
CO₂ per MWh, calculated
1.10 t
About 2,202 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (1, 2, 3, 4), matched to EIA plant 1893 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
1,723
million gallons
Consumption, 2024
1,216
million gallons
Source
North Blackwater Lake
Surface, Fresh. Induced-draft tower
Watershed stress
Very low/none · 0.146
USGS SUI, HUC12 Blackwater Lake-Mississippi River
24 of 24 cooling months report withdrawal. SUI of the HUC12 containing the plant. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 3 | Conventional Steam Coal | 364.5 | May 1973 |
| 4 | Conventional Steam Coal | 558.0 | May 1980 |
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 ALLETE, Inc. 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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Power plants near Clay Boswell
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Questions about Clay Boswell
How much power does Clay Boswell produce?
Clay Boswell reported 5,808,694 MWh (5.81 TWh) of net generation in 2025, a 71.8% capacity factor on 922.5 MW of nameplate capacity. From January to July 2026 it reported 3.15 TWh, which is provisional.
Where is Clay Boswell?
Clay Boswell is in Itasca County, Minnesota, at 47.2611, −93.6528. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Clay Boswell?
EIA-860M for August 2026 lists ALLETE, Inc. as the operator (EIA operator ID 12647). The operator is not always the owner.
When did Clay Boswell start operating?
Its first generator began operating in May 1973, according to EIA-860M.
Does InfraMap have power prices for Clay Boswell?
Yes. InfraMap has MISO day-ahead and real-time prices at 3 price nodes linked to Clay Boswell, 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)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page