Dam 2
Hydro power plant in Desha County, Arkansas. 102.6 MW of nameplate capacity across 3 generators, operated by Arkansas Electric Coop Corp.
Also known as Wilbur D. Mills Dam · EIA plant 7246
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 102.6 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- June 1999First generator online
- Operator
- Arkansas Electric Coop CorpEIA operator ID 807
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- Desha County, AR33.9865, −91.3158
- EIA plant ID
- 7246EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Dam 2 produces
Free · EIA-923Net generation, 2025
385 GWh
385,060 MWh, final
Capacity factor, 2025
42.8%
2024: 44.5%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
211.6–448.4
GWh a year. Low 2017, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 261,321 | Not reported | 12 of 12 |
| 2001 | 321,045 | Not reported | 12 of 12 |
| 2002 | 379,029 | Not reported | 12 of 12 |
| 2003 | 410,411 | Not reported | 12 of 12 |
| 2004 | 349,748 | Not reported | 12 of 12 |
| 2005 | 392,057 | Not reported | 12 of 12 |
| 2006 | 211,927 | Not reported | 12 of 12 |
| 2007 | 406,779 | Not reported | 12 of 12 |
| 2008 | 381,670 | Not reported | 12 of 12 |
| 2009 | 445,263 | Not reported | 12 of 12 |
| 2010 | 431,239 | 48.0% | 12 of 12 |
| 2011 | 209,235 | 23.3% | 12 of 12 |
| 2012 | 273,562 | 30.4% | 12 of 12 |
| 2013 | 320,905 | 35.7% | 12 of 12 |
| 2014 | 390,250 | 43.4% | 12 of 12 |
| 2015 | 290,225 | 32.3% | 12 of 12 |
| 2016 | 378,865 | 42.0% | 12 of 12 |
| 2017 | 211,563 | 23.5% | 12 of 12 |
| 2018 | 289,523 | 32.2% | 12 of 12 |
| 2019 | 311,700 | 34.7% | 12 of 12 |
| 2020 | 353,007 | 39.2% | 12 of 12 |
| 2021 | 448,366 | 49.9% | 12 of 12 |
| 2022 | 366,684 | 40.8% | 12 of 12 |
| 2023 | 342,284 | 38.1% | 12 of 12 |
| 2024 | 400,749 | 44.5% | 12 of 12 |
| 2025 | 385,060 | 42.8% | 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 · MISOEmissions
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. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 34.2 | June 1999 |
| 2 | Conventional Hydroelectric | 34.2 | October 1999 |
| 3 | Conventional Hydroelectric | 34.2 | August 1999 |
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 Arkansas Electric Coop Corp as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Dam 2
More plants operated by Arkansas Electric Coop Corp
Questions about Dam 2
How much power does Dam 2 produce?
Dam 2 reported 385,060 MWh (385 GWh) of net generation in 2025, a 42.8% capacity factor on 102.6 MW of nameplate capacity.
Where is Dam 2?
Dam 2 is in Desha County, Arkansas, at 33.9865, −91.3158. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Dam 2?
EIA-860M for August 2026 lists Arkansas Electric Coop Corp as the operator (EIA operator ID 807). The operator is not always the owner.
When did Dam 2 start operating?
Its first generator began operating in June 1999, according to EIA-860M.
Does InfraMap have power prices for Dam 2?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Dam 2, 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)
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page