Whillock
Whillock is a 32 MW hydroelectric power plant in Conway County, Arkansas, operated by Arkansas Electric Coop Corp. EIA-860M lists 3 generating units here, inside MISO. Its units entered service in 1993.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 32.4 MW
- 17 MW net summer
- Generating units
- 3
- In service
- 1993
- EIA plant ID
- 7135
Where it is
Loading map…
- County
- Conway County, Arkansas
- Coordinates
- 35.1276, -92.7903
- Balancing authority
- MISO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Arkansas Electric Coop Corp
- Primary energy source
- Hydro
- Technologies
- Conventional Hydroelectric
- Status
- Operating
Whillock: FAQ
- Where is Whillock?
- In Conway County, Arkansas (AR). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Whillock?
- 32 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
- Who owns Whillock?
- EIA-860M names Arkansas Electric Coop Corp as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Whillock LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Arkansas Electric Coop Corp here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Whillock LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Whillock still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.