Whillock

Cherokee Park, Morrilton, AR 72110

Plant Summary Information

Whillock is ranked #44 out of 115 power plants in Arkansas in terms of total annual net electricity generation.

Whillock is comprised of 3 generators and generated 39.0 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Whillock
Utility Name	Arkansas Electric Coop Corp
Location	Conway County, AR
Initial Operation Date	October 1993
Last Update	Dec 2025
Annual Generation	130.9 GWh
Annual Consumption	483.4 k MMBtu
Ranked #3,168 out of 13,081 Power Plants Nationwide
Ranked #274 out of 1,311 Water Power Plants Nationwide
Ranked #44 out of 115 Arkansas Power Plants
Ranked #10 out of 18 Arkansas Water Power Plants
Fuel Types	Water

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Summary Information
Plant Name	Whillock (7135)
Plant Address	Cherokee Park, Morrilton, AR 72110
Utility	Arkansas Electric Coop Corp (807)
Latitude, Longitude	35.12759, -92.79027
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	October 1993
Annual Generation	130.9 GWh
Fuel Types	Water

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	No

Regulatory Information
Regulatory Status	Regulated
NERC Region	SERC
Balancing Authority	Midcontinent Independent Transmission System Operator, Inc.. (MISO)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Arkansas River
Ash Impoundment	No
Transmission / Distribution Owner	Entergy Arkansas Inc (814) AR
Grid Voltage	161.00 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	EAI.AECCHYDRO9
RTO ISO Location Designation For Reporting Wholesale Sales Data	EIA
Nameplate Capacity	10.8 MW
Nameplate Power Factor	0.95
Summer Capacity	6 MW
Winter Capacity	6 MW
Minimum Load	1 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	October 1993
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	EAI.AECCHYDRO9
RTO ISO Location Designation For Reporting Wholesale Sales Data	EIA
Nameplate Capacity	10.8 MW
Nameplate Power Factor	0.95
Summer Capacity	6 MW
Winter Capacity	6 MW
Minimum Load	1 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	October 1993
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	EAI.AECCHYDRO9
RTO ISO Location Designation For Reporting Wholesale Sales Data	EIA
Nameplate Capacity	10.8 MW
Nameplate Power Factor	0.95
Summer Capacity	5 MW
Winter Capacity	5 MW
Minimum Load	1 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	October 1993
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power plants with a similar annual net generation from Water.

Rank	Plant Name	Plant Location	Annual Generation
#264	Sherman Island	Queensbury, NY	139.2 GWh
#265	Hadley Falls	Holyoke, MA	137.3 GWh
#266	Wateree Hydro	Ridgeway, SC	137.3 GWh
#267	Gaston	Roanoke Rapids, NC	135.8 GWh
#268	Wilder	Hartford, VT	134.4 GWh
#269	Harris Dam	Lineville, AL	134.0 GWh
#270	Ellis Hydro	Van Buren, AR	133.9 GWh
#271	Faraday	Estacada, OR	133.1 GWh
#272	Nine Mile	Nine Mile, WA	132.2 GWh
#273	Great Falls (TN)	Rock Island, TN	131.1 GWh
#275	J S Eastwood	Shaver Lake, CA	130.6 GWh
#276	Santeetlah	Robbinsville, NC	130.0 GWh
#277	Castaic	Castaic, CA	129.1 GWh
#278	Cabin Creek	Georgetown, CO	128.4 GWh
#279	Hauser	Helena, MT	128.4 GWh
#280	San Francisquito 1	Saugus, CA	125.4 GWh
#281	Cowans Ford	Stanley, NC	124.9 GWh
#282	Columbus	Columbus, NE	124.6 GWh
#283	Estes	Estes Park, CO	123.4 GWh
#284	Watauga	Elizabethton, TN	121.6 GWh

Below are closest 20 power plants surrounding Whillock.

Plant Name	Plant Location	Annual Generation	Distance
Arkansas Nuclear One	Russellville, AR	14.1 TWh	28.1 mi
Blakely Mountain	Royal, AR	216.4 GWh	44.8 mi
Carpenter	Hot Springs, AR	147.2 GWh	49.2 mi
City of Clarksville	Clarksville, AR	663.0 MWh	47.1 mi
Dardanelle	Dardanelle, AR	517.3 GWh	23 mi
Greers Ferry Lake	Heber Springs, AR	163.4 GWh	52.4 mi
Harry L. Oswald	Little Rock, AR	929.3 GWh	49.3 mi
Hot Springs 2020	Hot Springs, AR	1.5 GWh	54 mi
Lake Catherine	Jones Mill, AR	336.2 GWh	48.4 mi
Magnet Cove	Malvern, AR	3.7 TWh	48.3 mi
Murray	North Little Rock, AR	116.4 GWh	33.6 mi
NLRED 2MW	North Little Rock, AR	4.5 GWh	43.6 mi
NLRED 5MW	North Little Rock, AR	11.3 GWh	43.6 mi
Petit Jean	Clinton, AR	2.2 GWh	35.7 mi
Remmel	Malvern, AR	46.1 GWh	48.7 mi
Scenic Hill Solar III	Clarksville, AR	9.7 GWh	47.1 mi
Scenic Hill Solar IV, LLC	Clarksville, AR	1.6 GWh	43.9 mi
Southside SD	Little Rock, AR	1.7 GWh	43.7 mi
Two Pine Landfill Gas Recovery	North Little Rock, AR	29.8 GWh	41.2 mi
Zeuber	Little Rock, AR	7.0 GWh	44.2 mi