Carpenter

1398 Carpenter Dam Road, Hot Springs, AR 71901

Plant Summary Information

Carpenter is ranked #42 out of 115 power plants in Arkansas in terms of total annual net electricity generation.

Carpenter is comprised of 2 generators and generated 9.4 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Carpenter
Utility Name	Entergy Arkansas LLC
Location	Garland County, AR
Initial Operation Date	January 1932
Last Update	Dec 2025
Annual Generation	147.2 GWh
Annual Consumption	523.7 k MMBtu
Ranked #2,985 out of 13,081 Power Plants Nationwide
Ranked #254 out of 1,311 Water Power Plants Nationwide
Ranked #42 out of 115 Arkansas Power Plants
Ranked #8 out of 18 Arkansas Water Power Plants
Fuel Types	Water
Previous Operator	Entergy Arkansas Inc (2013 to 2017) Entergy Arkansas LLC (2018 to 2025)

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Summary Information
Plant Name	Carpenter (166)
Plant Address	1398 Carpenter Dam Road, Hot Springs, AR 71901
Utility	Entergy Arkansas LLC (814)
Latitude, Longitude	34.4425, -93.0262
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	January 1932
Annual Generation	147.2 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	Lake Hamilton
Ash Impoundment	No
Transmission / Distribution Owner	Entergy Arkansas Inc (814) AR
Grid Voltage	115.00 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.CARPEN1
RTO ISO Location Designation For Reporting Wholesale Sales Data	EAI.CARPEN1
Nameplate Capacity	28 MW
Nameplate Power Factor	0.9
Summer Capacity	30.1 MW
Winter Capacity	30.1 MW
Minimum Load	15 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	January 1932
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	EAI.CARPEN2
RTO ISO Location Designation For Reporting Wholesale Sales Data	EAI.CARPEN2
Nameplate Capacity	28 MW
Nameplate Power Factor	0.9
Summer Capacity	30.3 MW
Winter Capacity	30.3 MW
Minimum Load	15 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	January 1932
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Time From Cold Shutdown To Full Load	1H
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
#244	Saint Marys Falls	Sault Ste. Marie, MI	156.0 GWh
#245	Haas	Balch Camp, CA	154.8 GWh
#246	Colton	Pierrepont, NY	154.2 GWh
#247	Prairie Du Sac	Prairie du Sac, WI	152.9 GWh
#248	Big Creek 8	Auberry, CA	151.8 GWh
#249	Harris Hydro	West Forks, ME	150.9 GWh
#250	Bankhead Dam	Northport, AL	150.8 GWh
#251	Lemolo 2	Toketee Falls, OR	149.5 GWh
#252	Gauley River Power Partners	Summersville, WV	149.1 GWh
#253	Terror Lake Microgrid	Kodiak, AK	147.3 GWh
#255	School Street	Cohoes, NY	146.1 GWh
#256	Boone Dam	Kingsport, TN	145.5 GWh
#257	Butt Valley	Belden, CA	145.3 GWh
#258	Melton Hill	Lenoir City, TN	145.1 GWh
#259	Buford	Buford, GA	142.6 GWh
#260	Kern River 3	Kernville, CA	142.6 GWh
#261	Oak Grove	Estacada, OR	142.1 GWh
#262	Ocoee 3	Benton, TN	141.3 GWh
#263	Crystal	Montrose, CO	141.3 GWh
#264	Sherman Island	Queensbury, NY	139.2 GWh

Below are closest 20 power plants surrounding Carpenter.

Plant Name	Plant Location	Annual Generation	Distance
Blakely Mountain	Royal, AR	216.4 GWh	13.1 mi
Degray	Arkadelphia, AR	86.8 GWh	16.7 mi
Harry L. Oswald	Little Rock, AR	929.3 GWh	47.2 mi
Hot Spring Generating Facility	Malvern, AR	3.1 TWh	13.5 mi
Hot Springs 2020	Hot Springs, AR	1.5 GWh	9.7 mi
Lake Catherine	Jones Mill, AR	336.2 GWh	6.9 mi
Magnet Cove	Malvern, AR	3.7 TWh	11.1 mi
Murray	North Little Rock, AR	116.4 GWh	45.2 mi
Narrows (AR)	Murfreesboro, AR	3.0 GWh	44.3 mi
NLRED 2MW	North Little Rock, AR	4.5 GWh	52.3 mi
NLRED 5MW	North Little Rock, AR	11.3 GWh	52.4 mi
Redfield Solar	Sheridan, AR	36.3 GWh	46.8 mi
Remmel	Malvern, AR	46.1 GWh	7.6 mi
SAU Tech	Bearden, AR	2.0 GWh	49.4 mi
South Central Electric Cooperative	Arkadelphia, AR	2.2 GWh	19.6 mi
Southside SD	Little Rock, AR	1.7 GWh	51 mi
Veolia (Gum Springs)	Arkadelphia, AR	10.3 GWh	26.6 mi
Whillock	Morrilton, AR	130.9 GWh	49.2 mi
White Bluff	Redfield, AR	3.6 TWh	50.5 mi
Zeuber	Little Rock, AR	7.0 GWh	49.6 mi