Neil Simpson II

13151 Highway 51, Gillette, WY 82718

Plant Summary Information

Neil Simpson II is ranked #13 out of 73 power plants in Wyoming in terms of total annual net electricity generation.

Neil Simpson II is comprised of 2 generators and generated 186.9 GWh during the 3-month period between September 2023 to December 2023.

Plant Name	Neil Simpson II
Utility Name	Black Hills Power, Inc.
Location	Campbell County, WY
Initial Operation Date	September 1995
Last Update	Dec 2023
Annual Generation	685.7 GWh
Annual Consumption	9.3 M MMBtu
Ranked #1,008 out of 11,993 Power Plants Nationwide
Ranked #93 out of 132 Subbituminous Coal Power Plants Nationwide
Ranked #13 out of 73 Wyoming Power Plants
Ranked #9 out of 11 Wyoming Subbituminous Coal Power Plants
Fuel Types	Subbituminous Coal : 89.1% Natural Gas : 10.9%
Previous Operators	Black Hills Power Inc (2013 to 2014) Black Hills Power, Inc. d/b/a (2015 to 2020) Black Hills Power, Inc. (2021 to 2023)

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Summary Information
Plant Name	Neil Simpson II (7504)
Plant Address	13151 Highway 51, Gillette, WY 82718
Utility	Black Hills Power, Inc. (19545)
Latitude, Longitude	44.2856, -105.3833
Generation Dates on File	Jan 2001 to Dec 2023
Initial Operation Date	September 1995
Annual Generation	685.7 GWh
Fuel Types	Subbituminous Coal : 89.1% Natural Gas : 10.9%

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	WECC
Balancing Authority	Western Area Power Administration - Rocky Mountain Region (WACM)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Wells
Ash Impoundment	No
Transmission / Distribution Owner	Black Hills Power Inc (19545) WY
Grid Voltage	69.00 kV
Energy Storage	No

Natural Gas Information
Pipeline Name	Other - Please explain in pipeline notes below.
Pipeline Notes	Neil Simpson Steam 2 start up gas & Neil Simpson GT1 natural gas is supplied by pipeline owned by Black Hills Power and is operated by Black Hills Service Co.
Natural Gas Storage	No

* Data obtained from the 2023 EIA 860 Report

Sector Name	Electric Utility (1)
Energy Source	Subbituminous Coal
Startup Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	OVER
Pulverized Coal Technology	Yes
Subcritical Technology	Yes
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	40 MW
Nameplate Power Factor	0.9
Summer Capacity	34 MW
Winter Capacity	37 MW
Minimum Load	24.7 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	June 2000

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

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

Power plants with a similar annual net generation from Subbituminous Coal.

Rank	Plant Name	Plant Location	Annual Generation
#83	Intermountain Power Project	Delta, UT	6.7 TWh
#84	George Neal South	Salix, IA	736.2 GWh
#85	GREC	Chouteau, OK	3.5 TWh
#86	Archer Daniels Midland Clinton	Clinton, IA	786.2 GWh
#87	Sheldon	Hallam, NE	683.8 GWh
#88	Wygen 2	Gillette, WY	663.4 GWh
#89	Michigan City	Michigan City, IN	836.4 GWh
#90	Muskogee	Fort Gibson, OK	3.0 TWh
#91	Muscatine Plant #1	Muscatine, IA	635.8 GWh
#92	Lansing	Lansing, IA	631.5 GWh
#94	Allen S King	Oak Park Heights, MN	589.0 GWh
#95	North Valmy	Valmy, NV	1.2 TWh
#96	Rush Island	Festus, MO	603.1 GWh
#97	Archer Daniels Midland Cedar Rapids	Cedar Rapids, IA	1.0 TWh
#98	Wygen 1	Gillette, WY	557.4 GWh
#99	Lawrence Energy Center	Lawrence, KS	925.9 GWh
#100	River Valley	Panama, OK	618.4 GWh
#101	Trenton Channel	Trenton, MI	574.8 GWh
#102	Lon Wright	Fremont, NE	521.6 GWh
#103	Hardin Generator Project	Hardin, MT	435.4 GWh

Below are closest 20 power plants surrounding Neil Simpson II.

Plant Name	Plant Location	Annual Generation	Distance
Anticline Wind	Casper, WY	83.0 GWh	92.3 mi
Arvada	Arvada, WY	216.0 MWh	45.4 mi
Barber Creek	Gillette, WY	359.0 MWh	43.4 mi
Campbell Hill Windpower	Glenrock, WY	282.0 GWh	93.1 mi
Cedar Springs I	Douglas, WY	730.1 GWh	87.6 mi
Cedar Springs II	Douglas, WY	617.5 GWh	91 mi
Cedar Springs III	Douglas, WY	509.6 GWh	84.1 mi
Cedar Springs Wind IV	Douglas, WY	72.5 GWh	83.5 mi
Dave Johnston	Glen Rock, WY	4.1 TWh	102 mi
Dry Fork Station	Gillette, WY	2.5 TWh	8.1 mi
Glenrock	Glenrock, WY	314.1 GWh	90.4 mi
Hartzog	Wright, WY	318.0 MWh	32.4 mi
Neil Simpson Gas Turbine #2	Gillette, WY	19.4 GWh	0.2 mi
Rolling Hills	Glenrock, WY	187.8 GWh	88.1 mi
Spearfish Hydro	Spearfish, SD	21.4 GWh	76.6 mi
Top of the World Windpower Project	Glenrock, WY	407.0 GWh	96.1 mi
Wygen 1	Gillette, WY	557.4 GWh	0 mi
Wygen 2	Gillette, WY	663.4 GWh	0.4 mi
Wygen III	Gillette, WY	794.7 GWh	0.5 mi
Wyodak	Gillette, WY	1.9 TWh	0.3 mi