Glenarm

43 East State Street, Pasadena, CA 91105

Plant Summary Information

Glenarm is ranked #63 out of 316 natural gas power plants in California in terms of total annual net electricity generation.

Glenarm is comprised of 6 generators and generated 37.8 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Glenarm
Utility Name	City of Pasadena - (CA)
Location	Los Angeles County, CA
Initial Operation Date	January 1976
Last Update	Dec 2025
Annual Generation	129.8 GWh
Annual Consumption	1.8 M MMBtu
Ranked #3,179 out of 13,081 Power Plants Nationwide
Ranked #846 out of 2,206 Natural Gas Power Plants Nationwide
Ranked #321 out of 1,606 California Power Plants
Ranked #63 out of 316 California Natural Gas Power Plants
Fuel Types	Natural Gas

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Monthly Net Generation for Glenarm

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Monthly Plant Fuel Consumption for Glenarm

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Glenarm Details

Summary Information
Plant Name	Glenarm (422)
Plant Address	43 East State Street, Pasadena, CA 91105
Utility	City of Pasadena - (CA) (14534)
Latitude, Longitude	34.126, -118.1494
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	January 1976
Annual Generation	129.8 GWh
Fuel Types	Natural Gas

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	California Independent System Operator (CISO)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Municipality
Ash Impoundment	No
Transmission / Distribution Owner	City of Pasadena - (CA) (14534) CA
Grid Voltage	34.00 kV
Energy Storage	No

Natural Gas Information
Local Distribution Company (LDC)	SOUTHERN CALIFORNIA GAS COMPANY
Natural Gas Storage	No

* Data obtained from the 2025 EIA 860 Report

Generator GT1 Details Operating January 1976

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	Unit 1
RTO ISO Location Designation For Reporting Wholesale Sales Data	Unit 1
Nameplate Capacity	28.8 MW
Nameplate Power Factor	0.85
Summer Capacity	22 MW
Winter Capacity	22 MW
Minimum Load	14.9 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	January 1976
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
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator GT2 Details Operating January 1976

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	Unit 2
RTO ISO Location Designation For Reporting Wholesale Sales Data	Unit 2
Nameplate Capacity	28.8 MW
Nameplate Power Factor	0.85
Summer Capacity	22 MW
Winter Capacity	22 MW
Minimum Load	15 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	January 1976
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
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator GT3 Details Operating January 2004

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	Unit 3
RTO ISO Location Designation For Reporting Wholesale Sales Data	Unit 3
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	47.2 MW
Winter Capacity	47.2 MW
Minimum Load	15.4 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	January 2004
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
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator GT4 Details Operating January 2004

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	Unit 4
RTO ISO Location Designation For Reporting Wholesale Sales Data	Unit 4
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	47.2 MW
Winter Capacity	47.2 MW
Minimum Load	15.4 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	January 2004
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
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator GT5 Details Operating December 2016

Technology	Natural Gas Fired Combined Cycle
Prime Mover	Combined Cycle Combustion Turbine Part
Unit Code	1
Ownership	Single Owner
Can Bypass Heat Recovery Steam Generator	Yes
RTO ISO LMP Node Designation	Unit 5
RTO ISO Location Designation For Reporting Wholesale Sales Data	Unit 5
Nameplate Capacity	71 MW
Nameplate Power Factor	0.85
Summer Capacity	68 MW
Winter Capacity	68 MW
Minimum Load	18 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	December 2016
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
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator ST1 Details Operating December 2016

Technology	Natural Gas Fired Combined Cycle
Prime Mover	Combined Cycle Steam Part
Unit Code	1
Ownership	Single Owner
Duct Burners	No
RTO ISO LMP Node Designation	Unit 5
RTO ISO Location Designation For Reporting Wholesale Sales Data	Unit 5
Nameplate Capacity	16 MW
Nameplate Power Factor	0.9
Summer Capacity	16 MW
Winter Capacity	16 MW
Minimum Load	6 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	December 2016
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	12H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Glenarm Plant Owners

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

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Natural Gas.

Rank	Plant Name	Plant Location	Annual Generation
#836	Calcasieu	Sulphur, LA	138.8 GWh
#837	Berry Cogen Tanne Hills 18	Maricopa, CA	138.7 GWh
#838	Narrows Gas Turbines Generating	Brooklyn, NY	144.9 GWh
#839	Almond Power Plant	Modesto, CA	137.4 GWh
#840	Kalamazoo River Generating Station	Comstock, MI	136.3 GWh
#841	Algonquin Windsor Locks	Windsor Locks, CT	146.9 GWh
#842	Empire Energy Center	Sarcoxie, MO	143.8 GWh
#843	Klamath Expansion Project	Klamath Falls, OR	132.3 GWh
#844	Pittsfield Generating LP	Pittsfield, MA	136.2 GWh
#845	Rand Whitney CHP Plant	Montville, CT	131.8 GWh
#847	Riverbay	New York, NY	130.1 GWh
#848	Glenwood Landing	Glenwood Landing, NY	137.0 GWh
#849	Domtar Kingsport Mill	Kingsport, TN	179.5 GWh
#850	Inver Hills	Inver Grove Heights, MN	129.5 GWh
#851	MPC Generating	Monroe, GA	127.5 GWh
#852	Brush Generation Facility	Brush, CO	126.3 GWh
#853	Basin Creek Plant	Butte, MT	126.2 GWh
#854	Boulder Park	Spokane, WA	125.8 GWh
#855	Purdue CHP	West Lafayette, IN	124.7 GWh
#856	Bayou Cove Peaking Power	Jennings, LA	124.6 GWh

Nearby Power Plants

Below are closest 20 power plants surrounding Glenarm.

Plant Name	Plant Location	Annual Generation	Distance
California Institute of Technology	Pasadena, CA	59.7 GWh	1.6 mi
CalTech - Pasadena (PPA)	Pasadena, CA	7.0 GWh	1.8 mi
CalTech - Pasadena Wilson Ave	Pasadena, CA	18.7 GWh	1.5 mi
Caltech Central	Pasadena, CA	7.7 GWh	1.5 mi
Forever 21 Retail, Inc.	Los Angeles, CA	1.1 GWh	4.6 mi
Grayson	Glendale, CA	8.6 GWh	7.6 mi
GreenStruxure BBU004, LLC	Montebello, CA	2.5 GWh	8.4 mi
H. Gonzales	Vernon, CA	29.4 MWh	9.7 mi
Irwindale Brew Yard, LLC	Irwindale, CA	517.0 MWh	12.1 mi
Kaiser - LA	Los Angeles, CA	36.9 GWh	8.6 mi
Lafayette 2 - Internal Services Dept	Los Angeles, CA	2.5 GWh	5.5 mi
Lake One	Burbank, CA	3.4 GWh	10.1 mi
Magnolia Power Project	Burbank, CA	1.2 TWh	10.2 mi
Malburg	Vernon, CA	291.4 GWh	9.7 mi
Metro Support Services Center Solar	Los Angeles, CA	25.0 MWh	6.6 mi
Occidental College Solar Project	Los Angeles, CA	1.6 GWh	3.3 mi
Puente Hills Energy Recovery	Whittier, CA	146.9 GWh	10.1 mi
Ratkovich Alhambra	Alhambra, CA	7.4 GWh	3.1 mi
Toyon Power Station	Los Angeles, CA	5.0 GWh	9 mi
USPS PV	Los Angeles, CA	10.9 GWh	12 mi