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Power plant · Gas, combustion turbine

Key facts

Power plant · Gas, combustion turbine Operating

Capacity: Capacity: sourceEIA-860M · Oct 30, 2026Open licenseMW

Commissioned: 1972
Net generation, 2025: 250,760 MWh
Grid: 115 kV to Baltimore Gas & Electric Co (PJM)
Location: Harford County, Maryland
Operated by: Constellation Power Source Generation, LLC

Net generation, 2025: 250,760MWh
Fuel burned, 2025: 2,830,233MMBtu
Capacity factor, 2025: 5.8%
Heat rate, 2025: 11,287Btu/kWh

Capacity factor % of full output, by year

Heat rate Btu per kWh, by year

Net generation, fuel burned, capacity factor and heat rate by year, newest first, as EIA's bulk electricity file states them.
Year	Net generation (MWh)	Fuel burned (MMBtu)	Capacity factor	Heat rate (Btu/kWh)
2026 (8 of 12 months)	292,675	3,424,908	—	11,702
2025	250,760	2,830,233	5.8%	11,287
2024	152,386	1,772,892	3.5%	11,634
2023	246,864	2,769,622	5.7%	11,219
2022	329,794	3,580,493	7.6%	10,857
2021	239,936	2,758,364	5.6%	11,496
2020 (11 of 12 months)	193,547	2,158,040	—	11,150
2019	203,102	2,094,100	4.7%	10,311
2018 (11 of 12 months)	270,954	2,936,661	—	10,838
2017	228,436	2,415,338	5.3%	10,573
2016	552,786	5,779,310	12.8%	10,455
2015	430,179	4,689,076	10.0%	10,900
2014	116,870	1,578,842	2.7%	13,509
2013	93,287	1,197,912	2.2%	12,841
2012	101,963	1,300,270	2.4%	12,752
2011	66,101	869,553	1.5%	13,155
2010	69,464	948,277	1.6%	13,651
2009	55,496	719,292	1.3%	12,961
2008	74,676	1,041,646	1.7%	13,949
2007	53,999	744,366	1.2%	13,785
2006	72,169	1,014,574	1.7%	14,058
2005	127,437	2,001,274	3.0%	15,704
2004	137,983	1,697,855	3.2%	12,305
2003 (11 of 12 months)	105,097	1,462,170	—	13,913
2002	181,420	2,324,614	4.2%	12,813
2001	301,949	3,644,188	7.0%	12,069

How these are worked out

Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.

Sources

3 sources

Sources EIA-860M · GEM · EIA

Sources

EIA-860MOpen license · retrieved Nov 4, 2026
GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)

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