Home / North America / United States of America / APG Combined Heat and Power Plant

APG Combined Heat and Power Plant — United States of America

Gas power plant in Maryland, United States of America. Approximate location 39.3975, -76.2991.

GasMarylandUnited States of America

APG Combined Heat and Power Plant is a 7.9 MW gas power plant in Maryland, United States of America. It is operated by US Dept of Army Garrison APG. Based on reported annual generation of 55 GWh, it can supply roughly 16k homes. It ranks #6037 of 10,884 United States of America power plants by installed capacity. Commissioned in 2017, it is around 9 years old — relatively modern. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

7.9MW installed capacity
55GWh reported / yr
15,800homes powered
2017commissioned (~9 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0061282.

Data status

Known data

FacilityAPG Combined Heat and Power Plant WRI
CountryUnited States of America · Maryland WRI
Coordinates39.3975, -76.2991 WRI
FuelGas WRI
MW installed capacity7.9 MW Wikidata P2109; installed/nameplate capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerUS Dept of Army Garrison APG WRI
Commissioned2017 WRI
GWh reported / yr55 GWh·a⁻¹ WRI

Calculated from dataset

CO₂ emissions22,120 t CO₂·a⁻¹ calculated
Capacity rank in country#6037 / 10884 calculated
Fuel-specific rank in country#1821 / 2165 calculated
Capacity vs country/fuel peers0.07× · 121.2 MW · n=2165 calculated
Homes-powered equivalent15,800 calculated from reported generation
Climate12.9°C · HDD 2,432 derived from coordinates
Environmental severityC3 · 39/100 derived from coordinates

Not available

TechnologyNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

Source of the capacity and fuel values:

capacity: Wikidata P2109; fuel: WRI GPPD

In context: how this plant compares

At 7.9 MW, APG Combined Heat and Power Plant is below the median gas plant in United States of America (121.2 MW). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Load factor
80%, from 55 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
16 GWh in 2016 and 55 GWh in 2019 (+243%)
Highest and lowest year
2019: 55 GWh; 2016: 16 GWh
Share of United States of America gas capacity
less than 0.1% of 789,950 MW across 2,165 plants in this dataset
Age among peers
1,681 of 1,973 dated gas plants in United States of America are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Reported generation trend

2016: 16 GWh20162017: 50 GWh20172018: 0 GWh20182019: 55 GWh201955 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by US Dept of Army Garrison APG.

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 39.4°N — which shapes how much energy it can produce and how its output varies through the year.

12.9°Cannual mean temp
2,432heating degree-days (base 18°C)
576cooling degree-days (base 18°C)
11 melevation

Monthly mean temperature

J: 1 °CJF: 2 °CFM: 6 °CMA: 12 °CAM: 17 °CMJ: 22 °CJJ: 25 °CJA: 24 °CAS: 20 °CSO: 14 °CON: 8 °CND: 4 °CD25 °C

Heating degree-days here run 1% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 50/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
39/100environmental-severity index
24.1°Cseasonal temperature swing
115 kmdistance to coast

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #1821 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 39.3975, -76.2991 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is APG Combined Heat and Power Plant?

APG Combined Heat and Power Plant is a 7.9 MW gas power plant in Maryland, United States of America, commissioned in 2017.

How much electricity does APG Combined Heat and Power Plant generate?

APG Combined Heat and Power Plant generates about 55 GWh of electricity per year.

Who operates APG Combined Heat and Power Plant?

APG Combined Heat and Power Plant is operated by US Dept of Army Garrison APG.

Built from open public data; no personal information. Operate this site? Request a correction or removal.