West Groton CHP — United States of America

Gas power plant in Massachusetts, United States of America. Approximate location 42.6134, -71.6338.

GasMassachusettsUnited States of America

West Groton CHP is a 4.1 MW gas power plant in Massachusetts, United States of America. It is operated by Hollingsworth & Vose Co West Groton. Based on reported annual generation of 22 GWh, it can supply roughly 6.3k homes. It ranks #7487 of 10,884 United States of America power plants by installed capacity. Commissioned in 2016, it is around 10 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).

4.1MW installed capacity
22GWh reported / yr
6,285homes powered
2016commissioned (~10 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0060276.

Data status

Known data

FacilityWest Groton CHP WRI
CountryUnited States of America · Massachusetts WRI
Coordinates42.6134, -71.6338 WRI
FuelGas WRI
MW installed capacity4.1 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
OwnerHollingsworth & Vose Co West Groton WRI
Commissioned2016 WRI
GWh reported / yr22 GWh·a⁻¹ WRI

Calculated from dataset

CO₂ emissions8,800 t CO₂·a⁻¹ calculated
Capacity rank in country#7487 / 10884 calculated
Fuel-specific rank in country#1965 / 2165 calculated
Capacity vs country/fuel peers0.03× · 121.2 MW · n=2165 calculated
Homes-powered equivalent6,285 calculated from reported generation
Climate8.7°C · HDD 3,567 derived from coordinates
Environmental severityC3 · 34/100 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 4.1 MW, West Groton CHP 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
61%, from 22 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
0 GWh in 2015 and 22 GWh in 2019 (+10900%)
Highest and lowest year
2018: 22 GWh; 2015: 0 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
1,652 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

2015: 0 GWh20152016: 19 GWh20162017: 20 GWh20172018: 22 GWh20182019: 22 GWh201922 GWh

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

Owner

Operated by Hollingsworth & Vose Co West Groton.

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 warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 42.6°N — which shapes how much energy it can produce and how its output varies through the year.

8.7°Cannual mean temp
3,567heating degree-days (base 18°C)
201cooling degree-days (base 18°C)
108 melevation

Monthly mean temperature

J: -5 °CJF: -4 °CFM: 1 °CMA: 7 °CAM: 13 °CMJ: 18 °CJJ: 21 °CJA: 21 °CAS: 16 °CSO: 10 °CON: 5 °CND: -1 °CD21 °C

Heating degree-days here run 45% above 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: 77/100 — this site sits in the top 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 thermal cycling the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
34/100environmental-severity index
26.1°Cseasonal temperature swing
82 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 #1965 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 42.6134, -71.6338 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is West Groton CHP?

West Groton CHP is a 4.1 MW gas power plant in Massachusetts, United States of America, commissioned in 2016.

How much electricity does West Groton CHP generate?

West Groton CHP generates about 22 GWh of electricity per year.

Who operates West Groton CHP?

West Groton CHP is operated by Hollingsworth & Vose Co West Groton.

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