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Deer Island Treatment Plant — United States of America

Oil power plant in Massachusetts, United States of America. Approximate location 42.3533, -70.9628.

OilMassachusettsUnited States of AmericaCO₂ modelled

Deer Island Treatment Plant is a 72.8 MW oil power plant in Massachusetts, United States of America. It is operated by Massachusetts Wtr Rauth-Deer I. Based on reported annual generation of 43 GWh, it can supply roughly 12k homes. It ranks #3210 of 10,884 United States of America power plants by installed capacity. Commissioned in 1996, it is around 30 years old — long-established. Its modelled annual emissions are 29,062 t CO₂/yr (Climate TRACE), equivalent to about 6.8k cars driven for a year. In context, oil supplies about 0.7% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

72.8MW installed capacity
43GWh reported / yr
12,400homes powered
29,062t CO₂ / yr (Climate TRACE)
1996commissioned (~30 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0010823.

Data status

Known data

FacilityDeer Island Treatment Plant WRI
CountryUnited States of America · Massachusetts WRI
Coordinates42.3533, -70.9628 WRI
FuelOil WRI
MW installed capacity72.8 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
OwnerMassachusetts Wtr Rauth-Deer I WRI
Commissioned1996 WRI
GWh reported / yr43 GWh·a⁻¹ WRI

Modelled source data

CO₂ emissions29,062 t CO₂·a⁻¹ modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#3210 / 10884 calculated
Fuel-specific rank in country#81 / 902 calculated
Capacity vs country/fuel peers10.11× · 7.2 MW · n=902 calculated
Homes-powered equivalent12,400 calculated from reported generation
Climate10.1°C · HDD 3,159 derived from coordinates
Environmental severityC4 · 40/100 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 72.8 MW, Deer Island Treatment Plant is well above the median oil plant in United States of America (7.2 MW). Oil-fired plants burn heavy fuel oil or diesel, usually as peaking or backup capacity on islands and grids without gas pipelines; high fuel cost keeps their utilisation low.

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

~29,062 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

68kbarrels of crude oil burned
3.9khomes' total energy use for a year
484ktree seedlings grown for 10 years

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Key facts

Load factor
7%, from 43 GWh of reported generation; the median for 469 oil plants in United States of America that report generation is 0%
Generation trend
24 GWh in 2013 and 43 GWh in 2019 (+80%)
Highest and lowest year
2018: 44 GWh; 2013: 24 GWh
Share of United States of America oil capacity
0.2% of 40,022 MW across 902 plants in this dataset
Age among peers
464 of 877 dated oil 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

2013: 24 GWh20132015: 28 GWh20152016: 40 GWh20162017: 43 GWh20172018: 44 GWh20182019: 43 GWh201944 GWh

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

Owner

Operated by Massachusetts Wtr Rauth-Deer I.

Local climate & thermal context

This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 42.4°N — which shapes how much energy it can produce and how its output varies through the year.

10.1°Cannual mean temp
3,159heating degree-days (base 18°C)
284cooling degree-days (base 18°C)
28 melevation

Monthly mean temperature

J: -2 °CJF: -1 °CFM: 3 °CMA: 8 °CAM: 14 °CMJ: 19 °CJJ: 22 °CJA: 22 °CAS: 17 °CSO: 11 °CON: 6 °CND: 1 °CD22 °C

Heating degree-days here run 29% 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: 67/100 — this site sits in the top third of the power plants we cover by heating degree-days.

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 corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
40/100environmental-severity index
24.8°Cseasonal temperature swing
38 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 #81 largest oil power plant of 902 in United States of America by capacity.

United States of America has 902 oil power plants in this dataset, together about 40,022 MW of capacity.

Nearby power plants

Location

Coordinates 42.3533, -70.9628 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Deer Island Treatment Plant?

Deer Island Treatment Plant is a 72.8 MW oil power plant in Massachusetts, United States of America, commissioned in 1996.

How much electricity does Deer Island Treatment Plant generate?

Deer Island Treatment Plant generates about 43 GWh of electricity per year.

Who operates Deer Island Treatment Plant?

Deer Island Treatment Plant is operated by Massachusetts Wtr Rauth-Deer I.

How much CO₂ does Deer Island Treatment Plant emit?

Deer Island Treatment Plant has modelled emissions of about 29,062 tonnes of CO₂ per year (Climate TRACE).

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