Hunter — United States of America

Coal power plant in Utah, United States of America. Approximate location 39.1747, -111.0289.

CoalUtahUnited States of AmericaCO₂ measured

Hunter is a 1,577.2 MW coal power station in Utah, United States of America. It is operated by PacifiCorp. Based on reported annual generation of 8,682 GWh, it can supply roughly 2.5 million homes. It ranks #302 of 10,884 United States of America power plants by installed capacity. Commissioned in 1980, it is around 46 years old — long-established. Its annual emissions of 4,495,601 t CO₂/yr (US EPA GHGRP) are equivalent to about 1.0 million cars driven for a year. In context, coal supplies about 16.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

1,577.2MW installed capacity
8,682GWh reported / yr
2,480,514homes powered
4,495,601t CO₂ / yr (US EPA GHGRP)
1980commissioned (~46 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0006165.

Data status

Known data

FacilityHunter WRI
CountryUnited States of America · Utah WRI
Coordinates39.1747, -111.0289 WRI
FuelCoal WRI
MW installed capacity1,577.2 MW GEM · 2026 · L100000104223; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerPacifiCorp WRI
Commissioned1980 WRI
GWh reported / yr8,682 GWh·a⁻¹ WRI
CO₂ emissions4,495,601 t CO₂·a⁻¹ measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#302 / 10884 calculated
Fuel-specific rank in country#125 / 802 calculated
Capacity vs country/fuel peers2.83× · 558 MW · n=802 calculated
Homes-powered equivalent2,480,514 calculated from reported generation
Climate9.5°C · HDD 3,457 derived from coordinates
Environmental severityC2 · 33/100 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: GEM · 2026 · L100000104223; fuel: WRI GPPD

In context: how this plant compares

At 1,577.2 MW, Hunter is well above the median coal plant in United States of America (558 MW). Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

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

4,495,601 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

25krailcars of coal burned
1.0 milliongasoline cars driven for a year
1.3kwind turbines running for a year
0.59%of the CO₂ from all United States of America power plants with an emissions figure in PowerAtlas

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).

Key facts

Load factor
63%, from 8,682 GWh of reported generation; the median for 244 coal plants in United States of America that report generation is 41%
Generation trend
9,546 GWh in 2013 and 8,682 GWh in 2019 (−9%)
Highest and lowest year
2015: 9,630 GWh; 2016: 8,161 GWh
Share of United States of America coal capacity
0.3% of 621,194 MW across 802 plants in this dataset
Age among peers
457 of 745 dated coal 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: 9,546 GWh20132014: 9,099 GWh20142015: 9,630 GWh20152016: 8,161 GWh20162017: 8,582 GWh20172018: 8,294 GWh20182019: 8,682 GWh201910k GWh

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

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 39.2°N — which shapes how much energy it can produce and how its output varies through the year.

9.5°Cannual mean temp
3,457heating degree-days (base 18°C)
357cooling degree-days (base 18°C)
1,720 melevation

Monthly mean temperature

J: -5 °CJF: -1 °CFM: 5 °CMA: 9 °CAM: 14 °CMJ: 20 °CJJ: 23 °CJA: 22 °CAS: 17 °CSO: 10 °CON: 2 °CND: -4 °CD23 °C

Heating degree-days here run 41% 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: 75/100 — 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
33/100environmental-severity index
28.7°Cseasonal temperature swing
892 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 #125 largest coal power plant of 802 in United States of America by capacity.

United States of America has 802 coal power plants in this dataset, together about 621,194 MW of capacity.

Nearby power plants

Location

Coordinates 39.1747, -111.0289 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Hunter?

Hunter is a 1,577.2 MW coal power plant in Utah, United States of America, commissioned in 1980.

How much electricity does Hunter generate?

Hunter generates about 8,682 GWh of electricity per year.

Who operates Hunter?

Hunter is operated by PacifiCorp.

How much CO₂ does Hunter emit?

Hunter has measured emissions of about 4,495,601 tonnes of CO₂ per year (US EPA GHGRP).

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