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Ames Electric Services Power Plant — United States of America

Gas power plant in Iowa, United States of America. Approximate location 42.0258, -93.6089.

GasIowaUnited States of AmericaSteamCO₂ measured

Ames Electric Services Power Plant is a 108.8 MW gas power station in Iowa, United States of America. It is operated by City of Ames - (IA). Based on reported annual generation of 129 GWh, it can supply roughly 37k homes. It ranks #2636 of 10,884 United States of America power plants by installed capacity. Commissioned in 1977, it is around 49 years old — long-established. Its annual emissions of 236,925 t CO₂/yr (US EPA GHGRP) are equivalent to about 55k cars driven for a year. 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).

108.8MW installed capacity
129GWh reported / yr
36,828homes powered
236,925t CO₂ / yr (US EPA GHGRP)
1977commissioned (~49 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0001122.

Data status

Known data

FacilityAmes Electric Services Power Plant WRI
CountryUnited States of America · Iowa WRI
Coordinates42.0258, -93.6089 WRI
FuelGas WRI
MW installed capacity108.8 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
OwnerCity of Ames - (IA) WRI
Commissioned1977 WRI
TechnologySteam WRI
GWh reported / yr129 GWh·a⁻¹ WRI
CO₂ emissions236,925 t CO₂·a⁻¹ measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#2636 / 10884 calculated
Fuel-specific rank in country#1115 / 2165 calculated
Capacity vs country/fuel peers0.90× · 121.2 MW · n=2165 calculated
Homes-powered equivalent36,828 calculated from reported generation
Climate9.1°C · HDD 3,615 derived from coordinates
Environmental severityC2 · 34/100 derived from coordinates

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 108.8 MW, Ames Electric Services Power Plant is below the median gas plant in United States of America (121.2 MW). Technically it is described as Steam. 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.

236,925 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

4.3kmillion cubic feet of natural gas burned
49khomes' electricity use for a year
237kacres of US forest absorbing CO₂ for a year
0.03%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
14%, from 129 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
291 GWh in 2013 and 129 GWh in 2019 (−56%)
Highest and lowest year
2013: 291 GWh; 2019: 129 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
284 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

2013: 291 GWh20132014: 283 GWh20142015: 251 GWh20152016: 281 GWh20162017: 0 GWh20172018: 0 GWh20182019: 129 GWh2019291 GWh

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

Owner

Operated by City of Ames - (IA).

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 hot-summer humid continental climate (Köppen Dfa) — Northern Hemisphere, latitude 42.0°N — which shapes how much energy it can produce and how its output varies through the year.

9.1°Cannual mean temp
3,615heating degree-days (base 18°C)
392cooling degree-days (base 18°C)
291 melevation

Monthly mean temperature

J: -8 °CJF: -4 °CFM: 2 °CMA: 10 °CAM: 16 °CMJ: 21 °CJJ: 23 °CJA: 22 °CAS: 18 °CSO: 11 °CON: 2 °CND: -5 °CD23 °C

Heating degree-days here run 47% 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: 78/100 — 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
34/100environmental-severity index
31.2°Cseasonal temperature swing
608 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 #1115 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 42.0258, -93.6089 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Ames Electric Services Power Plant?

Ames Electric Services Power Plant is a 108.8 MW gas power plant in Iowa, United States of America, commissioned in 1977.

How much electricity does Ames Electric Services Power Plant generate?

Ames Electric Services Power Plant generates about 129 GWh of electricity per year.

Who operates Ames Electric Services Power Plant?

Ames Electric Services Power Plant is operated by City of Ames - (IA).

How much CO₂ does Ames Electric Services Power Plant emit?

Ames Electric Services Power Plant has measured emissions of about 236,925 tonnes of CO₂ per year (US EPA GHGRP).

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