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Tesoro Kenai Cogeneration Plant — United States of America

Gas power plant in Alaska, United States of America. Approximate location 60.677, -151.3815.

GasAlaskaUnited States of America

Tesoro Kenai Cogeneration Plant is a 8.6 MW gas power plant in Alaska, United States of America. It is operated by Tesoro Alaska Company LLC. Based on reported annual generation of 68 GWh, it can supply roughly 19k homes. It ranks #5911 of 10,884 United States of America power plants by installed capacity. Commissioned in 1988, it is around 38 years old — long-established. 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).

8.6MW installed capacity
68GWh reported / yr
19,485homes powered
1988commissioned (~38 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0052184.

Data status

Known data

FacilityTesoro Kenai Cogeneration Plant WRI
CountryUnited States of America · Alaska WRI
Coordinates60.677, -151.3815 WRI
FuelGas WRI
MW installed capacity8.6 MW GEM · 2026 · L100000402528; part of a generating complex
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerTesoro Alaska Company LLC WRI
Commissioned1988 WRI
GWh reported / yr68 GWh·a⁻¹ WRI

Calculated from dataset

CO₂ emissions27,280 t CO₂·a⁻¹ calculated
Capacity rank in country#5911 / 10884 calculated
Fuel-specific rank in country#1807 / 2165 calculated
Capacity vs country/fuel peers0.07× · 121.2 MW · n=2165 calculated
Homes-powered equivalent19,485 calculated from reported generation
Climate1.8°C · HDD 5,884 derived from coordinates
Environmental severityC2 · 25/100 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 · L100000402528; fuel: WRI GPPD

In context: how this plant compares

At 8.6 MW, Tesoro Kenai Cogeneration 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
91%, from 68 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
60 GWh in 2013 and 68 GWh in 2019 (+13%)
Highest and lowest year
2015: 70 GWh; 2013: 60 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
465 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: 60 GWh20132014: 0 GWh20142015: 70 GWh20152016: 0 GWh20162017: 0 GWh20172018: 65 GWh20182019: 68 GWh201970 GWh

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

Owner

Operated by Tesoro Alaska Company LLC.

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 Mediterranean subarctic climate (Köppen Dsc) — Northern Hemisphere, latitude 60.7°N — which shapes how much energy it can produce and how its output varies through the year.

1.8°Cannual mean temp
5,884heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
29 melevation

Monthly mean temperature

J: -10 °CJF: -8 °CFM: -4 °CMA: 2 °CAM: 7 °CMJ: 11 °CJJ: 14 °CJA: 13 °CAS: 9 °CSO: 2 °CON: -5 °CND: -9 °CD14 °C

Heating degree-days here run 139% 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: 98/100 — 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)
25/100environmental-severity index
23.7°Cseasonal temperature swing
67 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 #1807 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 60.677, -151.3815 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Tesoro Kenai Cogeneration Plant?

Tesoro Kenai Cogeneration Plant is a 8.6 MW gas power plant in Alaska, United States of America, commissioned in 1988.

How much electricity does Tesoro Kenai Cogeneration Plant generate?

Tesoro Kenai Cogeneration Plant generates about 68 GWh of electricity per year.

Who operates Tesoro Kenai Cogeneration Plant?

Tesoro Kenai Cogeneration Plant is operated by Tesoro Alaska Company LLC.

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