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Klamath Expansion Project

Gas power plant in Oregon, United States of America. Approximate location 42.1727, -121.8144.

GasOregonUnited States of America

Klamath Expansion Project is a 118 MW gas power station in Oregon, United States of America. It is operated by Klamath Energy LLC. Based on reported annual generation of 82 GWh, it can supply roughly 23k homes. It ranks #2609 of 10,938 United States of America power plants by installed capacity. Commissioned in 2002, it is around 24 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).

118Source-backed capacity
82GWh reported / yr
23,457homes powered
2002commissioned (~24 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0055544.

Data status

Known data

FacilityKlamath Expansion Project WRI
CountryUnited States of America · Oregon WRI
Coordinates42.1727, -121.8144 WRI
FuelGas WRI
MW installed capacity118 MW WRI source record; scope not independently normalised
OwnerKlamath Energy LLC WRI
Commissioned2002 WRI
GWh reported / yr82 GWh/yr WRI

Calculated from dataset

CO₂ emissions32,840 t CO₂/yr calculated
Capacity rank in country#2609 of 10938 calculated
Fuel-specific rank in country#1094 of 2165 calculated
Capacity vs country/fuel peers0.97× · 121 MW median · 2165 peers calculated
Homes-powered equivalent23,457 calculated from reported generation
Climate8.3°C · HDD 3,546 derived from coordinates
Environmental severityC2 · 26/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 502 MW for Klamath cogeneration plant, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: B_SCOPE_PARENT_COMPLEX - recommended action: build_parent_complex_model - confidence: not_comparable_without_scope. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000401679); fuel: WRI source-record fuel

In context: how this plant compares

At 118 MW, Klamath Expansion Project is around the median gas plant in United States of America (121 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.

Reported generation trend

2013: 47 GWh20132014: 35 GWh20142015: 31 GWh20152016: 49 GWh20162017: 66 GWh20172018: 42 GWh20182019: 82 GWh201982 GWh

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

Owner

Operated by Klamath Energy 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 warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 42.2°N — which shapes how much energy it can produce and how its output varies through the year.

8.3°Cannual mean temp
3,546heating degree-days (base 18°C)
28cooling degree-days (base 18°C)
1,261 melevation

Monthly mean temperature

J: -1 °CJF: 2 °CFM: 4 °CMA: 6 °CAM: 11 °CMJ: 15 °CJJ: 18 °CJA: 19 °CAS: 15 °CSO: 10 °CON: 3 °CND: -1 °CD19 °C

Heating degree-days here run 44% 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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
26/100environmental-severity index
19.6°Cseasonal temperature swing
202 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #1094 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 42.1727, -121.8144 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Klamath Expansion Project?

Klamath Expansion Project is a 118 MW source-record gas power plant in Oregon, United States of America, commissioned in 2002.

How much electricity does Klamath Expansion Project generate?

Klamath Expansion Project generates about 82 GWh of electricity per year.

How many homes can Klamath Expansion Project power?

Its output is enough to supply roughly 23,457 homes.

Who operates Klamath Expansion Project?

Klamath Expansion Project is operated by Klamath Energy LLC.

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