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Imanta power station

Gas power plant in Riga, Latvia. Approximate location 56.96269, 24.03559.

GasRigaLatviaCCGT · HRSGCO₂ measured

Imanta power station is a 48 MW gas power plant in Riga, Latvia. It is operated by Rigas Siltums AS [100%]. Based on its capacity (estimated), it can supply roughly 54k homes (estimated). It ranks #7 of 7 Latvia power plants by installed capacity. Commissioned in 2006, it is around 20 years old — relatively modern. Its annual emissions of 45,888 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 11k cars driven for a year. In context, gas supplies about 26.2% of Latvia's electricity; the national grid averages 139 gCO₂/kWh (73.0% low-carbon) (2025).

48MW installed capacity
1HRSG unit(s)
54,061homes powered (est.)
45,888t CO₂ / yr (EU ETS verified (EUTL 2023))
2006commissioned (~20 yrs)

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

Data status

Known data

FacilityImanta power station GEM-GOGPT
CountryLatvia · Riga GEM-GOGPT
Coordinates56.96269, 24.03559 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity48 MW GEM · 2026 · L100000400480; operating plant capacity
OwnerRigas Siltums AS [100%] GEM-GOGPT
Commissioned2006 GEM-GOGPT
TechnologyCCGT · HRSG GEM-GOGPT
CO₂ emissions45,888 t CO₂·a⁻¹ measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#7 / 7 calculated
Fuel-specific rank in country#3 / 3 calculated
Homes-powered equivalent54,061 calculated
Environmental severityC3 · 32/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

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

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 · 2026 · L100000400480; fuel: GEM GOGPT

In context: how this plant compares

Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.

45,888 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

11kpassenger cars driven for a year
6.0khomes' yearly energy use
765ktree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per EU ETS verified (EUTL 2023) (measured for US EPA/EU ETS, modelled for Climate TRACE).

Capacity vs largest gas plants in Latvia

Riga Tec 2: 881 MW881Riga Tec 2RTEC1: 138 MW138RTEC1Imanta power station: 48 MW48Imanta pow…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Rigas Siltums AS [100%].

Climate zone & how it works

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 57.0°N — which shapes how much energy it can produce and how its output varies through the year.

~6°Ctypical annual mean
~19°Ctypical warm-season mean
Warm-summer humid continental: long cold winters and short, cool summers

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
32/100environmental-severity index
21.3°Cseasonal temperature swing
29 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 #3 largest gas power plant of 3 in Latvia by capacity.

Latvia has 3 gas power plants in this dataset, together about 1,067 MW of capacity.

Nearby power plants

Location

Coordinates 56.96269, 24.03559 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Imanta power station?

Imanta power station is a 48 MW gas power plant in Riga, Latvia, commissioned in 2006.

How many homes can Imanta power station power?

Its output is enough to supply roughly 54,061 homes (estimated).

Who operates Imanta power station?

Imanta power station is operated by Rigas Siltums AS [100%].

How much CO₂ does Imanta power station emit?

Imanta power station has measured emissions of about 45,888 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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