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Halmstad power station

Oil power plant in Halland, Sweden. Approximate location 56.6926, 12.9075.

OilHallandSwedenOCGT

Halmstad power station is a 278 MW oil power station in Halland, Sweden. It is operated by Uniper SE. Based on its capacity (estimated), it can supply roughly 209k homes (estimated). It ranks #21 of 178 Sweden power plants by installed capacity. Commissioned in 1972, it is around 54 years old — an older, legacy facility. In context, oil supplies about 1.2% of Sweden's electricity; the national grid averages 35 gCO₂/kWh (98.8% low-carbon) (2025).

278MW installed capacity
208,738homes powered (est.)
1972commissioned (~54 yrs)

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

Data status

Known data

FacilityHalmstad power station GEM-GOGPT
CountrySweden · Halland GEM-GOGPT
Coordinates56.6926, 12.9075 GEM-GOGPT
FuelOil GEM-GOGPT
MW installed capacity278 MW GEM GOGPT; source record
OwnerUniper SE GEM-GOGPT
Commissioned1972 GEM-GOGPT
TechnologyOCGT GEM-GOGPT

Calculated from dataset

CO₂ emissions547,938 t CO₂·a⁻¹ calculated
Capacity rank in country#21 / 178 calculated
Fuel-specific rank in country#2 / 6 calculated
Capacity vs country/fuel peers1.11× · 250 MW · n=6 calculated
Homes-powered equivalent208,738 calculated
Environmental severityC3 · 27/100 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 fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: GEM GOGPT; fuel: GEM GOGPT

In context: how this plant compares

At 278 MW, Halmstad power station is well above the median oil plant in Sweden (250 MW). Technically it is described as OCGT. Oil-fired plants burn heavy fuel oil or diesel, usually as peaking or backup capacity on islands and grids without gas pipelines; high fuel cost keeps their utilisation low.

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

Capacity vs largest oil plants in Sweden

Stenungsund: 840 MW840StenungsundHalmstad power station: 278 MW278Halmstad p…Aroskraft power station: 250 MW250Aroskraft …Stallbacka power station: 201 MW201Stallbacka…Kimstad power station: 134 MW134Kimstad po…Slite power station: 126 MW126Slite powe…

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

Owner

Operated by Uniper SE.

Climate zone & how it works

This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 56.7°N — which shapes how much energy it can produce and how its output varies through the year.

~11°Ctypical annual mean
~18°Ctypical warm-season mean
Temperate oceanic: 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)
27/100environmental-severity index
17.0°Cseasonal temperature swing
55 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 #2 largest oil power plant of 6 in Sweden by capacity.

Sweden has 6 oil power plants in this dataset, together about 1,829 MW of capacity.

Nearby power plants

Location

Coordinates 56.6926, 12.9075 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Halmstad power station?

Halmstad power station is a 278 MW oil power plant in Halland, Sweden, commissioned in 1972.

How many homes can Halmstad power station power?

Its output is enough to supply roughly 208,738 homes (estimated).

Who operates Halmstad power station?

Halmstad power station is operated by Uniper SE.

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