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HERDERSBRUG STEG

Gas power plant in Flanders, Belgium. Approximate location 51.2629, 3.2112.

GasFlandersBelgiumCCGT · HRSGSiemens Energy: V94.2CO₂ measured

HERDERSBRUG STEG is a 465 MW gas power station in Flanders, Belgium. It is operated by Electrabel NV/SA [100%]. Based on reported annual generation of 1,083 GWh, it can supply roughly 309k homes. It ranks #12 of 95 Belgium power plants by installed capacity. Commissioned in 1998, it is around 28 years old — long-established. Its annual emissions of 201,493 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 47k cars driven for a year. In context, gas supplies about 21.5% of Belgium's electricity; the national grid averages 150 gCO₂/kWh (72.0% low-carbon) (2025).

465Source-backed capacity
1HRSG unit(s)
1,083GWh reported / yr
309,457homes powered
201,493t CO₂ / yr (EU ETS verified (EUTL 2023))
1998commissioned (~28 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1002234.

Data status

Known data

FacilityHERDERSBRUG STEG WRI
CountryBelgium · Flanders WRI
Coordinates51.2629, 3.2112 WRI
FuelGas WRI
MW installed capacity465 MW WRI source record; scope not independently normalised
OwnerElectrabel NV/SA [100%] WRI
Commissioned1998 WRI
TechnologyCCGT · Siemens Energy: V94.2 · HRSG WRI
GWh reported / yr1,083 GWh/yr WRI
CO₂ emissions201,493 t CO₂/yr measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#12 of 95 calculated
Fuel-specific rank in country#5 of 35 calculated
Capacity vs country/fuel peers3.63× · 128 MW median · 35 peers calculated
Homes-powered equivalent309,457 calculated from reported generation
Climate10.3°C · HDD 2,796 derived from coordinates
Environmental severityC4 · 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 tracker 2026 (location L100000400027); fuel: WRI source-record fuel

In context: how this plant compares

At 465 MW, HERDERSBRUG STEG is well above the median gas plant in Belgium (128 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); Siemens Energy: V94.2. 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.

201,493 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

47kpassenger cars driven for a year
26khomes' yearly energy use
3.4 milliontree 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).

Reported generation trend

2015: 929 GWh20152016: 1,313 GWh20162017: 1,083 GWh20171k GWh

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

Owner

Operated by Electrabel NV/SA [100%].

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 temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 51.3°N — which shapes how much energy it can produce and how its output varies through the year.

10.3°Cannual mean temp
2,796heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
3 melevation

Monthly mean temperature

J: 4 °CJF: 4 °CFM: 6 °CMA: 9 °CAM: 12 °CMJ: 15 °CJJ: 17 °CJA: 18 °CAS: 15 °CSO: 11 °CON: 7 °CND: 5 °CD18 °C

Heating degree-days here run 14% 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: 57/100 — this site sits in the mid 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 corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
32/100environmental-severity index
13.8°Cseasonal temperature swing
45 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 #5 largest gas power plant of 35 in Belgium by capacity.

Belgium has 35 gas power plants in this dataset, together about 8,938 MW of capacity.

Nearby power plants

Location

Coordinates 51.2629, 3.2112 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is HERDERSBRUG STEG?

HERDERSBRUG STEG is a 465 MW source-record gas power plant in Flanders, Belgium, commissioned in 1998.

How much electricity does HERDERSBRUG STEG generate?

HERDERSBRUG STEG generates about 1,083 GWh of electricity per year.

How many homes can HERDERSBRUG STEG power?

Its output is enough to supply roughly 309,457 homes.

Who operates HERDERSBRUG STEG?

HERDERSBRUG STEG is operated by Electrabel NV/SA [100%].

How much CO₂ does HERDERSBRUG STEG emit?

HERDERSBRUG STEG has measured emissions of about 201,493 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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