HKW III/B is a 274 MW gas power station in North Rhine-Westphalia, Germany. It is operated by Stadtwerke Duisburg AG. Based on reported annual generation of 995 GWh, it can supply roughly 284k homes. It ranks #139 of 1,442 Germany power plants by installed capacity. Commissioned in 2005, it is around 21 years old — relatively modern. In context, gas supplies about 16.5% of Germany's electricity; the national grid averages 330 gCO₂/kWh (59.1% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1005793.
Data status
Known data
Calculated from dataset
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: WRI GPPD; fuel: WRI GPPD
In context: how this plant compares
At 274 MW, HKW III/B is well above the median gas plant in Germany (52.9 MW). 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.
Key facts
- Load factor
- 41%, from 995 GWh of reported generation; the median for 20 gas plants in Germany that report generation is 18%
- Generation trend
- 223 GWh in 2015 and 995 GWh in 2017 (+345%)
- Highest and lowest year
- 2016: 1,038 GWh; 2015: 223 GWh
- Share of Germany gas capacity
- 0.7% of 37,245 MW across 241 plants in this dataset
- Age among peers
- 148 of 221 dated gas plants in Germany are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Reported generation trend
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Stadtwerke Duisburg AG.
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 51.4°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 9% 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: 54/100 — 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
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
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 #36 largest gas power plant of 241 in Germany by capacity.
Germany has 241 gas power plants in this dataset, together about 37,245 MW of capacity.
Nearby power plants
- DK Kraftwerk · Other · 22 MW · North Rhine-Westphalia
- Huckingen · Gas · 640 MW · North Rhine-Westphalia
- HKW I · Coal · 95 MW · North Rhine-Westphalia
- HKW Sachtleben · Coal · 27.5 MW · North Rhine-Westphalia
- Kraftwerk L 57 · Coal · 26 MW · North Rhine-Westphalia
- Kraftwerk N 230 · Coal · 110 MW · North Rhine-Westphalia
Location
Coordinates 51.3907, 6.7478 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is HKW III/B?
HKW III/B is a 274 MW gas power plant in North Rhine-Westphalia, Germany, commissioned in 2005.
How much electricity does HKW III/B generate?
HKW III/B generates about 995 GWh of electricity per year.
Who operates HKW III/B?
HKW III/B is operated by Stadtwerke Duisburg AG.