Didcot GT — United Kingdom

Didcot GT is a 100 MW gas power station in England, United Kingdom. It is operated by RWE Npower Plc. Based on its capacity (estimated), it can supply roughly 113k homes (estimated). It ranks #166 of 2,860 United Kingdom power plants by installed capacity. In context, gas supplies about 31.1% of United Kingdom's electricity; the national grid averages 217 gCO₂/kWh (64.4% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GBR1000377.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 1,590 MW for Didcot power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

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 100 MW, Didcot GT is below the median gas plant in United Kingdom (115 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.

Key facts

Share of United Kingdom gas capacity

0.2% of 52,329 MW across 130 plants in this dataset

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest gas plants in United Kingdom

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

Owner

Operated by RWE Npower Plc. All plants by this company →

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 51.6°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 19% 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: 60/100 — 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 #67 largest gas power plant of 130 in United Kingdom by capacity.

United Kingdom has 130 gas power plants in this dataset, together about 52,329 MW of capacity.

Nearby power plants

• Didcot B · Gas · 1,440 MW · England
• Didcot power station · Coal · 2,172 MW · Oxfordshire
• Sutton Courtenay Landfill Scheme · Waste · 5.6 MW · England
• Sutton Courtney · Waste · 6 MW · England
• EFDA JJET Fusion Flywheel · Storage · 400 MW · England
• Hill Farm Solar Park (VoWH) · Solar · 14.8 MW · England

Location

Coordinates 51.6246, -1.2683 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions