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Output over the last 7 days
About Thornhill
Thornhill is an open-cycle gas turbine (OCGT) station at Thornhill, near Dewsbury, in West Yorkshire. It was commissioned in 1997. It starts quickly to cover peaks in demand.
Elexon registers its one balancing mechanism unit at 50 MW, but Rockland Capital gives it 40 MW, and that is the capacity this page uses. Every half hour each unit tells the grid how much it will generate (its physical notification): that is the live figure above, and GridMonkey has recorded it every half hour since it was added to the list in October 2026, for the chart.
Gas stations follow demand: they ramp up when the wind drops or the evening peak arrives, and back off when there is plenty of wind and sun. Most are combined-cycle (CCGT); a few open-cycle turbines (OCGT) start fast to cover peaks.
| Type | Open-cycle gas turbine (OCGT) station |
|---|---|
| Capacity | 40 MW (Rockland Capital) |
| Registered capacity | 50 MW (Elexon) |
| Commissioned | 1997 (DUKES 5.11) |
| Area | West Yorkshire |
| Location | At Thornhill, near Dewsbury, in West Yorkshire 53.678° N, 1.654° W |
| Owner or operator | Rockland Capital |
| Elexon lead party | Whitetower Energy Limited |
| BM unit | E_THRNL-1 50 MW |
| Size | 45th largest of the 45 gas power stations on GridMonkey's list |
Other gas power stations
- Pembroke 2,375 MW, Pembrokeshire
- Staythorpe 1,856 MW, Nottinghamshire
- Didcot B 1,490 MW, Oxfordshire
- West Burton B 1,410 MW, Nottinghamshire
- Connah's Quay 1,409 MW, Flintshire
- Grain 1,326 MW, Kent
- Immingham CHP 1,283 MW, Lincolnshire
- Seabank 1,236 MW, Bristol
- Saltend 1,226 MW, East Riding of Yorkshire
- Peterhead 1,200 MW, Aberdeenshire
- Spalding 950 MW, Lincolnshire
- Carrington 940 MW, Greater Manchester
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Contains BMRS data © Elexon Limited copyright and database right 2026 (licence). Station names, areas and owners or operators come from GridMonkey's own table, matched to the units in Elexon's register; a station's output here is its physical notification, not metered generation. Year commissioned and location: Power stations in the United Kingdom (DUKES 5.11) (Department for Energy Security and Net Zero, May 2026). Contains public sector information licensed under the Open Government Licence v3.0.