UK Electricity National Grid Demand and Output per Production Type

last update 2017-03-28 21:20:00 GMT

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UK Demand
33.09 GW
49.940 Hz
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Coal
1.638 GW
5%
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Nuclear
7.521 GW
22.7%
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Wind
2.949 GW
8.9%
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CCGT
14.676 GW
44.4%
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Hydro
0.984 GW :3%
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Pumped
0.207 GW :0.6%
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Oil
0 GW
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OCGT
0 GW
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Other
2.089 GW :6.3%
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IC France
1.994 GW
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IC Ned
1.002 GW
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IC Irl
-0.252 GW
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IC Ew
-0.248 GW
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minimum : 26.934 GW maximum : 40.862 GW average : 35.259 GW
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minimum : 25.652 GW maximum : 41.384 GW average : 33.929 GW
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minimum : 22.32 GW maximum : 47.806 GW average : 33.696 GW
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minimum : 24.58 GW maximum : 50.22 GW average : 36.614 GW

key:

UK demand : UK Demand - This is the total UK demand for electricity. This does not include unmetered sources such as Solar and Small Generation wind power.

Coal : Coal Power Stations - These stations burn coal to produce heat.This is used to heat water to produce steam which turns a steam turbine which drives a generator to produce electricity. There are currently 16 Coal power stations in the UK. The current Governments plan is to shutdown all coal stations by 2025.

Nuclear : Nuclear Power Stations - These stations use a Uranium nuclear reaction to produce heat. This is used to heat water to produce steam which turns a steam turbine which drives a generator to produce electricity. The output from these is more constant than other power generation. Fluctations usually indicate maintenance, refuelling or problems. There are currently 10 Nuclear power stations in the UK.

Wind : Wind Power - This is the power from Wind Farms and does not include unmetered wind turbines. The output from this fluctuates with the wind. There are currently over 6500 wind turbines in wind farms.

CCGT : Combined Cycle Gas Turbine - These use Natural Gas to power a Turbine which turns a Generator. A second system uses the heat to produce steam which is used to turn a turbine which powers a generator. There are 33 CCGT power stations in the UK.

Hydro : Hydroelectric - There are approximately 200 Hydroelectric stations in the UK. Most are situated in the Scottish and Welsh Mountain areas.

Oil : Oil Power Stations - These stations burn oil to produce heat. This is used to heat water to produce steam which turns a steam turbine which drives a generator to produce electricity. These are only used when demand is very high due to high running costs. There are currently 7 Oil powered stations in the UK.

Pumped : Pumped Storage Hydroelectric - Pumped storage incorporates two reservoirs. At times of low demand, generally at night, electricity is used to pump water from the lower to the upper basin. This water is then released to create power at a time when demand, and therefore price, is high. There are currently 4 pumped storage stations in the UK.

OCGT : Open Cycle Gas Turbine - These use Natural Gas to power a Turbine which powers a Generator. These are expensive to run so are only used when necessary. There is currently 1 of these in the UK.

Other : Other - This is mostly Biomass which includes the burning of Wood, Food Residues and straw. There are currently 17 biomass stations in the UK.

IC France : Interconnector to France - This is a link between between Folkestone (UK) and Sangatte (France). The 73 kilometres (45 mi) link is arranged as two fully independent 1,000 MW Bipoles, each operated at a DC voltage of ±270 kV. Cables are laid in pairs in four trenches so that the magnetic fields generated by the two conductors are largely cancelled. The landside parts of the link consist of 8 cables with lengths of 18.5 kilometres (11.5 mi) in England, and 6.35 kilometres (3.95 mi) in France.

IC Ned : Interconnector to Netherlands - This is a link between Kent(UK) and Rotterdam (Netherlands). The 260 kilometre (160 mi) long bi-pole ±450 kV link consists of two HVDC cables, which are bundled together. The capacity of the cable is 1000 MW. The interconnector has two converter stations for connecting the link with the British and Dutch high-voltage electricity transmission systems.

IC Irl : Moyle Interconnector - This is a link between South Ayrshire in Scotland and County Antrim in Northern Ireland. It consists of two monopolar ±250 kV DC cables with a transmission capacity of 250 MW each.

IC Ew : East West Interconnector - The link connects converter stations at Rush North Beach, County Dublin, Ireland, and Barkby Beach in North Wales. The 261 kilometres (162 mi) interconnection uses ±200 kV HVDC Light cables with a capacity of 500 MW.