Marchwood power station

From Global Energy Monitor
Part of the Global Gas Plant Tracker, a Global Energy Monitor and Center for Media and Democracy project.

Marchwood power station is a 840-megawatt (MW) gas-fired power plant in Hampshire County, United Kingdom.


The map below shows the location of the power station in Southampton, Hampshire County, United Kingdom.

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In 2021 the project applied for 920 MW existing generation in the T-4 Capacity Market 2024-2025 auction, and they were listed in the final results.[1][2] This would qualify them for government subsidies to guarantee electricity supply.[3]

Project Details

  • Sponsor: Marchwood Power[4]
  • Parent company: SSE PLC (50%), Electricity Supply Board (ESB) (50%)[4]
  • Location: Southampton, Hampshire County, United Kingdom
  • Coordinates: 50.8980, -1.4375 (exact)[5]
  • Gross generating capacity (operating): 840 MW
    • Gas-fired[6] combined cycle[6], 840 MW[4] (start-up in 2009)[6]

Articles and Resources


  1. T4 DY2024-25 Final Results, Electricity Market Reform Delivery Body, Mar 22, 2021
  2. Capacity Market Register 2024-25 (T-4) - 13_04_2021, Electricity Market Reform Delivery Body, Apr 13, 2021
  3. Capacity Market, United Kingdom, Mar 1, 2019
  4. 4.0 4.1 4.2 Marchwood
  5. Open Power Plants Database, ID g_48W000000MRWD-1P European Commission Joint Research Centre, version 0.91
  6. 6.0 6.1 6.2 Digest of UK Energy Statistics (DUKES) United Kingdom Department for Business, Energy & Industrial Strategy