CONSTITUENCY BRIEFING · ENERGYMAP.APP

Caerphilly

MP: Chris Evans (Labour (Co-op)) Wales Data to July 2026

Caerphilly has 20 MW of clean power (all solar) approved and still not built: enough to supply a year's electricity to 7,300 homes. Britain's grid bottlenecks still add to bills here: about £92 a year per household, £3.8m across the constituency's 41,345 homes.

Ranks 199 of 650 for clean power approved and not built.

What is stuck, and why

Project and developerTechSizeWhy it is stuck
Twyn Hywel Wind FarmBute Energy Onshore wind 92 MW81,000 homes Approved a year ago — nothing has happened sinceWho can move it: the developer and the network company · planning ref DNS/3272053
Cwm Ivor Penyrheol Solar FarmCaerphilly County Borough Council Solar 20 MW7,300 homes Approved 2 years ago — nothing has happened sinceWho can move it: the developer and the network company · planning ref DNS/3266623

Compared with its neighbours

ConstituencyApproved, not builtRunningPaid to switch off
Caerphilly 20 MW32 MWnot visible
Cardiff North 0.7 MW0 MWnot visible
Pontypridd 41 MW42 MWnot visible
Newport West and Islwyn 0.3 MW22 MWnot visible
Merthyr Tydfil and Aberdare 10 MW31 MWnot visible
Blaenau Gwent and Rhymney 66 MW23 MWnot visible

Blaenau Gwent and Rhymney next door has 66 MW waiting, more than Caerphilly's 20 MW.

The rest of the briefing

  • Every approval each project still needs, and which of them the public can see
  • What building them would mean here — community payments, business rates and construction work
  • Drafted parliamentary questions and letters, filled in with this seat's figures
  • 3 story angles for local reporting
  • A two-page PDF, and a newsroom edition with the references and who to call
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