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 81,000 homes
92 MW
Approved a year ago — nothing has happened sinceWho can move it: the developer and the network company
Cwm Ivor Penyrheol Solar FarmCaerphilly County Borough Council Solar 7,300 homes
20 MW
Approved 2 years ago — nothing has happened sinceWho can move it: the developer and the network company

What else is in the briefing

No account needed for any of this: the full seat page with every figure, the method and sources, and this constituency's raw data. The account covers the packaged briefing only.