CONSTITUENCY BRIEFING · ENERGYMAP.APP

Ynys Môn

MP: Llinos Medi (Plaid Cymru) Wales Data to July 2026

Ynys Môn has 95 MW of clean power (almost all solar) approved and still not built: enough to supply a year's electricity to 40,000 homes. When the wires are too full to carry the power, Britain pays wind farms to switch off instead. No wind farm here is paid that way — almost all of it goes to wind farms in Scotland. That cost is shared across every bill in Britain, so households here pay for it too: about £92 a year per household, £2.8m across the constituency's 30,822 homes. There is also 31 MW of wind running here on the local network. If that gets switched off, no national record shows it.

Ranks 72 of 650 for clean power approved and not built.

What is stuck, and why

Project and developerTechSizeWhy it is stuck
Penrhos Works - Battery Energy Storage SystemAnglesey Land Holdings Limited Battery
349 MW
Approved 3 years ago — nothing has happened sinceWho can move it: the developer and the network company
Carrog Ganol, Rhosgoch - Battery Energy Storage SystBoom Developments Limited Battery
300 MW
Approved a year ago — nothing has happened sinceWho can move it: the developer and the network company
Alaw Môn Solar Farm - Solar Farm & Energy Storage FaEnso Energy Limited Solar 58,000 homes
160 MW
Approved less than a year 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.