CONSTITUENCY BRIEFING · ENERGYMAP.APP

Montgomeryshire and Glyndwr

MP: Steve Witherden (Labour) Wales Data to July 2026

Montgomeryshire and Glyndwr has 151 MW of clean power (almost all onshore wind) approved and still not built: enough to supply a year's electricity to 130,000 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, £4.0m across the constituency's 43,167 homes. There is also 168 MW of wind running here on the local network. If that gets switched off, no national record shows it.

Ranks 33 of 650 for clean power approved and not built.

What is stuck, and why

Project and developerTechSizeWhy it is stuck
Bronwylfa Road, Rhostyllen - Energy Storage SystemInnova Renewables Battery 400 MW Waiting 2.4 years for a planning decisionWho can move it: Wrexham Council · planning ref P/2024/0155
Esgair CwmowenPennant Walters Onshore wind 48 MW42,000 homes Waiting 16.2 years for a planning decisionWho can move it: Powys Council · planning ref P/2010/0890
Carno 3Amegni Renewables Onshore wind 45 MW39,000 homes Approved 9 years ago — nothing has happened sinceWho can move it: the developer and the network company · planning ref P/2010/0762
HirddywelVattenfall Onshore wind 27 MW24,000 homes Waiting 16.1 years for a planning decisionWho can move it: Powys Council · planning ref P/2010/0650
Buttington Quarry - ERFBroad Energy (Wales) Ltd EfW Incineration 13 MW Refused by the Welsh Government (it decides big energy projects) in 2022Who can move it: the Welsh Government (it decides big energy projects) · planning ref DNS/3214813

Plus 2 smaller projects — see the full seat page.

Compared with its neighbours

ConstituencyApproved, not builtRunningPaid to switch off
Montgomeryshire and Glyndwr 151 MW181 MWnot visible
Brecon, Radnor and Cwm Tawe 39 MW87 MWnot visible
Shrewsbury 25 MW37 MWnot visible
Wrexham 16 MW23 MWnot visible
South Shropshire 112 MW78 MWnot visible
North Shropshire 11 MW80 MWnot visible

Montgomeryshire and Glyndwr has more approved-and-waiting capacity than any of its neighbouring seats.

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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