Dwyfor Meirionnydd
Dwyfor Meirionnydd has 1.9 MW of clean power (all solar) approved and still not built: enough to supply a year's electricity to 700 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, £3.9m across the constituency's 42,488 homes. A 100 MW battery was refused planning here in 2026; while discharging it could have supplied about 350,000 homes.
Ranks 352 of 650 for clean power approved and not built.
What is stuck, and why
| Project and developer | Tech | Size | Why it is stuck |
|---|---|---|---|
| Tyddyn Forgan, Llanddeiniolen - Energy Storage SystemFirstway Energy / Net Zero Twenty Six Limited | Battery | 100 MW | Approved less than a year ago — nothing has happened sinceWho can move it: the developer and the network company · planning ref C25/0266/18/LL |
| Glyn Rhonwy (larger version)Snowdonia Pumped Hydro (Quarry Battery Company) | Pumped Storage Hydroelectricity | 100 MW | Approved 9 years ago — nothing has happened sinceWho can move it: the developer and the network company · planning ref EN010072 |
| Seion, Pentir - Battery Energy Storage SystemBrockwell Storage & Solar Limited | Battery | 100 MW | Refused by Gwynedd Council in 2026Who can move it: Gwynedd Council · planning ref C25/0277/18/LL |
| Gaerwen Wind FarmRWE Renewables UK Limited | Onshore wind | 59 MW52,000 homes | Waiting 12 months for a planning decisionWho can move it: the Welsh Government (it decides big energy projects) · earliest connection 2027 · planning ref DNS/3276735 |
| Pentir Substation, Pentir - Battery Energy StorageLightsource BP | Battery | 57 MW | Approved a year ago — nothing has happened sinceWho can move it: the developer and the network company · planning ref C24/0532/25/LL |
| Land off Lon Pin, Llanbedrog - Solar FarmLon Pin Solar Limited | Solar | 5 MW1,800 homes | Refused by Gwynedd Council in 2025Who can move it: Gwynedd Council · planning ref C23/0338/38/LL |
Plus 3 smaller projects — see the full seat page.
Compared with its neighbours
| Constituency | Approved, not built | Running | Paid to switch off |
|---|---|---|---|
| Dwyfor Meirionnydd | 1.9 MW | 49 MW | not visible |
| Montgomeryshire and Glyndwr | 151 MW | 181 MW | not visible |
| Clwyd East | 0 MW | 1.8 MW | not visible |
| Bangor Aberconwy | 18 MW | 214 MW | not visible |
Montgomeryshire and Glyndwr next door has 151 MW waiting, more than Dwyfor Meirionnydd's 1.9 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
Everything above needs no account, and neither does the full seat page, the method or this constituency's raw data. The account covers the packaged briefing and its PDF, and nothing else.