Power plant · Isle of Anglesey, Wales, United Kingdom
Penrhos Works - Battery Energy Storage System
Penrhos Works - Battery Energy Storage System is a permitted battery storage plant in Isle of Anglesey, Wales, United Kingdom, with 349 MW of capacity, operated by Anglesey Land Holdings Limited.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Isle of Anglesey (coordinates), Wales | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Address | Penrhos Works, Holyhead, LL65 2UX | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Status | Permitted (planning permission granted) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Permit date | 24 Jan 2024 (permit OP/2023/8, Town and Country Planning Act, issued by Isle of Anglesey) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Application date | 27 Nov 2023 (reference OP/2023/8, planning authority Isle of Anglesey) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 24 Jan 2024 (granted, reference OP/2023/8, planning authority Isle of Anglesey) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | Anglesey Land Holdings Limited (applicant) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 349 MW | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Battery (stand-alone storage) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Coordinates | 53.2956, -4.5947 | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
Research on this power plant and its operator.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the operator.
Request researchLatest events
Dated events about this power plant from official notices and registers, newest first. All recent changes.
- Permit granted (planning authority Isle of Anglesey, reference OP/2023/8)
- Permit applied for (planning authority Isle of Anglesey, reference OP/2023/8)
How it compares
Penrhos Works - Battery Energy Storage System is the 13th-largest of 157 power plants planned, permitted or under construction in Wales and the 198th-largest of 2,548 in the United Kingdom by capacity; its 349 MW is 0.13% of the 279,068 MW of power plants planned, permitted or under construction we hold for the United Kingdom. It is not built yet, so it is ranked among the power plants planned, permitted or under construction in our data, apart from the ones running today. Ranks and totals cover the ones that report their capacity.
| Within | Rank | Total | Share |
|---|---|---|---|
| Wales | 13th of 157 | 16,088 MW | 2.2% |
| United Kingdom | 198th of 2,548 | 279,068 MW | 0.13% |
| All power plants planned, permitted or under construction in our data | 458th of 5,799 | 657,076 MW | <0.1% |
Operator and place
Other power plants in Wales
- Pembroke2,325 MW
- Dinorwig1,728 MW
- Aberthaw B1,559 MW
- Connahs Quay1,380 MW
- Severn Power Ltd850 MW
- Gwynt y Mor576 MW
- Deeside498 MW
- Ffestiniog360 MW
Data on this page
- Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
- RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.
- Wikidata. Wikidata, CC0 1.0.