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Welsh Government
Data Provider: Welsh Government Low Carbon Energy Generation by Local Authority
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Technology 1[Filter]
Area Code[Filter]
Year[Filtered]
Measure2
Measure[Filter]
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[Collapse]Local Authority 1
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Local Authority 2
Click here to sortNumber of ProjectsClick here to sortElectrical Capacity (MWe)Click here to sortHeat Capacity (MWth)Click here to sortElectrical Generation (MWhe)Click here to sortHeat Generation (MWhth)
[Collapse]Wales213,2967,2131,66715,650,1925,224,993
Wales[Collapse]North Wales60,1411,3135102,558,3281,846,979
North WalesIsle of Anglesey10,42617337300,24072,781
Gwynedd11,34623067379,811158,710
Conwy7,34720436395,85589,441
Denbighshire8,65833360797,695158,175
Flintshire11,166276228570,5091,113,727
Wrexham(r) The data item has been revised since previously published in StatsWales.11,198(r) The data item has been revised since previously published in StatsWales.99(r) The data item has been revised since previously published in StatsWales.83(r) The data item has been revised since previously published in StatsWales.114,218(r) The data item has been revised since previously published in StatsWales.254,144
[Collapse]Mid & South West Wales(r) The data item has been revised since previously published in StatsWales.84,106(r) The data item has been revised since previously published in StatsWales.2,775(r) The data item has been revised since previously published in StatsWales.849(r) The data item has been revised since previously published in StatsWales.5,540,901(r) The data item has been revised since previously published in StatsWales.2,432,185
Mid & South West WalesPowys(r) The data item has been revised since previously published in StatsWales.21,445(r) The data item has been revised since previously published in StatsWales.498(r) The data item has been revised since previously published in StatsWales.349(r) The data item has been revised since previously published in StatsWales.1,141,952(r) The data item has been revised since previously published in StatsWales.993,265
Ceredigion12,950369169747,861548,763
Pembrokeshire(r) The data item has been revised since previously published in StatsWales.16,576(r) The data item has been revised since previously published in StatsWales.467(r) The data item has been revised since previously published in StatsWales.96(r) The data item has been revised since previously published in StatsWales.519,726(r) The data item has been revised since previously published in StatsWales.238,986
Carmarthenshire18,207541138966,837362,747
Swansea(r) The data item has been revised since previously published in StatsWales.9,378(r) The data item has been revised since previously published in StatsWales.235(r) The data item has been revised since previously published in StatsWales.29(r) The data item has been revised since previously published in StatsWales.329,972(r) The data item has been revised since previously published in StatsWales.72,072
Neath Port Talbot5,550665671,834,553216,353
[Collapse]South East Wales(r) The data item has been revised since previously published in StatsWales.68,989(r) The data item has been revised since previously published in StatsWales.1,672(r) The data item has been revised since previously published in StatsWales.308(r) The data item has been revised since previously published in StatsWales.3,165,306(r) The data item has been revised since previously published in StatsWales.945,332
South East WalesBridgend6,34118721380,13155,157
Vale of Glamorgan(r) The data item has been revised since previously published in StatsWales.6,318(r) The data item has been revised since previously published in StatsWales.201(r) The data item has been revised since previously published in StatsWales.40(r) The data item has been revised since previously published in StatsWales.298,073(r) The data item has been revised since previously published in StatsWales.133,845
Cardiff9,8399729267,780105,575
Rhondda Cynon Taf(r) The data item has been revised since previously published in StatsWales.11,623(r) The data item has been revised since previously published in StatsWales.521(r) The data item has been revised since previously published in StatsWales.50(r) The data item has been revised since previously published in StatsWales.1,128,319(r) The data item has been revised since previously published in StatsWales.137,072
Merthyr Tydfil2,143361270,72741,618
Caerphilly7,77914422204,02260,458
Blaenau Gwent2,9624921102,51161,519
Torfaen(r) The data item has been revised since previously published in StatsWales.5,146(r) The data item has been revised since previously published in StatsWales.34(r) The data item has been revised since previously published in StatsWales.8(r) The data item has been revised since previously published in StatsWales.35,013(r) The data item has been revised since previously published in StatsWales.26,464
Monmouthshire11,21214377304,309245,105
Newport5,62625827374,42178,518
[Expand]Offshore(r) The data item has been revised since previously published in StatsWales.6(r) The data item has been revised since previously published in StatsWales.1,452(r) The data item has been revised since previously published in StatsWales.0(r) The data item has been revised since previously published in StatsWales.4,384,456(r) The data item has been revised since previously published in StatsWales.0
[Expand]UnknownExact location of project not disclosed, but within Wales(r) The data item has been revised since previously published in StatsWales.54(r) The data item has been revised since previously published in StatsWales.0(r) The data item has been revised since previously published in StatsWales.0(r) The data item has been revised since previously published in StatsWales.1,200(r) The data item has been revised since previously published in StatsWales.497

Metadata

Title

Energy Generation in Wales

Last update

August 2025 August 2025

Next update

Mawrth 2026 (Provisional)

Publishing organisation

Welsh Government

Source 1

Energy Generation in Wales, Welsh Government

Contact email

stats.environment@gov.wales

Designation

None

Lowest level of geographical disaggregation

Local authorities

Geographical coverage

Wales

Languages covered

English and Welsh

Data licensing

You may use and re-use this data free of charge in any format or medium, under the terms of the Open Government License - see http://www.nationalarchives.gov.uk/doc/open-government-licence

General description

A study of energy projects in Wales.

Data collection and calculation

The study combines data from existing administrative data sets (including Department for Business Energy and Industrial Strategy data and government scheme data), connections data from District Network Operators and contact with installers and industry organisations.

Frequency of publication

Annual

Data reference periods

2012 onwards

Revisions information

Some 2023 data was revised on 18/08/2025 following its initial publication on StatsWales due to a data processing error. These revisions have been marked with an (r) where applicable.

Keywords

Low carbon, renewable, energy, capacity, generation, electricity, heat.

Statistical quality

Through combining administrative datasets and contact information, the study aims to achieve complete coverage of energy generation in Wales.

For a small number of low carbon energy projects it is not possible to identify the local authority. In the case, the projects are included under an 'unknown' category, but are included within the Wales total.