Mynydd Clogau

United Kingdom

Mynydd Clogau Wind Farm is situated on working farmland near the village of Adfa which is around 10 miles north of the market town of Newton and 14 miles east of Welshpool.

Installed Capacity


No. of turbines


Turbine type

Vestas V52

Hub height


Expected P50 energy yield


Annual house-hold power equivalent

12,537 homes*

The wind farm is set amongst delightful mid-Wales countryside which is popular with ramblers and mountain bikers.

The wind farm was originally built by RES/Novera Energy and opened in January 2006 after 10 months of construction. It was sold to Infinis in 2009 and became part of Ventient Energy in 2018. Its 17 turbines have an installed rating of 850kW, giving the site a capacity of 14.45MW with the ability to generate enough energy to power 12,537 homes*.

Benefiting local communities

There are two community trusts associated with Mynydd Clogau’s community funds: Tregynon Wind Farm Trust and Dwyriw Community Trust. These trusts have supported a number of different projects in nearby communities including providing direct support to local students to help with their study costs and supporting The Gregynog Festival (which is the oldest music festival in Wales). Other projects have included replacing seats at Tregynon Community Centre and supplying Smart TVs and installing a mobility lift at the Ysgol Rhiw-Bechan bi-lingual school in Tregynon.

Any questions relating to this wind farm should be directed to:

*Based on the Installed Capacity x Department for Energy Security and Net Zero (DESNZ) "all wind" load factor expressed as a fraction of 1^ x number of hours in a year (8,760 hours) / Average Annual Domestic Electricity Consumption (MWh)^^

^DESNZ's long-term average (5-years, 2018-2022) load factor for "all wind" (32.08%) expressed as a fraction of 1 (0.3208). Source for capacity factors is Digest of United Kingdom Energy Statistics (DUKES) published annually by DESNZ.

^^Annual GB Average Domestic Consumption Values from DESNZ (3,239kWh).

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