Pen y Cymoedd

The highest altitude wind farm in the UK

Pen y Cymoedd is our flagship onshore wind farm, located in South Wales. Its 76 turbines can produce enough electricity to power 15% of Welsh homes annually. In addition to the production of fossil free electricity, a 22MW battery is co-located at the wind farm.

The battery is able to respond to the needs of the grid system in less than a second  - supporting a stable supply of electricity to UK homes.

Electric vehicle charging stations are also installed at the wind farm, as we get ready to take our entire fleet of vehicles electric in the next four years.

Aerial photo of a wind farm with several wind turbines located in a lush green landscape.

Pen y Cymoedd Wind Energy Project

Key facts

No of Turbines 76
Electricity capacity 228 MW
Number of homes per annum 188,000
Battery@PyC 22 MW
Investment in Wales during construction £220 million
Community Fund £1.8 million per annum
Locally based jobs 30
Operational 2017


See Pen y Cymoedd up close

The wind farm is located on an open access site, which attracts walkers and cyclists who ride its many trails and tracks. One of these is Blade – a mountain biking trail funded by Vattenfall.

Local benefits from the wind farm

Beyond the wind farm, more than 100 jobs have been supported by the project’s innovative community benefit scheme. Through a £1.8million annual investment, the funding is focussed on making a difference to the lives of local people – all made possible by the wind farm.

Young girl leaned over a fence, looking at the camera smiling.

Renewable investment to former mining town

Treorchy, a former mining town in the South Wales Valleys, is going from strength to strength, winning best UK high street in 2019. The town applied to the Pen y Cymoedd Community Fund for close to £25,000 towards their Visit Treorchy initiative. This initiative has helped to create the vision needed to unite vibrant businesses and over 50 community groups, forming a vision to encourage local people and visitors alike to come and explore this buzzing and bustling town.

The Lost Peatlands Project and the Habitat Management Plan

The Lost Peatlands Project and the Habitat Management Plan at Pen y Cymoedd Wind Farm will kick-start one of the largest peatland restorations in southern Britain, also creating better opportunities for local communities, young people and visitors to engage with the environment.

See also

Battery at Pen y Cymoedd Wind Farm

This battery project helps to keep a stable supply of electricity to the National Grid.

Parc Cynog wind and solar farm

Co-located with a wind farm, this project shares a grid connection.

Parc Cynog wind and solar farm

By 2030, our projects could be delivering electricity to 5 million UK homes.