Welcome to Mynydd Mawr Energy Park
GALILEO empower is developing proposals for Mynydd Mawr Energy Park on land situated between the Ceiriog and Tanat valleys in north eastern Powys and southern Wrexham, adjacent to the Shropshire border and approximately 8km west of Oswestry.
The proposals include up to 21 wind turbines with a maximum height to blade tip of 230m. Solar photovoltaic panels and battery energy storage system (BESS) technology are also being considered at the Energy Park, subject to the completion of further technical studies.
The Mynydd Mawr Energy Park site benefits from an excellent wind resource and is currently used for upland grazing.
As Mynydd Mawr Energy Park will have a capacity between 10 and 350MW it is classed as a Development of National Significance (DNS) under the Planning (Wales) Act 2015. The planning application will be made to Planning and Environment Decisions Wales (PEDW). PEDW will examine the application and make a recommendation to Welsh Ministers, who will then take the final decision.
Although Powys County Council and Wrexham County Borough Council will not determine the planning application, they are key statutory consultees and will prepare a Local Impact Report.
The expectation is that the planning application will be submitted in early 2026.
If the Mynydd Mawr Energy Park is approved, the Energy Park could generate up to 147 MW from wind energy alone, enough to power up to 122,000 homes.1 This could offset some 173,000 tonnes of carbon dioxide emissions per year, assisting in tackling the climate emergency and supporting Wales to achieve its target of net-zero greenhouse gas emissions by 2050.2
Mynydd Mawr Energy Park will be developed in close partnership with the local community, with an extensive and wide-ranging consultation which will provide local people with opportunities to participate in and contribute to the development of the project.
