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Turbine blade sizes could be increased at a proposed wind farm potentially capable of powering 81,000 homes.

The Welsh Government approved Twyn Hywel Energy Park last year, and developer Bute Energy is expected to start building the wind farm next year between Cilfynydd, Nelson and Senghenydd.

The approved plans allow for up to 14 wind turbines on the site, as well as other electrical infrastructure including a substation and underground power cables.

A new request to amend those plans would increase the overall diameter of the turbine rotors from 155 metres to 163 metres.

The proposals also include increasing the height of an on-site transformer from six metres to 11 metres, and enlarging the site’s “grid connection corridor”.

Despite proposing to increase the size of the turbine blades, planning agents Savills said the amendments would be “compliant” with the planning permission already granted – and would not exceed the 200-metre maximum height of each structure.

That is because the “hub height of the wind turbine will be reduced”, the agents explained.

According to Bute Energy, Twyn Hywel could generate enough energy to power 81,000 homes by 2027.

The development is also “expected to create hundreds of jobs directly and through the supply chain, and will generate a community investment fund of almost £700,000 every year for 40 years”, the firm added.

The application is currently out for consultation, and can be viewed on the Caerphilly County Borough Council website under reference 25/0342/NCC.