Twyn Hywel Energy Park

Located 2km north-west of Caerphilly, Twyn Hywel Energy Park is our flagship onshore wind energy park.

The energy park will have 14 wind turbines with a maximum blade tip height of 200m, turbine foundations, crane hardstanding and laydown/storage areas. It will generate up to 93.8MW of clean, green energy, enough to power approximately 81,000 households a year. ¹

We first consulted on our proposals for the project in 2021 – and in late 2024, we received planning approval from Welsh Government.  Click here to view the approved planning application and the decision notice – search for DNS/3272053

We’re now building the energy park – expected to be generating renewable energy by late 2027.

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Latest news

17.06.2026

Construction begins at Twyn Hywel Energy Park in Caerphilly

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12.03.2026

Caerphilly energy park reaches milestone as Knights Brown appointed to build

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10.02.2026

Energy Park in Caerphilly Successful in UK Allocation Round 7

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05.11.2024

Wales Powers Ahead: Approval of Onshore Wind in ‘landmark’ for Wales

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¹ Based on analysis of the windspeeds at the site and the turbine design currently proposed. 92.4MW total capacity time 8,760 (hours per year) time capacity factor divided by average UK household electrical consumption of 3,578kWh (Digest of UK Statistics 2019) times 100-unit conversion equals 80,648.