SmartestEnergy and Bute Energy sign landmark Power Purchase Agreement

The 20-year Contract for Difference (CfD) Power Purchase Agreement (PPA) for the 93.4MW Twyn Hywel Energy Park in South Wales marks a major milestone for renewable energy, with capacity to power around 81,000 homes.

LONDON, 12 May, 2026 – SmartestEnergy, the renewables-focused energy company helping Britain’s independent generators and businesses navigate the energy transition, has signed a 20-year CfD PPA with Bute Energy for the Twyn Hywel Energy Park.

Located on the border of Caerphilly and Rhondda Cynon Taf, the Twyn Hywel Energy Park project will comprise 14 wind turbines with a total installed capacity of 93.4MW. This is enough to power around 81,000 households each year. The project was awarded a CfD in Allocation Round 7 (AR7), with a target Commercial Operations Date in late 2027.

As a transmission-connected onshore wind asset, Twyn Hywel represents a significant addition to the UK’s renewable energy infrastructure. SmartestEnergy’s experience in transmission-connected wind assets and its competitive pricing were central to its selection as route to market partner, following a tender process in which Bute Energy was supported by investment partner, Copenhagen Infrastructure Partners (CIP).

Beyond its energy output, the project is expected to create around 300 jobs, delivering meaningful social and economic value for local communities in Wales. Bute Energy is committed to harnessing its investment in the decarbonisation of Wales’ energy system to create a lasting legacy of skills, jobs, and investment for Wales, creating meaningful opportunities for communities in the energy transition.

Will Russell, Business Development Manager, SmartestEnergy said: “Wales is at a defining moment in its energy transition and SmartestEnergy is proud to be part of it. Working with Bute Energy on Twyn Hywel Energy Park to provide a long-term route to market for a project of this scale reflects our focus on getting the commercial foundations right, so that projects like this can deliver lasting value for the UK energy system.”

Sid Anverali, Project Director at Bute Energy, said: “We’re proud to deliver this project with SmartestEnergy, and we intend to make it count, not just in megawatts but in skills, jobs, and long-term investment for the communities around Caerphilly and Rhondda Cynon Taf. We knew we needed a long-term partner who could go beyond being a capable counterparty and one that shares our ambition for the next two decades and beyond. SmartestEnergy brings exactly that in deep expertise, genuine flexibility, and a team that understands what a project of this scale truly demands.”

The Twyn Hywel Wind project further strengthens SmartestEnergy’s growing presence in the CfD market and transmission-connected space, and reflects its broader commitment to helping renewable generators succeed in the transition to a low-carbon energy system.