Energy storage and grid stability specialist Pulse Clean Energy has announced the successful energisation of its 22MW / 49.5 MWh battery storage project at the Hirwaun Industrial Estate in Aberdare.
The project marks Pulse Clean Energy’s first two-hour duration battery, playing a pivotal role in enhancing grid stability by storing excess energy generated during periods of high renewable output and releasing it back to the grid when demand is high. This advanced facility will support the integration of renewable energy into the UK’s power system, reducing reliance on fossil fuels and improving energy security.
As the fifth of nine sites that Pulse Clean Energy is converting from diesel generating sites to grid-scale battery storage assets, the project represents a broader strategy to repurpose legacy infrastructure for cleaner, more sustainable energy solutions.
With a peak output of 21.76 MW, the facility can power over 48,000 homes for over two hours, helping secure energy supply for local communities and businesses.
The battery’s two-hour duration gives it increased capacity to balance energy supply. This helps the National Grid Electricity System Operator (NESO) to manage the grid.
The project was financed using Pulse Clean Energy’s £175 million credit facility with Santander, CIBC, Investec, and the National Wealth Fund, alongside equity from the Investment Management Corporation of Ontario (IMCO). Habitat is optimising the asset and Pulse Clean Energy was advised by Eversheds (legal), Everose (technical through PAC support), and Fichtner Consulting Engineers (technical through design and engineering).
Trevor Wills, CEO of Pulse Clean Energy, said:
“The successful commissioning of our first two-hour battery project is a milestone for Pulse Clean Energy as we continue to advance our strategy to support the integration of renewable energy solutions into the UK’s grid. Battery storage is crucial to strengthening the resilience of the grid and enable growth in renewable generation.
The environmental impact of this project is far-reaching and will deliver significant benefits to the local communities in Aberdare and its surrounding areas, strengthening energy security, and establishing a cleaner, more sustainable future for Wales.”
