UK energy storage developer KiWi Power has launched a multi-million-pound smart battery system in Wales.

The size of three shipping containers, the 4 MW system took three months to build and will provide balancing services to National Grid to regulate the frequency of Britain’s electricity network.

KiWi Power said it “marks a significant milestone in the application of ‘behind-the-meter’ smart battery technology in the UK, with capacity to store enough energy to power thousands of Welsh homes when needed, helping to build a low carbon economy in Wales”.

The system is located at Cenin Renewables at Parc Stormy near Bridgend, a 20-acre cluster of integrated clean energy technologies that includes a solar farm, an anaerobic digestion plant and a wind turbine.

“This is all about having green energy in reserve and we are delighted to play our part delivering a reliable, sustainable power source whilst providing local economic development and helping Wales reach its low emissions targets,” said Martyn Popham, Cenin managing director.

He added: “Smart batteries are both green and cost-effective, reducing the need for inefficient backup power stations by allowing excess energy to be stored and used when the sun isn’t shining and the wind has stopped blowing”.

Yoav Zingher, chief executive of KiWi Power, said the facility “is an exciting addition to KiWi Power’s battery portfolio, and a key part of our strategy to develop, finance, build and monetise the highest value battery systems on customer sites across Europe”.

“Our state-of-the-art technology enables large power users like Cenin to reap the rewards from battery energy storage, with no upfront investment or risk to them, reducing their bills and their carbon footprint”.            

The Cenin Group was set up to invest in clean technologies and energy generation and to follow the examples of some of the leading projects in Europe.

The anaerobic digestion plant at Cenin produces a constant 3.2 MW of electricity and is owned and operated by Agrivert. It was opened by the First Minister of Wales, Carwyn Jones, in 2016.  It is the first of its kind in Wales, with the plant converting food waste and organic matter into biogas which fuels an electricity generator.