While Brexit – the impending departure of the UK from the European Union – looms, bringing uncertainty into the country’s economy and international relationships, the role energy storage will play in a decentralised, low(er) carbon and more flexible energy system at least seems a little more assured than it did before.

Involvement from billionaire Peter Thiel in Stem’s Series C indicates a shared belief among investors that “distributed, intelligent storage is going to absolutely revolutionise the electric grid over the coming decades”, the company’s marketing director has said.

While the effectiveness of flow batteries in islanded situations is quickly being recognised, on the grid, the cost of providing that storage is still seen as something of an inhibitor to uptake. Andy Colthorpe spoke with the RedT CEO, Scott McGregor, to get his views on how flow batteries can thrive – and why lithium-ion is not the enemy.

A small municipal utility will be the recipient of what is thought to be one of the first US projects to try out a combination of revenue streams from a storage battery linked to a solar farm.