Sloy power station, Loch Lomond, Scotland Andrew Wilson/Alamy
Turning more of the UK鈥檚 mountains into massive 鈥渨ater batteries鈥 could substantially reduce the need for new nuclear power stations and save the country hundreds of millions of pounds, researchers have estimated.
New pumped hydro projects, which use off-peak electricity to pump water uphill and release it later to generate electricity, could save the UK energy system between 拢44 million and 拢690 million a year by 2050, according to a report by a team at Imperial College London. The exact figure hinges on how much of the storage technology is built…


