Rather than using water, HD Hydro it uses a fluid which is 21⁄2 times denser than water, and which can provide 21⁄2 times the power for a given footprint when compared with conventional hydro, meaning that HD Hydro can make use of hills rather than mountains, “opening up massive opportunities in the UK and around the world”, says RheEnergise.

“We see enormous potential for HD Hydro deployment as a future low-carbon alternative to our existing gas-powered assets,” said Graham White, CEO at Mercia PR.