The sun shines when it shines and the wind blows when it blows: But when it's both dark and calm, it's not possible to take advantage of the ever-increasing wind and solar capacity installed in and around the UK. It follows that energy storage is one of the key technologies needed to enable our urgent transition to #Zerocarbon. British company #RheEnergise is adapting the tried and tested pumped water storage method to enormously enhance its viability and uptake. Their so