Maximising flexibility could reduce the cost of managing a decarbonised electricity system by £5 billion per year, Policy Exchange says in a new report, Power 2.0. That figure has been estimated by Imperial College researchers, it says, but under current operating regulations, “Cleaner forms of flexibility such as storage and demand response are failing to live up to their potential, and losing out to dirtier forms of flexibility such as small-scale diesel and gas engines.”