Only a quarter of private electric vehicle (EV) drivers are on time of use (ToU) tariffs, while high wholesale prices and volatility will continue to limit uptake, Cornwall Insight said.
Charities have called on the government to cut energy bills for the most vulnerable households, as they warn 8.5 million UK households face fuel poverty.
Volatility in the wholesale energy market is likely to last until at least 2030 unless significant changes are made to long-term energy strategies, according to Cornwall Insight.
