Fill nuclear gap or see bills soar.
Nuclear generating capacity in the UK is forecast to fall by 75per cent in the next few years and EU rules are set to further reduce capacity by 2016.
Energy analyst Tony Lodge warns the UK could be dependent on gas for more than 80per cent of electricity generation by 2025.
He said most would be imported and would lead to higher bills.
In a report, he urged the UK Government to offer more incentives to get investors to bankroll new nuclear power stations.
He said: "They should be reassuring investors, not heightening uncertainty."
The Scottish Government are opposed to nuclear energy and are instead backing renewable sources to fill any energy gap.