Yeah, that's exactly what they've been doing - I have a windup radio and some electric network expert was explaining it.
Power has been back up were I live since about an hour ago but before I was listening on the radio as they kept announcing places coming back up during the afternoon and evening.
Unless the new Treaty properly covers Services and hence includes Freedom Of Movement (which is required for suppliers in one country to freely provide services which cannot be remotelly provided in other countries), not really.
One of the biggest arguments of the Brexiters was to be able to get rid of Freedom Of Movement so that they didn't have to accepts all immigrants from the EU (all of which with time ended up with the funny outcome that now Britain still gets as many immigrants coming in as they did when part of the EU, only now they're almost all non-white something which the Brexiters - who are almost invariably racist - find even more distasteful).
I very much doubt that the current, New Labour, government who are maybe the most rightwing Labour government ever and have even been blowing a couple of far-right anti-immigration dog-whistles will be accepting the return of Freedom Of Movement.