@#7 ... The issue now is where will that electricity be generated. ...
A similar question was being asked in the US about oil, until shale oil retrieval was discovered.
If there is a need for electricity, it will be provided. Capitalism, you know.
... Power on a grid is not stored ...
Actually, it is stored. A few miles from me is Candlewood lake. The power company created the lake to store power. Overnight when power was abundant, water was pumped up to the lake which was a hundred or so feet higher than the river. During the day when power was needed, the water was released to power generators.
But that's old technology.
The past few years there has been movement toward providing storage in neighborhood settings, even down to the house level.
Power storage is being driven by the significant uptick of wind- and solar-generated electricity.
Nuclear power can work (it has on navy ships for a while), but we need to get away from the "each reactor is a different design" problem and move towards a more modular type of reactor.