"nightjar .me.uk" cpb@insert my surname here wrote in message
...

I was specifically addressing DD's suggestion that the entire power supply
for the UK could be derived from tidal power in the Irish Sea.

It can. Understand what a tidal lagoon is.

I think a lot of work still needs to be done on the effects of the lagoons
on marine environments.

The lagoons will protect it and act as fish farms too. And bridges for
railways/Maglev