I second that .....
about tidal power .....
I remember nearly 40 years ago .....
telling an electronics engineer a known was exactly how much potential was in a tide ....
he (from a landlocked country rather behind in technical matters) said that it was not a known .....
I saw when Parliament did the report on the intended 'Bondi' Severn Tidal Barrage (1300 MW equiv. c.8000 MW max)
since then I discovered that Bondi disagreed others eg whether tides are gravitational waves or progressive waves
Bondi's output was politically and commercially convenient - but now again seems wrong (& different to MacKay's)
ie B said there was no benefit siting the barrage west of his chosen Cardiff-Weston line - but M shows otherwise
and now shipping interests have expanded their position
M seems to show us there's still scientist's differences of opinion about fundamentals - despite experimentation
maybe additive to the usual slippage from science's concepts to legitimate engineering targets
eg do we know if Severn Tidal Lagoons make unviable a Severn Tidal Barrage (or vice-versa) ? or each other ?
or whether 'outer' Severn tidal stream generation wouldn't downgrade a STB ?
Joe Public has more faith in 'science' than engineers (should) have
ok modern power electronics seem to have enabled tidal stream generation (as they did for wind)
they also help wave-energy generation - but it's beyond help eg with worsening storms expected from climate change
nuclear-powered thermal generation has low efficiency - so suffers more with climate raising of coolant water temp