My biggest issue is with energy security. That critical, many of the other arguments have very little impact.
Tidal is viable its proven techology just need some investment.
Nuclear is the same, exept the fuel is running out. And the more countries who move to it the less thee will be, we do not have any fuel in the UK.
Wind is not viable as it cannot be relied on.
Coal is viable we have about 100 years worth.
Oil is vaialble but its better used to make petrol and pastic as they give a higher return. We have about 40 year worth.
I have always advocated tidal for Scotland. As a Civil Engineer i hated to see all those wind project come into the office as i knew it was really a red herring.
Solar has a small merit in reducing the base load, but its small amounts, enough to heat your water in the winter at best.