Re: Energy Security
".... that renewables compete with nuclear for base load is still broadly true –" Hardly!!
Nuclear is generally available 24/7/365, whereas renewables are very 'un'reliably linked to sun & wind weather variations - see last 2 weeks of Dunkleflaut effect on solar & wind production.
It matters not how much more solar & wind installation we build, if its not available when needed then its not effective. These sources should hsve always been required to provide baseload (& other functions such as frequency control, backup, inertia), but of course that inflates their costs way beyond CCGT plants & hence never contracted - another example of uncosted Net Zero !planning.