Re: So 35% of elec is residential
It's actually not "hand waving bollocks"
This has been a very active topic of discussion in the industry (datacentre, EirGrid, ESB Networks, and generators) for well over 5 years. The growth and magnitude has been and continues to be/become very difficult to manage. It has major knock on effects on the energy system and on other industries too (as getting grid connections has become much more difficult).
What you're seeing here is that discussion protruding into general consumption media.