(8/n) The heat reuse situation is better for data centres powered by the grid as the proportion of renewables in the UK is already high and growing, but it would still be better to use the electricity to power heat pumps to heat the homes than to power data centres. And you can't use waste heat to cool buildings.
(9/n) Unsurprisingly this is not just a UK thing:
"Welcome to Gas Land - how natural gas is powering the US AI boom"
"Aramco CEO says Saudi Arabia’s cheap energy will turn kingdom into a global AI data center leader"
https://www.cnbc.com/2025/11/04/aramco-saudi-arabia-ai-data-center.html
"A significant portion of Armaco’s capital spending is going toward boosting natural gas production more than 60% by 2030 "