
About 100 new data centres, the large anonymous-looking buildings containing the complex computer systems which power the online world, are to be built in the UK. Vital for all of your digital needs – from Netflix and banking, to AI and social media – they are the heart of the modern digital economy.
They are also very expensive to build and operate, using up enormous amounts of energy and water (as a coolant). Ten years ago, a centre consuming 30 megawatts (MW) of power (enough to power 30,000 houses) was considered large. Today 200 MW is normal.