Internet Activity: Energy Use

Lord Patel Excerpts

Monday 27th January 2025 Lords Chamber

[Lord Hunt of Kings Heath (Lab)]

My Lords, I certainly accept the challenge from the noble Lord: as we wish to see the encouragement of data centres and the use and development of AI in the UK, clearly we want it to be sustainable. I make the point that, in the first place, newer cryptocurrencies use less energy than the original ones, and, secondly, that data centres are increasingly looking to energy efficiency methods. AI can be used as one way in which to improve our management of energy efficiency.

[Lord Patel (CB)]

My Lords, the Minister said that current data centres use about 2% of total electricity generation. Can he quantify that in respect of how many terawatt hours are currently being used by data centres? With the Government’s ambition for AI and the development of more data centres, what will be the requirement in terawatt hours by 2030?

[Lord Hunt of Kings Heath (Lab)]

My Lords, my understanding is that NESO has estimated that 7 terawatt hours will be used by data centres in 2025, rising to 22 terawatt hours in 2030 and to 62 terawatt hours in 2050. As a comparison, it expects annual electricity demand in 2050 to be between 533 and 700 terawatt hours.