Internet Activity: Energy Use

Lord Spellar Excerpts

Monday 27th January 2025 Lords Chamber

[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.

[Lord Spellar (Lab)]

My Lords, the expansion of data centres will require a significant expansion of the grid and of energy sources. In a written reply to me, the Minister indicated that, for the high-level grid, there is something like a four-year lead time for securing equipment. Furthermore, on energy sources, data centres need reliable sources of supply. Inevitably, that will mean the development of nuclear power, including small modular reactors. When will the Government get on and make a decision about the future of the small modular reactor programme?

[Lord Hunt of Kings Heath (Lab)]

My Lords, I agree with everything my noble friend said. He knows that we have a programme within Great British Nuclear to appraise the technology involved in a number of shortlisted small modular reactors. It is making considerable progress. We expect further announcements to be made in spring. My noble friend will understand that there are discussions taking place within the spending review.