Key facts
- Ofgem is proposing new rules and an upfront commitment fee for large AI data centre projects.
- Data centres represent a significant portion of new power connection applications.
- The proposed fee for developers ranges from £237,500 to £712,500 per MW.
- The reforms aim to prioritize projects ready for construction and improve grid planning.
Ofgem, the energy regulator for Great Britain, has proposed new rules and significant upfront fees for AI data centre projects to address a logjam in electricity grid connections. The proposals aim to thin out speculative schemes by requiring projects to lodge substantial fees or financial security, such as letters of credit, bonds, or cash deposits, when they receive a connection offer. These fees would be returned once the data centre is operational.
Currently, 315 data centres are queueing for grid connections, representing 73GW of demand, which far exceeds the country's peak energy demand of 45GW. Ofgem is suggesting that data centre providers, including companies like Amazon and Microsoft, could be required to pledge £350 million to reserve 500MW of grid capacity. The goal is to ensure that limited grid capacity is allocated to projects most likely to be built, rather than those merely preserving options.
This initiative comes in response to a surge in electricity connection applications, which more than tripled between November 2024 and June 2025, with data centres being a major contributor. The boom in data centre demand is linked to the growing energy needs of AI tools. Ofgem noted that projects will need to meet "hard milestones" during the application process, such as securing customers and financial backing, and will be removed from the queue if they fail to do so.
Concerns about speculative data centre projects are global, with the Uptime Institute identifying numerous projects worldwide that may not be completed. In the UK, industry figures like Dame Dawn Childs, CEO of Pure Data Centres, have warned about speculative developers seeking to profit from rising land values without necessarily having the infrastructure to become operational. Ofgem director Eleanor Warburton stressed that consumers should not bear the risks of speculative projects monopolizing grid space.
The proposals are now open for a consultation period, which closes on September 16. These reforms are part of broader efforts by Ofgem and the National Energy System Operator to streamline grid connections for investment-ready projects.