Grid Crunch: AI Data Centres and the Housing Squeeze
The UK government has proposed reforms that could allow AI data centres to receive priority access to the electricity grid. On the other hand, the Home Builders Federation has warned that failing to prioritise connections for housing developments would amount to an effective "moratorium" on new homes.
The Queue Crisis
Currently, all new infrastructure, from hospitals to industrial sites, must join a virtual queue to secure an electricity connection. In the first half of 2025, the queue grew by 460%, driven mostly by power-hungry data centres, leaving some projects waiting years before they can proceed.
In November, Ofgem warned that the queue had surged past "even the most ambitious forecasts for future demand". The regulator cautioned that some projects were only "speculative", lacking sufficient financing, proper planning permission, or land rights to proceed. The risk is that genuine projects capable of providing new jobs and local economic growth are being blocked.
The Government's Proposals
The government plans to tackle this problem by prioritising projects that offer the most economic development and job creation. It will consult on allowing ‘strategically important’ projects to skip the queue, including AI infrastructure, EV charging hubs, and industrial sites switching away from fossil fuels.
AI Minister Kanishka Narayan, to the BBC, said: "Delivering data centres relies on access to the grid. These timely reforms will help us move at pace, to seize AI's potential to help build a wealthier and fairer Britain." Simultaneously, Ofgem is consulting on tightening the rules to join the queue in the first place.
Housing Sector Concerns
The Home Builders Federation raised concerns that new housing was not included within the proposed priority categories, warning that, unless housing is also prioritised, constrained grid capacity could operate as an effective moratorium on new homes in some areas. London Assembly members warned in December that this was already the reality in parts of the capital, with some housing developments in west London reportedly delayed after the electricity grid reached capacity. Data centres may also benefit from increasingly favourable treatment in national policy and planning.
Scale of Future Demand
There are nearly 500 data centres already operating across the UK, accounting for 2% of the country's electricity demand. There are an estimated 140 data centres currently in the queue for a new electricity connection.
The growth of AI will increase the number of centres as more processing power is needed. According to the grid operator, electricity demand from data centres could increase by up to six-fold between now and 2050.
Looking Forward
These proposals highlight the tension between the government's AI ambitions and its commitment to addressing the housing crisis. Organisations involved in infrastructure development, energy planning, or housing construction should monitor the outcome of these consultations closely. For housing developers, engagement with the consultation process may be critical to ensuring residential development is not systematically disadvantaged in the competition for grid capacity.
