Ofgem targets datacentre builds with megawatt connection cost

Vitality regulator Ofgem has proposed modifications to datacentre grid connectivity to handle capability whereas prioritising what the federal government deems “strategically vital” initiatives.

Ofgem stated the electrical energy grid has skilled larger demand for connectivity as a result of growth of datacentres.  Between November 2024 and June 2025, it reported that contracted demand within the connection queue elevated from 41GW to 125GW. Out of this, round 73GW are datacentres. For comparability, it stated peak demand in Nice Britain in 2025 was 45GW.

The proposals are geared toward tackling speculative initiatives from securing scarce community capability with none agency intention to attach, making certain the queue for connectivity allows investment-ready, viable initiatives.  

In response to Ofgen, each the variety of purposes for grid connectivity and the dimensions of capability being sought can be growing. It warned that the dimensions of this demand from datacentre corporations is such that even when the share of non-viable and speculative connection purposes  have been decrease than different sectors, the impacts would nonetheless be appreciable.

To curb demand, Ofgem has proposed a Information Centre Dedication Charge, which might be paid by massive datacentre developments when accepting a connection provide. The price could be refunded when the undertaking reaches energisation and forfeited if the undertaking exits the queue early. Ofgem stated the price could be set inside a proposed vary of £237,500 to £712,500 per megawatt, equal to round 2.5% to 7.5% of common undertaking prices.

The regulator has raised considerations {that a} vital quantity of initiatives ready for approval of grid connectivity could not finally proceed, which probably impacts  viable initiatives and creates a deceptive sign about future community funding wants.   

Because the introduction of wider connections reform measures, round 7.8GW of initiatives have been accelerated by a mean of six years. In response to Ofgem, this has helped to convey ahead funding and enabled initiatives to attach a lot earlier than would in any other case have been doable.  

Ofgem expects the proposed reforms to have an analogous affect on demand connections, serving to to prepared initiatives safe well timed entry to the grid whereas liberating up capability held by speculative purposes. 

Alongside the proposed price, Ofgem can be consulting on a datacentre-specific queue administration milestones that it stated means builders might want to reveal tangible progress via proof corresponding to monetary functionality, business maturity and procurement exercise in the event that they want to retain their place within the queue for grid connectivity. Particularly, initiatives that meet the standards for grid connectivity might want to present proof at outlined milestones to reveal: a reputable end-user of the datacentre, procurement of long-lead electrical tools, and monetary and technical functionality to develop a datacentre to energisation, which includes the commissioning of energy.

Commenting on the proposed modifications, Ofgem’s director for power system design and improvement, Eleanor Warburton stated: “Britain’s electrical energy demand connections queue has greater than tripled in dimension in lower than a yr, and customers mustn’t bear the dangers created by speculative initiatives taking on house within the system.  

“The connections system should work for customers and for the initiatives which can be prepared to speculate, construct and join. The place speculative initiatives take up house within the queue, they will delay different schemes and create uncertainty about future community wants.  

“We’re consulting on a brand new datacentre dedication price and stronger necessities to make sure initiatives reveal actual dedication earlier than securing scarce community capability. These reforms will assist release capability for viable initiatives, enhance confidence in community planning and help sooner connections the place they’re wanted most.”