For distribution networks operated by SSEN Distribution, the SSEN Distribution Embedded Capacity Register (2026) lists connected or accepted generation and storage resources of 50 kilowatts (kW) and above. For data centre screening:
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A register entry is not proof of available import power.
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Substation export listings do not indicate available import capacity.
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Buyers require written site-specific network evidence.
Submit candidate site requirements for distribution network screening.
Grid capacity map data versus written connection offers
A grid capacity map provides indicative signals for data centre land.
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What reinforcement liabilities or curtailment terms apply?
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Will phased schedules align with information technology (IT) deployment across the West London grid?
Grid connection reform and data centre queue milestones
Under connection reforms proposed by the Office of Gas and Electricity Markets (Ofgem), planned data centre projects above a 40 megawatts (MW) threshold would be required to secure a returnable financial commitment per megawatt from connection offer acceptance until energisation (Ofgem, 2026).
Per the Ofgem Curate Consultation (2026), proposed criteria to retain a position in the UK grid connection queue would include:
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Demonstrating a credible compute customer or end-user.
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Procuring long-lead electrical equipment, financial capability, and technical readiness.
Proposed milestones would apply to self-operated facilities and projects for lease or sale (Ofgem, 2026). Following consultation closure on 16 September 2026 (Ofgem, 2026), decisions are expected later in 2026 (Ofgem, 2026).
Site sourcing advisory
Request site sourcing advisory across the UK.
Grid screening questions
Does an embedded capacity register prove import capacity?
No. As published by SSEN Distribution (2026), the register lists connected or accepted generation and storage resources of 50 kW and above. It does not provide evidence of available import capacity.
Screen UK data centre sites through our private deal network.
