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:
-
A register entry is not proof of available import power.
-
Substation export listings do not indicate available import capacity.
-
Buyers require written site-specific network evidence.
Submit candidate site requirements for distribution network screening.
Grid capacity map data versus written connection offers
A digital grid capacity map provides indicative signals rather than secured import capacity. Connection offers outline proposed terms, but do not assure physical energisation without completed studies and satisfied conditions. When assessing data centre land, buyers should ask:
-
What reinforcement liabilities or curtailment terms apply?
-
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:
-
Demonstrating a credible compute customer or end-user.
-
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 and power feasibility review
Candidate-site screening is available through a focused manual review. Direct introductions are arranged around stated requirements. Candidate options are shortlisted with evidence across the wider UK market, leaving commercial terms to be agreed directly between parties.
Grid screening questions
What is the SSEN Distribution embedded capacity register?
The SSEN Distribution (2026) register details connected generation and storage resources of 50 kW and above.
Does an embedded capacity register show available import capacity?
No. An entry does not prove import power. Buyers need written site-specific evidence.
What is a grid connection offer?
A formal document detailing proposed terms and reinforcement liabilities, subject to network studies rather than assured energisation.
Screen UK data centre sites through our private deal network.