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New Dounreay 400kV substation

New Dounreay 400kV substation (SHET) has 2 projects in NESO's TEC Register of 23 Oct 2026: 1,700 MW in the queue, 1,700 MW Gate 1, and 0 MW connected. Contracted capacity, not headroom.

Transmission owner: SHET
Projects: 2
MW in the queue: 1,700 MW
Gate 1 MW: 1,700 MW
MW connected: 0 MW

By technology

Technology	Projects	MW
Offshore wind	1	1,500
Storage	1	200

Projects at New Dounreay 400kV substation

Project	Technology	MW	Gate	Status	MW effective from
Havbredey	Offshore wind	1,500	Gate 1	Scoping	30 Oct 2033
Dounreay BESS	Storage	200	Gate 1	Scoping	31 Oct 2034

Source

NESO TEC Register, National Energy System Operator, publication of 23 Oct 2026. NESO Open Data Licence.