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Cottam 400kV Substation

Cottam 400kV Substation (NGET) has 5 projects in NESO's TEC Register of 23 Oct 2026: 2,100 MW in the queue, 600 MW of it Gate 2, and 445 MW connected. Contracted capacity, not headroom.

Transmission owner: NGET
Projects: 5
MW in the queue: 2,100 MW
Gate 2 MW: 600 MW
MW connected: 445 MW
Earliest confirmed date: 1 Sept 2029

By technology

Technology	Projects	MW
Solar	4	2,100
Storage	4	2,100
Gas	1	445

Projects at Cottam 400kV Substation

Project	Technology	MW	Gate	Status	MW effective from
Cottam Solar PV + BESS	Storage, Solar	600	Gate 2	Consents Approved	1 Sept 2029
Cottam	Storage, Solar	250–500		Consents Approved	31 Oct 2029, 30 Jul 2030
Cottam PV & BESS	Storage, Solar	500		Scoping	31 Oct 2033
Tillbridge Solar	Storage, Solar	500		Scoping	27 Aug 2028
CDCL	Gas	445		Built

Source

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