Rayleigh Main 400kV Substation
Rayleigh Main 400kV Substation (NGET) has 6 projects in NESO's TEC Register of 23 Oct 2026: 513.8 MW in the queue, 150 MW Gate 1, and 0 MW connected. Contracted capacity, not headroom.
- Transmission owner
- NGET
- Projects
- 6
- MW in the queue
- 513.8 MW
- Gate 1 MW
- 150 MW
- MW connected
- 0 MW
By technology
| Technology | Projects | MW |
|---|---|---|
| Storage | 5 | 393.8 |
| Onshore wind | 1 | 120 |
| Solar | 2 | 114 |
Projects at Rayleigh Main 400kV Substation
| Project | Technology | MW | Gate | Status | MW effective from |
|---|---|---|---|---|---|
| Fairgreen Energy Storage | Storage | 150 | Gate 1 | Scoping | 31 Oct 2034 |
| Middlewick Wind | Onshore wind | 120 | Scoping | 31 Oct 2034 | |
| Dollymans Storage | Storage | 99.8 | Scoping | 12 Jan 2023 | |
| Rayleigh 1 Tertiary | Storage, Solar | 57 | Consents Approved | 31 Oct 2028 | |
| Rayleigh 2 Tertiary | Storage, Solar | 57 | Scoping | 31 Oct 2028 | |
| Rayleigh GP3 | Storage | 30 | Scoping | 30 Oct 2034 |
Source
- NESO TEC Register, National Energy System Operator, publication of 23 Oct 2026. NESO Open Data Licence.