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Grid infrastructure › Connection queue › Solar + storage

SOLAR + STORAGE · NGET

Rayleigh 1 Tertiary

Rayleigh 1 Tertiary is a 57 MW solar + storage project consented, connecting to the National Grid (England & Wales) network at Rayleigh Main 400kV Substation, with capacity due from October 2028. The connection agreement is held by Rayleigh Green Limited.

Project stageConsented
  1. Planning (completed)
  2. Consented (current stage)
  3. Construction (not yet reached)
  4. OperatingFrom Oct 2028 (not yet reached)
  5. Closed (not yet reached)

Connection details

NESO project number
PRO-000460
Customer
Rayleigh Green Limited
Technology
Energy Storage System, PV Array (Photo Voltaic/solar)
Total capacity
57 MW
Change in this agreement
+57 MW
Capacity effective from
31 October 2028
Connection site
Rayleigh Main 400kV Substation
Transmission owner
National Grid (England & Wales)
Connection type
Direct connection to the transmission network
NESO project status
Consents Approved

Connection site

The marker shows the connection substation, not the project itself, with the transmission network around it.

Projects connecting near Rayleigh Main · Grid map

Other projects at Rayleigh Main 400kV Substation

Source: NESO Transmission Entry Capacity (TEC) register, downloaded 8 November 2026. Contains data from NESO, licensed under the NESO Open Data Licence. Report a problem