🔌 EV Partnership Switch to Octopus Energy & unlock exclusive smart EV charging rates Find out more → Skip to main content

Grid infrastructure › Connection queue › Battery storage

BATTERY STORAGE · NGET

Fairgreen Energy Storage

Fairgreen Energy Storage is a 150 MW battery storage project in planning, connecting to the National Grid (England & Wales) network at Rayleigh Main 132kV Substation, with capacity due from October 2034. The connection agreement is held by Renewable Energy Systems Limited.

Project stageIn planning
  1. Planning (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingFrom Oct 2034 (not yet reached)
  5. Closed (not yet reached)

Scoping and awaiting consents are both shown as planning. A connection agreement does not mean the project will be built: many queue projects never reach construction.

Connection details

NESO project number
PRO-005899
Customer
Renewable Energy Systems Limited
Technology
Energy Storage System
Total capacity
150 MW
Change in this agreement
+150 MW
Capacity effective from
31 October 2034
Connection site
Rayleigh Main 132kV Substation
Transmission owner
National Grid (England & Wales)
Connection type
Embedded (connects through the local distribution network)
NESO project status
Scoping
Connections reform gate
Gate 1

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 132kV 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