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Grid infrastructure β€Ί Connection queue β€Ί Battery storage

BATTERY STORAGE Β· NGET

Isenau Eight

Isenau Eight is a 249 MW battery storage project in planning, connecting to the National Grid (England & Wales) network at Hawthorn Pit 400kV Substation, with capacity due from October 2033. The connection agreement is held by Isenau Energy Storage Resources Eight Limited.

Project stageIn planning
  1. Planning (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingFrom Oct 2033 (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-003164
Customer
Isenau Energy Storage Resources Eight Limited
Technology
Energy Storage System
Total capacity
249 MW
Change in this agreement
+249 MW
Capacity effective from
31 October 2033
Connection site
Hawthorn Pit 400kV Substation
Transmission owner
National Grid (England & Wales)
Connection type
Direct connection to the transmission network
NESO project status
Scoping

Connection site

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

Projects connecting near Hawthorn Pit Β· Grid map

Other projects at Hawthorn Pit 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