Grid infrastructure βΊ Connection queue βΊ Wind + storage
WIND + STORAGE Β· NGETER TWD Energy
ER TWD Energy is a 700 MW wind + storage project in planning, connecting to the National Grid (England & Wales) network at Llanteg 400kV Substation, with capacity due from September 2037. The connection agreement is held by Er Project Development Co Limited.
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Sep 2037 (not yet reached)
- 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-003719
- Customer
- Er Project Development Co Limited
- Technology
- Energy Storage System, Wind Onshore
- Total capacity
- 700 MW
- Change in this agreement
- +700 MW
- Capacity effective from
- 15 September 2037
- Connection site
- Llanteg 400kV Substation
- Transmission owner
- National Grid (England & Wales)
- Connection type
- Direct connection to the transmission network
- NESO project status
- Scoping
- Connections reform gate
- Gate 1
Connection site
The marker shows the place the connection site is named after, not the project itself, with the transmission network around it.
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