Grid infrastructure βΊ Connection queue βΊ Solar + storage
SOLAR + STORAGE Β· NGETBanc y Celyn Energy Park
Banc y Celyn Energy Park is a 165 MW solar + storage project in planning, connecting to the National Grid (England & Wales) network at Rassau GSP, with capacity due from October 2037. The connection agreement is held by Parc Ynni Banc Y Celyn Cyf.
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Oct 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-004395
- Customer
- Parc Ynni Banc Y Celyn Cyf
- Technology
- Energy Storage System, PV Array (Photo Voltaic/solar), Wind Onshore
- Total capacity
- 165 MW
- Change in this agreement
- +165 MW
- Capacity effective from
- 31 October 2037
- Connection site
- Rassau GSP
- Transmission owner
- National Grid (England & Wales)
- Connection type
- Embedded (connects through the local distribution network)
- NESO project status
- Scoping
Connection site
The marker shows the connection substation, 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