Grid infrastructure › Connection queue › Solar + storage
SOLAR + STORAGE · NGETHirfynydd and Mynydd Drumaur
Hirfynydd and Mynydd Drumaur is a 249 MW solar + storage project in planning, connecting to the National Grid (England & Wales) network at Swansea North 400kV Substation, with capacity due from December 2036. The connection agreement is held by Edf Energy Renewables Limited.
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Dec 2036 (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-001899-2
- Customer
- Edf Energy Renewables Limited
- Technology
- Energy Storage System, PV Array (Photo Voltaic/solar), Wind Onshore
- Total capacity
- 249 MW
- Change in this agreement
- +19 MW
- Capacity effective from
- 6 December 2036
- Connection site
- Swansea North 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 connection substation, not the project itself, with the transmission network around it.
Other projects at Swansea North 400kV Substation
- Swansea North Green Energy CentreSolar + storage · 1.0 GW · Scoping
- SwanseaSolar + storage · 400 MW · Scoping
- Swansea North Green Energy CentreSolar + storage · 400 MW · Scoping
- Hirfynydd and Mynydd DrumaurSolar + storage · 230 MW · Scoping
- BESS SwanBattery storage · 200 MW · Scoping
- Swansea Greener Grid Park - Connection 1Battery storage · 97 MW · Scoping
- Swansea NorthBattery storage · 50 MW · Scoping
- Peak Gen LlandarcyGas · 21 MW · Built
- Swansea Greener Grid Park - Connection 1Battery storage · 12 MW · Under Construction/Commissioning
- Swansea Greener Grid Park - Connection 2Other · 0 MW · Consents Approved
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