Grid infrastructure βΊ Connection queue βΊ Battery storage
BATTERY STORAGE Β· SHETNetherton BESS
Netherton BESS is a 400 MW battery storage project in planning, connecting to the SSEN Transmission (north Scotland) network at Longside 400kV Substation, with capacity due from October 2033. The connection agreement is held by Harmony Energy Limited.
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Oct 2033 (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-004626
- Customer
- Harmony Energy Limited
- Technology
- Energy Storage System
- Total capacity
- 400 MW
- Change in this agreement
- +400 MW
- Capacity effective from
- 31 October 2033
- Connection site
- Longside 400kV Substation
- Transmission owner
- SSEN Transmission (north Scotland)
- 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.
Other projects at Longside 400kV Substation
- Marram Wind Offshore Wind FarmOffshore wind Β· 3.0 GW Β· Scoping
- Marram Wind Offshore Wind FarmOffshore wind Β· 1.0 GW Β· Scoping
- Muir Mhor Offshore Wind FarmOffshore wind Β· 1.0 GW Β· Awaiting Consents
- Broadshore Offshore Wind FarmOffshore wind Β· 900 MW Β· Scoping
- Netherton Hub BessBattery storage Β· 200 MW Β· Scoping
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