National Grid Shifts to Bay Sharing for Connections up to 450 MW
United Kingdom – October 12, 2026 -- National Grid Electricity Transmission is moving new transmission connection applicants toward shared "bay sharing" arrangements that let multiple customers with requirements of up to 450 MW connect through common facilities. The shift is part of Phase 2 of Connections Reform and aims to use existing assets more efficiently and reduce the need for dedicated infrastructure.
Three shared connection products are now on offer
Grid Parks connect up to three customers through a shared transformer and lower-voltage infrastructure. They suit smaller customers with requirements up to approximately 57 MW and are already used across the transmission network.
Super Grid Parks use higher-voltage infrastructure for larger customers or more customers, with projects of around 150 MW as the target. They are aimed at new substations where future customer growth can be planned.