Gate 2 in the transmission queue

NESO added a Gate column to the TEC register in November 2025; the first register we hold with it is that of 21 November 2025. We count each stage’s MW still to connect under its own gate, a blank gate as not stated, and take the last register of each month, and the latest register for this month. A project has a Gate 2 offer once any of its stages is marked Gate 2. The date we give is the first register that marks it; the register doesn’t say when the Gate 2 offer was made, or whether it has been signed.

Shares are of the MW still to connect, each stage under its own gate, status and transmission owner; an increase at an existing station is MW still to connect at a project already built. Pick a technology and a connection year to count the projects with MW still to connect whose next connection date falls in that year. A project has a Gate 2 offer when any of its stages still to connect is marked Gate 2, and then all the MW it still has to connect counts.

We compare each project’s next connection date in the register that first marks any of its stages Gate 2 with its connection date in the last register before that one that listed the project, in whole months. A move of less than half a month counts as kept. A project first listed with its Gate 2 offer, or with no connection date on one side, has nothing to compare.

Of the 15 marked Gate 2 that have no Gate 2 MW still to connect today, 9 have since connected the stages with the Gate 2 offer: 8 all their MW, and WELBAR ENERGY STORAGE all but 50 MW whose gate is not stated. 2 had the mark only on a stage already connected: Thornton Facility, whose 830 MW still to connect has no gate stated and whose mark the register has since taken away; and Pencloe Windfarm, whose 34 MW still to connect is at Gate 1. 4 had no MW still to connect when marked: Wilton Lion BESS and North Kyle New Cumnock had connected all theirs, and Ayrshire Grid Services Facility and Cilfynydd Grid Stability Services have no MW in the register. The 2 with no connection date on one side are Wilton Lion BESS, whose Gate 2 offer came on a stage the register already showed connected, and North Kyle New Cumnock, with no connection date before its Gate 2 offer or with it.

A project has left when it drops out of NESO’s register for good, dated to the first register it is missing from, as on Delays and exits; one missing from the latest registers could still come back. Only projects with MW still to connect count, each with its gate in the last register that listed it.