CUSC Panel fast-tracks a one-off contract change window before CMP434
Serguey Asael Shinder2 min readGreat Britain's connection reform has a sequencing problem, and a special meeting of the CUSC Panel on 18 September dealt with one piece of it. The panel considered CMP471, a proposed change to the Connection and Use of System Code that would let users adjust elements of their existing NESO contracts before the first gated application window opens under CMP434.
According to NESO's headline report, the change is meant to be temporary and limited in scope. The panel agreed unanimously that the workgroup had met its terms of reference and sent CMP471 to Code Administrator Consultation. That consultation was published on 18 September and closed on 25 September - a single week, which is short for a code change and signals how tightly it is tied to the timetable of the gated window.
The same meeting worked through the prioritisation stack. Of the ten modifications discussed, one moved: CMP402 goes to high priority because it is explicitly referenced in the Strategic Direction Statement and closely aligned with its priorities. The others stay at standard priority, several of them explicitly waiting on something else - CMP419 and CMP426 on clarity about the Regional Network Plans, CMP288 on whether its defect still exists after connections reform, and CMP305 on a review of how the SDS treats reactive power. CMP341 was noted as a possible candidate for withdrawal.
The next dates in the calendar are a special panel on 2 October, with papers on 30 September, and the Transmission Charging Methodologies Forum on 8 October.
What it means
A gated application window only works if the queue entering it is accurate. Projects that hold contracts signed under the old first-come arrangements may want to change capacity, technology or dates before they are assessed, and without an interim route those changes would either be locked out or would have to wait until after the window, when they could no longer shape the assessment. CMP471 is plumbing, but it is the plumbing that decides what the first window actually evaluates.
The prioritisation list is the other signal. Much of the code backlog is now parked behind the network plans and the SDS rather than debated on its own merits, which means the speed of those strategic documents sets the speed of a good part of the rule-book.