GC0155: Clarification of Fault Ride Through Technical Requirements

An alternative to GC0151 which addressed the Fault Ride Through (FRT) compliance process and proposed minor improvements to the FRT technical requirements. This alternative was insufficiently scrutinised as part of the GC0151 urgent modification process hence Ofgem, while rejecting it in their decision letter dated 8 November 2021, noted that it had merit and should be brought forward subsequently.