So the NWConnection is not yet a NSIP? They are telling the public it already is, and threatening compulsory purchase on this basis

As advised previously, NSIPs are defined in ss14 through s30A of the Planning Act 2008 (as amended). In the Non-Technical Summary of the Applicant’s Preliminary Environmental Information Report it states: “The connection project is an overhead line with a voltage greater than 132 kV, and is longer than 2km; hence the project is classed as a Nationally Significant Infrastructure Project (NSIP) under the Planning Act 2008.”
The application is therefore being progressed under the Planning Act 2008 and we will check that the application meets the criteria under s14(1)(b) and s16 once it is submitted.