What the NESO Expression of Interest Means for Developers, Contractors, Lenders and OFTOs
We have been tracking the development of the Competitively Appointed Transmission Owners (CATO) framework for some time, from Ofgem's early consultations on development models, to the finalisation of the early competition commercial framework, and most recently the regulatory signal embedded in Ofgem's Draft Determinations of February 2026. The programme has now moved a significant step further. NESO has published its Expression of Interest (EoI) Supporting Information Pack for the CATO Market Sounding exercise, and with a submission deadline approaching, there is now something concrete for market participants to act on.