funded by Industry/Ofgem low carbon network Energy demand modelling which allows disaggregation of sectoral demand at DNO/GDN level or below. Construction of databases of two Grid Supply lints (GSP) each with some 100,000 consumers for model input and comparison with half-hourly GSP transformer loads. Future low carbon energy scenarios analysis with changes to demands, because of technology change such as mass installation of heat pumps, electric vehicles, and to supply including solar PV and wind. Assess the implications for need for and investment in transmission, and how operations may have to change to match demands and renewables over short periods of a half hour and provide stable electricity services.