CIBSE JOURNAL April 2023 www.cibsejournal.com GREENING THE VALLEYS MODELLING SYSTEMS FOR ALL-ELECTRIC HOMES SCALING BARRIERS TO HEAT PUMPS IN CENTRAL LONDON DEBATING DECARBONISATION AT FUTUREBUILD Ed Fa uc Sp cil ati ec itie on ia s l How the Welsh School of Architectures housing retrofits are inspiring others to aim for net zero