wholeSEM bound together the UK modelling community through international annual energy conferences, specialist events and a bilateral Fellowship programme. wholeSEM's policy impact can be seen in the CCC’s 5th carbon budget, and BEIS’ Clean Growth Strategy. And it broke new ground on interdisciplinary energy modelling, addressing the conceptual and practical difficulties of truly cross-disciplinary analysis and insights. As Principal Investigator of wholeSEM, it has been my privilege to work with our four partner universities and with our Advisory Board over the last 4 years.” – Professor Neil Strachan, Principal Investigator, 2018