The growth of distributed generation and the prospect of greater penetration of demand response and storage resources at the low-voltage level is increasing interest in smart energy districts. Concurrently the prospect of electrification of heating and transport and adoption of CHP plant is increasing district level multi-energy interactions. This seminar will introduce the technical and economic models being developed in the group of Dr Mancarella at the University of Manchester to deliver insights and quantitative results with respect to smart, multi-energy districts. In particular, two district models, a high-resolution physical simulation model and a stochastic optimisation model, will be presented. Work on multi-energy network and aggregation modelling will then be explored, before the economic modelling, which completes the developed techno-economic framework, is presented.