“Energy economy environment models such as TIMES are often used to look at opportunities and costs of reducing greenhouse gases (GHGs). The South African TIMES model (SATIM) has been developed for this purpose and its methodology is documented online. This document presents an overview of the SATIM commercial sector methodology and may be of interest to researchers from countries where the sector is also a relatively small GHG emitter and building survey data is limited, as is the case in South Africa, making a compact modelling approach more appropriate.”