Integrated Electricity and Gas Systems Modelling: Assessing the Impacts of Electrification of Residential Heating in Victoria

Abstract

Electricity and gas systems are undergoing a fast transition towards low-carbon and more integrated energy systems. One of those pathways is the electrification of residential heating, whose impacts can be better quantified by jointly modeling the two systems. This paper presents a novel integrated electricity and gas transmission system model with high spatiotemporal resolution and realistic system operating constraints. The electricity system model is a unit commitment with a strengthened DC optimal power flow, formulated as a mixed-integer linear program. The gas network model consists of a dynamic gas flow model that captures gas network flexibility, as measured by the linepack. The mode..