Model formulation with the Waterloo Energy Modelling System (WATEMS)

The Waterloo Energy Modelling System (WATEMS) is a spreadsheet-based tool for the creation and maintenance of mathematical programming models of energy supplies and demands. Unlike the approach of general purpose matrix generators, WATEMS restricts the modeller to network constraints and just a few classes of auxiliary constraints which encourages a visually-oriented, intuitive style of model formulation. We present the forms of constraints, costs and demand functions, and discuss the formulation of energy models within WATEMS.