Name: OSeMOSYS (Open Source Modeling System)
Type: ESM
Institution: NA (open source)
Documentation: Documentation/website; GitHub.
Geographic coverage: Single country (global)
Description: A bottom-up energy system model initially developed to assess the costs and benefits of net zero strategies for the energy sector.
Questions to be answered/variables considered: While the model was initially developed for cost-benefit analysis of net zero strategies for the energy sector, it has also been used to assess financial, fiscal, and distributional impacts of road decarbonization in a single framework.
The model projects demand for mobility and freight, typically by 2050, from assumed GDP and population scenarios. Other variables considered include capital costs, maintenance, and fuel expenses, and estimates of the cost to deploy the necessary infrastructure (e.g., bus lanes, charging stations). It also calculates the costs and benefits of choosing a decarbonization scenario instead of a business-as-usual scenario, and the incidence of these costs and benefits on households grouped by income quintile or region of residence as well as the costs for different types of firms.
Strengths: The model is open source and can be applied to different countries.
Assumptions: GDP and population scenarios are exogenous.
Use: The model has been augmented with a tax and distributional impact model by the IDB, to analyze the fiscal and distributional impacts of decarbonizing road transportation and of policies designed to create alternative revenue streams. The model has also been applied to Peru by the World Bank to investigate similar issues.