This dataset contains the data tables for the final report of the Cost-Effective Energy Pathways Study for Ontario ("Study"). This report is available in English and posted at: Cost Effective Energy Pathways Study for Ontario The Ministry of Energy and Mines commissioned ESMIA Consultants, working with Dunsky Energy + Climate Advisors, to conduct an independent whole-economy energy modelling study, using an open competitive procurement. The goal of the Study was to analyze how Ontario’s energy sector could be impacted by electrification and changing consumer energy demand. Work on the Study occurred from December 2022 to September 2024. The Study takes a holistic view of Ontario’s economy to assess cost-effective scenarios to meet energy needs across all sectors up to 2050. The Study represents independent advice for the government’s consideration. It may not reflect government perspectives or directions on Ontario's energy transition. The Study does not provide policy advice, reflect regional differences, or fully capture the energy system's technical, behavioural, or market complexities. See the final report for details on the modelling approach and some of the associated key considerations and caveats.