I thought that Canada was one of the few countries with significant untapped hydroelectric potential to be developed. This 2023 report says The updated estima

I thought that Canada was one of the few countries with significant untapped hydroelectric potential to be developed. This 2023 report says The updated estimate for hydroelectric potential in northern Ontario is 3,000 - 4,000 MW. Up to an additional 1,000 MW of potential in southern Ontario was not assessed, nor was the incremental potential associated with existing hydroelectric stations, water management infrastructure or pumped storage. All of these resources remain available to expand the system as electrification creates need. https://www.opg.com/wp-content/uploads/2023/02/Northern-Hydro-Opportunities-Report.2022_FINAL-ua.pdf https://www.opg.com/wp-content/uploads/2023/02/Northern-Hydr...