Ontario, Canada’s most populous province, will shut down the last of its coal-fired power plants in southern Ontario by the end of 2013, a year ahead of schedule. The early closure of Ontario’s two largest coal-fired electricity plants, Nanticoke and Lambton, comes as a result of the province’s improved, smarter electricity grid, increased efficiency, strong conservation efforts and diversified supply of clean energy.

Since 2003, Ontario has cut its use of coal by nearly 90%. The province will have shut down 17 of 19 coal units by the end of 2013. By the end of 2014, Ontario will be one of the first places in the world to eliminate coal as a source of electricity production. Today, more than 80% of the power generated in Ontario comes from hydroelectric and nuclear power plants.