Canadas hydropower industry has plans to invest up to $70 billion on hydro-electric projects across the country in the next 10 to 15 years, increasing its hydro-electric resources to a truly staggering 88,500 MW. Much of the new clean power is for exporting to the US at least initially. Each terawatt hour of hydro exported to the United States largely replaces fossil fuel generation, says Irving. In Canada, only 19% of power comes from coal, so exporting it to the dirtier US grid will have more effect on global greenhouse gas emissions. Current hydropower exports to the US already reduce continental greenhouse gas emissions by at least half a million tons annually, he says. Canada Boosting Hydro Power to 88.5 GW to Replace US Coal - CleanTechnica An important component to phase out coal and make the US grid greener.