The GHG Implications of Completing Site C
One of the more curious aspects of the environmental opposition to Site C is the near complete disregard for the GHG implications of proceeding with the project at this time. As many critics have pointed out, the 5100 GWh of electricity from Site C will be surplus to BC requirements for a number of years after the project is scheduled to come into service. But for as long as Site C supply is surplus to BC requirements it will be sold into Alberta and U.S. markets where it will generally displace the highest cost (least efficient) thermal power production that would otherwise be produced. In so doing it will significantly reduce GHG emissions in those jurisdictions. Displacing 5100 GWh of thermal power production would reduce GHG emissions by some 2.6 to 4.8 million tonnes of CO 2e per year. The benefit, based on an estimated social cost of carbon of $50/tonne, would be $130 to $240 million per year. If Site C were surplus for 10 years, as some have argued, the GHG benefit wou...