Open pit hard rock mining is one of the planet’s most energy intensive activities. The world’s largest mines move 500,000 tons of material every day, and the energy requirement to accomplish this is staggering. In British Columbia, 7 hard-rock mines consume 15% of the Province’s electrical power. Large mines measure their electricity demands in 100s of MW. Over and above electricity consumption, mines depend on vast amounts of diesel fuel. Canadian mines use around 250 million litres of diesel every year. As a whole, the Canadian sector is responsible for emitting 8.5Mt of of CO2 equivalents every year.