So far, the deployments of hydro, solar and wind energy in Canada have been made in the highest-yielding locations. It is natural for the low-hanging fruit to be picked first. What is next? Now that Justin Trudeau’s government will ensure a uniform national carbon price, the question is, will it be just about tightening our belts or will it hasten a bountiful supply of renewable energy? This depends on an old puzzle in economics: Future renewable-power installations could either get cheaper, because we have learned from earlier practice and technology development, or they could get more expensive, since the best spots for steady wind, reliable solar and proximity to existing power distribution and population centres are already taken.
To answer this, a student and I mapped each province’s remaining “low-hanging fruit” of renewables in the form of wind, solar, wave, tidal and some biomass energy. We compared this with total energy use, including electricity, transportation, heating and industrial production.
The bottom line: There is plenty of renewable-energy potential near current roads, power lines and population centres. Most of it is wind power, with plenty of hydro and solar as well. In fact, every province except Alberta and Ontario has a large surfeit – enough to be choosy about siting installations to minimize environmental side-effects.
Indeed, the boom and associated savings should be big enough to amply help workers and communities in transition.
For instance, were Newfoundland to develop the easily accessible part of its truly enormous wind resources and to export the power, it would generate an annual income of $200,000 a household.
While carbon pricing helps push this kind of investment, the market costs of building and of running wind and solar power are dropping, on their own, faster than policy is moving. That makes a shift to renewable power inevitable. By 2022, it will simply be cheaper to build and provide a gigawatt of wind power than the cheapest fossil-fuel alternative, and solar will be just behind. Because wind and solar are technologies, not fuels, their costs will continue to drop as time goes on.
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Canada well on its way to a renewable-energy future - The Globe and Mail