A feed-in tariff (FIT) is a policy mechanism guaranteeing renewable energy generators a fixed, premium price for electricity they supply to the grid over a long-term contract period. This guaranteed revenue makes renewable energy investments financially viable even when market electricity prices are low. Ontario's FIT program, launched in 2009, was among North America's largest, spurring significant solar and wind development. FIT programs typically offer higher rates for technologies with higher costs (like rooftop solar) and lower rates for more established technologies. Critics argue FIT programs increase electricity costs for consumers, while supporters note they accelerate clean energy deployment and create manufacturing jobs. Ontario's program has since wound down, replaced by competitive procurement approaches. For municipalities, FIT programs enabled renewable energy projects on municipal buildings and lands, generating revenue while demonstrating environmental leadership.