The Canadian Press Posted: Mar 22, 2012 2:24 PM ET| Last Updated: Mar 22, 2012 4:34 PM ET

The province will drop the guaranteed rate for small rooftop solar projects from 80.2 cents per kilowatt hour to 54.9 cents, while larger solar installations will get between 34.7 cents and 44.5 cents a kWh.

The amount guaranteed for power from industrial wind turbines will drop from 13.5 cents per kilowatt hour to 11.5 cents, regardless of the size of the wind farm.

Ontario Power Generation, the government-owned utility, is paid 5.6 cents a kWh for nuclear power and between two cents and 3.5 cents per kWh for power from its hydro-electric facilities.

Residential consumers pay between 6.2 cents and 10.8 cents a kWh.

There were thousands of contracts approved during the first two years of the feed-in-tariff program at the higher rates that will last for 20 years.