Renewable energy in Canada Renewable energy in Canada The majority of the energy supply in Canada is generated by renewable technologies. The country generates the majority of its electricity from hydroelectric dams (59% in 2006). Wind power is a fast growing sector of the energy market. Globally, Canada was the 6th largest producer of wind power in 2011. Canada has built many photovoltaic power plants, mainly in Ontario, with one in Sarnia being the largest in the world at the time of construction. A 15-megawatt tidal plant sits at Annapolis, Nova Scotia, and uses the daily tides of the Bay of Fundy. Politicians have
Discourse on the Tides Discourse on the Tides "Discourse on the Tides" () is an essay written by Galileo Galilei in 1616 as a letter to Alessandro Orsini that attempted to explain the motion of Earth's tides as a consequence of Earth's rotation and revolution around the sun. The same ideas form an important part of Galileo's "Dialogue Concerning the Two Chief World Systems". Galileo's theory was in fact erroneous, as proven by future scientific research. Galileo composed "Discourse on the Tides" while in Rome and appealing for papal acceptance of the teaching of Copernican theory. The letter is thus not just an explanation