Toronto: Support for renewables came to the fore on the Canadian campaign trail this week.. Conservative Prime Minister Stephen Harper, trying to gain votes in next month's federal election, has pledged a C$4.2bn ($4.36bn) loan guarantee for the enormous Lower Churchill hydro project in Newfoundland.

Thatprompted complaints from Ontario Premier Dalton McGuinty, of the Liberal Party, on the grounds that his province should also receive federal support as it embarks on an C$87bn overhaul of the energy sector, including new nuclear power, transmission and renewables..