Canwest News Service: In a world of scarce energy resources and global warming, how do you put a value on hydroelectric power? The stuff is renewable, non-polluting and in huge demand in North America as utilities look to decrease their dependence on coal and oil-fired generation. By just about any measure, hydro power is worth gold in today’s markets. Just look at the record annual profit racked up by Hydro-Quebec. The government-owned utility reported net income of $3.1 billion for 2008 on …