WhalePower, based in Toronto, Ontario, is testing this wind-turbine blade at a wind-testing facility in Prince Edward Island. The bumps, or “tubercles,” on the blade’s leading edge reduce noise, ...

Windmills aren't what they used to be but then neither is the search for renewable energy sources. In an effort to develop renewable energy sources, engineers are looking for ways to build a better ...

With electricity cost going up and the likes of British Gas hiking up their price, everyone could use a bit of free energy. There are a number of ways to harvest renewable energy including solar and ...