Wind Energy: Wind energy systems generate electrical energy by capturing the power using wind turbines or windmills. From eia.doe.gov: Since ancient times, people have harnessed the winds energy. Over 5,000 years ago, the ancient Egyptians used wind to sail ships on the Nile River. Later, people built windmills to grind wheat and other grains. The earliest known windmills … [Read more...] about Eco Tuesday: Wind Energy