Wind turbines convert wind energy into electricity and they can work side by side with the electric solar panels to create more green electricity.  Wind electricity has the lowest cost amongst the other renewable energy converters in the market, making it to be the fastest growing generator of green electricity in the world. The USA Dept. of Energy expected the wind power’s cost to keep going down and by 2020 wind electricity will become the cheapest electricity, no other energy sources can beat it. » Read more: Wind Electricity