Measuring Efficiency. We can find out which one of these renewable energy sources is the most efficient by calculating the costs of the fuel, the production, and the environmental damages. Wind comes out on top by a wide margin over all the other sources. It is followed in order by geothermal, hydro, nuclear and solar. read more
The most effective renewable energy sources are: Wind: Wind power is used to generate electricity. Solar: It is one of the most popular, and fast growing source of alternative energy. read more
The Wall Street Journal put this question to The Experts, an exclusive group of industry and thought leaders who engage in in-depth online discussions of topics from the print Report. read more