Pretty interesting article. I was surprised at how much oil this will save. If one little Island was using that much oil, imagine how much the rest of the world is using.
With the opening of a new wind farm next month, El Hierro, population just over 10,000, will become the first island in the world to be fully energy self-sufficient through combined wind and water power. The five wind turbines will provide 11.5 megawatts of power, enough to meet the demand of the population and the desalination plants on this small crop of land off the coast of Africa in the Atlantic Ocean.

When the wind isn’t blowing, hydropower will fill the void. When the wind is blowing, power will be used to pump water into a reservoir in a volcanic crater about 2,300 feet above sea level. Then when power is needed, that water will be released down to a lower reservoir and used to generate electricity on the way. This process is known as pump-storage hydroelectricity, and is used in many other countries across the globe — including the world’s largest outside of Washington, D.C.
This Island Is The First In The World To Be Powered Fully By Wind And Water | ThinkProgress