Six countries now generate 70-100 % of their energy from renewables !

A recent study by Stanford University researchers predicted that the world could be powered entirely by renewable energy in just 20 to 40 years from now.

Iceland generates the most clean electricity per person on earth, with 100% of its energy coming from renewable sources.

Costa Rica is among the top renewable energy users, with 99% of its electricity needs coming from hydroelectric, geothermal, and wind. 

Close behind is Norway, with 98% of electricity coming from renewable resources, mostly hydropower.

Thanks to a supportive regulatory environment and a strong partnership between the public and private sector, Uruguay has invested heavily in wind and solar power, without using subsidies or increasing consumer costs. And as a result, it now boasts a national energy supply that’s 95% renewables-powered, achieved in less than 10 years.

Thanks to government investment in wind, solar, and geothermal energy, Nicaragua's aim of being 90% renewables-powered by the year 2020 appears to be an achievable goal.

Kenya has invested heavily in geothermal energy production, which accounted for more than half their energy mix in 2015. They also have Africa’s largest wind farm, providing another 20% of their installed electricity generating capacity.

In 2015, Sweden threw down the gauntlet with an ambitious goal: eliminating fossil fuel usage within its borders. They’ve increased their investment in solar power, wind power, energy storage, smart grids, and clean transport.

Denmark aims to be 100% fossil-fuel-free by 2050 and it plans to use wind power to achieve that goal. They already set a world record in 2014, producing almost 40% of their overall electricity needs from wind power and the latest figures put them firmly on track to meet their first goal of obtaining 50% of their electricity from renewables by the year 2020.

Using a combination of grid-connected wind farms and standalone turbines, the United Kingdom now generates more electricity from wind farms than from coal power plants. 

The United States of America has one of the world’s largest installed solar photo-voltaic capacities and an installed wind energy capacity second only to China. But it is also one of the world’s biggest energy consumers, which tends to cancel out much of its renewable capacity. Nevertheless, if more attention was paid to renewables over fossil fuels, it has been estimated that the U.S. could reduce its emissions by almost 80% in only 15 years, without impacting on consumer electricity costs.

Acknowledgement : The above post has been reworked from information given on this page.