The entire country of Costa Rica has been running on completely renewable energy since the beginning of 2015. The country has not used any fossil fuels to generate electricity but has used fossil fuels to power vehicles, etc.

Costa Rica has run its power grid mostly off of hydropower; the technology is efficient for the country due to the heavy rainfall the country receives. Costa Rica has received heavy rainfall at four of the hydroelectric facilities during the first quarter of 2015. Other sources of energy used to power the country include wind, biomass, solar, and geothermal energy.

"The year 2015 has been one of electricity totally friendly to the environment for Costa Rica," the state-owned power supplier Costa Rican Electricity Institute (ICE) said in a press release.

Although Costa Rica is a small nation, less than half the size of Kentucky, and the population is only 4.8 million people, this is still quite an achievement. Will other countries make the move toward completely renewable energy?

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