According to the Costa Rican Electricity Institute, the country has been running on nothing but renewable energy since December, 2014.
For an area as large as Costa Rice to run on nothing but renewable energy is truly remarkable; however, Costa Rica is a small country.
Costa Rica has received massive amounts of rainfall recently. The hydroelectric plants in the country have taken advantage of these downpours.
The government agency states that no fossil fuels have been used for generate electricity for the past 75 days!