In 2016, Costa Rica relied on renewable sources for 98.12% of its electricity, an impressive achievement and consistent with the 2015 total of 98.99%. Costa Rica further reported that in 2016 it went 250 days using only renewable power sources. With the ability to maintain high levels of renewable electricity for two years, Costa Rica's electricity sector is a world leader in clean energy.
It should be noted, however, that Costa Rica's Reventazon Hydroelectric Project, the largest hydroelectric dam in Central America, has generated concerns due to its environmental impacts on river ecosystems and migrating wildlife, including jaguars. Accordingly, it is to be hoped that Costa Rica continues to invest in non-hydro sources of clean energy, such as wind and solar, which also offer the benefit of operating during the dry season, when hydroelectric production is less reliable.