Costa Rica’s electrical grid ran on 100 percent renewable energy between June 17 and September 2, according to a report published Tuesday by the state-owned energy company, Instituto Costarricense de Electricidad (ICE), which controls energy production and distribution. (Data after September 2 has not yet been released.)

“We are a small country with large goals!” ICE wrote on Facebook, alongside a video about Costa Rica’s plans to become “the first carbon-neutral country” by 2021.

The small central American nation has relied solely on renewable energy sources for a total of 150 days so far this year, and aims to eventually use 100 percent renewable energy sources at all times.

However, a full 80 percent of Costa Rica’s renewable energy generation comes from hydropower, which is certainly “not without its faults,” as Ecowatch observes:

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