Wind energy is becoming increasingly important in Costa Rica, especially in areas like Guanacaste, which experience strong winds year-round. Wind farms, such as the Lake Arenal Wind Farm, use turbines to capture wind energy, converting it into electricity. However, wind power also provides a substantial portion of Costa Rica's renewable energy, comprising 17% of all renewable energy production. Geothermal power plants with a nameplate. For years, Costa Rica has relied on clean energy for up to 99% of its electricity, putting it in the league of innovative countries like Iceland, Norway and New Zealand. What sets Costa Rica apart is that it's a less developed nation with a much smaller economy. In Costa Rica, sustainability is. Name Name Area.