5 Countries With the Highest Installed Solar Capacity (No. 2 May Surprise You)

Image source: First Solar.

Solar energy is the fastest-growing new source of energy in the world, and it's still just scratching the surface of its potential. According to the International Energy Agency (IEA), at least 302 GW of solar capacity were in operation at the end of 2016, enough to power 49.5 million U.S. homes. And solar energy still provides less than 2% of the world's electricity needs, meaning there are years, or even decades, of growth ahead. 

The leading solar countries have made a concerted effort to build more renewable energy and include some usual solar powerhouses and some surprising entries. There could even be some new entrants on this list a year from now. For now, here are the top five. 

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Source: Fool.com