Long popular in Asia, floating solar catches on in US
A lesser-known form of solar power that has several advantages over the traditional kind is gaining traction
When Joe Seaman, the city planner for the working class town of Cohoes, New York, Googled the term “floating solar,” he didn’t even know it was a thing. What he did know is that his tiny town needed an affordable way to get electricity and had no extra land. But looking at a map, one feature stood out, he said. “We have this 14-acre water reservoir.”
Seaman soon found the reservoir could hold enough solar panels to power all the municipal buildings and streetlights, saving the city more than $500,000 each year. He had stumbled upon a form of clean energy that is steeply ramping up. Floating solar panel systems are beginning to boom in the United States after rapid growth in Asia. They're attractive not just for their clean power and lack of a land footprint, but because they also conserve water by preventing evaporation.
A study published in the journal Nature Sustainability in March found that thousands of cities -- more than 6,000 in 124 countries -- could generate an amount equal to all their electricity demand using floating solar, making it a climate solution to be taken seriously. In the process, they could save roughly enough water each year to fill 40 million Olympic-sized swimming pools.
Zhenzhong Zeng, a contributor on that study and associate professor at the Southern University of Science and Technology in Shenzhen, China, said in the United States, counties across Florida, Nevada, and California have the potential to generate more power than they use. Of course, they would need a mix of energy to actually provide power all hours of the day, Zeng said.
