MinnPost:
“Scientists have crunched the numbers and found that if humans deployed floatovoltaics in a fraction of lakes and reservoirs around the world — covering just 10 percent of the surface area of each — the systems could collectively generate four times the amount of power the United Kingdom uses in a year. The effectiveness of so-called FPVs would vary from country to country, but their research found that some could theoretically supply all their electricity this way, including Ethiopia, Rwanda, and Papua New Guinea.”
“The countries around the world that we saw gain the most from these FPVs were these low-latitude, tropical countries that did not have a high energy demand in the first place,” said Iestyn Woolway, an Earth system scientist at Bangor University and lead author of a new paper describing the findings in the journal Nature Water. “It meant that if only a small percentage of their lakes — this 10 percent — was covered by FPVs, it could be enough to fuel the energy demand of the entire country.”