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A global study of freshwater coverage by floating photovoltaics

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Article number112244
<mark>Journal publication date</mark>1/01/2024
<mark>Journal</mark>Solar Energy
Volume267
Publication StatusPublished
Early online date13/12/23
<mark>Original language</mark>English

Abstract

Floating Photovoltaic (FPV) deployments are accelerating worldwide and FPV coverage on water surface can strongly influence their ecological impacts. Yet, a global assessment of their characteristics is still lacking. We identified 643 FPV power plants constructed across the globe. We found that FPV power plants currently exist in 28 countries, predominantly concentrated in Asia. FPV coverage was highly variable between lakes, ranging from 0.004 % to 89.9 % of lake surface area. Overall, FPV coverage averaged 34.2 % (±22 SD, n = 494), varying significantly across continents. FPV coverage was significantly driven by lake size and morphological complexity, with smaller lakes and lakes with simplified morphology having higher FPV coverage. The high variability in FPV coverage worldwide suggests a high context-dependency of their ecological impacts that will likely be stronger in small lakes with higher FPV coverage.