Floating photovoltaic systems – known as floatovoltaics – are becoming increasingly popular. These are arrays of solar panels installed over artificial water bodies such as irrigation ponds, wastewater treatment plants, and reservoirs. These projects maximize the space for producing clean energy while not taking up natural lands.
Wherever there are bodies of water, there are waterbirds. A recent study by researchers at the University of California, Davis looked at the potential impact of floating solar projects on birds and other wildlife.
Birds face many threats from habitat loss, climate change, pollution, and disease. Many bird populations are in decline. So, it is important to consider the effects of floating solar projects on birds.
The researchers have observed birds resting on floating solar structures before dawn, birds jockeying for favorable sites on the structures, and some nesting under the panels. These are positive interactions. On the other hand, it is possible that pollutants could be released or leached from floating solar infrastructure. Such risks must be mitigated.
Floating solar on irrigation ponds and reservoirs can reduce evaporation and reduce algae growth, which benefits both humans and wildlife.
The researchers will continue to monitor bird behavior at floating solar installations using expertise in ecology and energy system science to identify risks and solution pathways so that negative impacts are avoided, and potential ecological benefits are realized. It is important that as floating solar continues to become more popular, it and waterbirds can coexist.
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Helping Birds and Floating Solar Energy Coexist
Photo, posted February 28, 2019, courtesy of Renee Grayson via Flickr.
Earth Wise is a production of WAMC Northeast Public Radio
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