UC Santa Cruz researchers published a new study—in collaboration with UC Water and the Sierra Nevada Research Institute at UC Merced—that suggests covering California’s 6,350 km network of public water delivery canals with solar panels could be an economically feasible means of advancing both renewable energy and water conservation.
The concept of “solar canals” has been gaining momentum around the world as climate change increases the risk of drought in many regions. Solar panels can shade canals to help prevent water loss through evaporation, and some types of solar panels also work better over canals, because the cooler environment keeps them from overheating.
Pilot projects in India have demonstrated the technical feasibility of several designs, but none have yet been deployed at scale. California’s canal network is the world’s largest water conveyance system, and the state faces both a drought-prone future and a rapid timeline for transitioning to renewable energy. Solar canals could target both challenges, but making the case for their implementation in California requires first quantifying the potential benefits. So that’s exactly what researchers set out to do in their paper published by Nature Sustainability.
Read more at University of California - Santa Cruz
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