Solar on canals reduces water evaporation by 70% and algae growth by 85%

The Nexus pilot project in California successfully demonstrated that installing solar panels over irrigation canals can reduce water evaporation and algae growth by 85%. This public-private partnership aimed to generate empirical data on the feasibility of deploying PV systems on active irrigation canals, showing potential operational efficiencies in canal management. The project tested various design configurations and highlighted the scalability potential of covering California's extensive canal network, which could save billions of gallons of water annually and improve water quality. This innovative solution has the potential to be a significant climate solution, offering both water conservation and renewable energy benefits.

https://www.pv-magazine.com/2026/05/04/solar-on-canals-reduces-water-evaporation-by-70-and-algae-growth-by-85/