A hotter and drier reality is forcing The City to rethink where to source its water supply.
This solar panel at Hummingbird Farm uses a technology called atmospheric water generation to trap and consense water vapor from the air and convert it to liquid. Through the use of solar photovoltaic power, the vapor is transformed as it passes through a series of fans and water-absorbing materials.
But the program’s existence is a clear sign that San Francisco Public Utilities Commission and other water managers across the state are increasingly aware that conservation alone will not solve the water shortages plaguing the state. In San Francisco, the hydropanels represent just one of many water-saving initiatives that fall under the SFPUC’s Innovations Program. Other projects include wastewater recycling programs, advancements in leak detection tools, and grant programs that encourage local breweries to collect, treat, and reuse process water generated onsite.
“What’s interesting about the solar panels is we’re doing one on the east side of the city and one on the west side of the city,” said Kehoe. “Traditionally, there’s more fog on the west side of the city, but we’re also understanding if this fog or the amount of sunlight matter in terms of the production.”
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