[dillondoyle]

Having PV above water is something we should do immediately.

As this article points out it seems to help with evaporation and evaporation is a big deal [1]

water out here and heading south just sits in concrete canals waiting to be flooded inefficiently onto crop land. but using way better irrigation is another topic.

[1] https://www.circleofblue.org/2013/world/report-evaporation-f...

[prawn]

There was a story on HN the other month about solar panels above irrigation canals in India. Something like this: https://www.bbc.com/future/article/20200803-the-solar-canals...

[dillondoyle]

Love it. I also remember one a long time ago about filling a reservoir with floating balls. But solar does two things at once.