Solar panels on water canals seem like a no-brainer. So why aren't they widespread?

[elektra]

why not just sprinkle the aqueduct, which is what they are called, not canals, with Tinker Bell's Fairy Dust and then use Unicorns to power the cities?

 

[AMart]

Solar panels is like the dark ages

 

[Concerned American]

Of course if we put Nuclear Desalination Plants all around the country, all the sea water coming in converted to fresh could be pumped inland. Also from the generation of electricity, we could split some of the water molecules into hydrogen, and condense it down for hydrogen fuel cells. But alas, Marxists cant have happy people, so they keep all the real technology from being created...

If the coastal areas desalinate, the inland areas won't have a water shortage--another solution--stop watering the desert.