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reduce evaporation and harvest leccy

 
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dpack



Joined: 02 Jul 2005
Posts: 46220
Location: yes
PostPosted: Fri Nov 17, 23 6:36 pm    Post subject: reduce evaporation and harvest leccy Reply with quote
    

good idea to try at scale

if the pv bit works, adding some underwater robot scutters to deal with housekeeping the irrigation canal (flora, twigs, gators etc) tidy would be cute

some of that could be done by tasty fish

Mistress Rose



Joined: 21 Jul 2011
Posts: 15972

PostPosted: Sat Nov 18, 23 8:23 am    Post subject: Reply with quote
    

It depends if the canal has any other uses. In the UK, canals were built more for transport than for water distribution, although some are used for both. Sounds a good idea across Arizona if it is mainly used for water though. We were watching a robot leaf remover yesterday and it works reasonably well. Other water intakes have mesh at the inlet to stop sticks and leaves going in. As you say, for algae and the like, fish would do a good job.

dpack



Joined: 02 Jul 2005
Posts: 46220
Location: yes
PostPosted: Sat Nov 18, 23 4:55 pm    Post subject: Reply with quote
    

this one is for moving water rather than stuff or people

Slim



Joined: 05 Mar 2006
Posts: 6612
Location: New England (In the US of A)
PostPosted: Sun Nov 19, 23 11:23 am    Post subject: Reply with quote
    

It's funny that they're claiming to be the first in the US. But I suppose maybe they mean across the entire length of the canal?

Because of issues seen in India where panels were directly above the water, California is piloting a few different heights, as high as 15 feet above the water: https://www.pbs.org/newshour/economy/solar-panels-built-over-water-canals-seem-like-a-no-brainer-so-why-arent-they-widespread

dpack



Joined: 02 Jul 2005
Posts: 46220
Location: yes
PostPosted: Sun Nov 19, 23 12:40 pm    Post subject: Reply with quote
    

it does seem to make sense to harvest pv over something big that is better with a lid

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