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What California is learning from solar panels built over irrigation canals

372 points · 744 comments · Jtsummers

  1. nbf_1995 · · focus · HN ↗
    It seems like it would be more effective to simply put all the solar panels in a field, and construct a cheap shade over the entire canal no? The supports in the picture are massive and don't look cheap. Also I would imagine the solar array uses more copper than a similar capacity array just built in a field. You can't daisy chain multiple miles of solar panels together, so you need an extra power line to run alongside the whole thing.

    Put the solar panels in a field: The solar array uses less copper. The shade supports don't have to hold up solar panels: Shade supports cost less.

    The best reasoning they give is that California has insane permitting requirements, and it takes 1/6 the time to build on developed land compared to undeveloped land.

    1. schnevets · · focus · HN ↗
      Anecdotally speaking, I have heard of a massive California solar farm in an undeveloped area that has serious vandalism problems. Junkies will find ways through the fencing at night, strip copper and other materials from panels, and cause thousands in damages and lost energy just to extract enough scrap for a fix.

      Nothing short of a face-to-face security response will deter these criminals, so there it is a challenging cost-benefit balance. At least panels in parking lots and other developed spaces have the benefit of witnesses. I'm sure a 20 foot climb up a steel beam over running water is a decent deterrent as well.

      1. rottencupcakes · · focus · HN ↗

        [dead]

        1. nitwit005 · · focus · HN ↗
          They have been trying to crack down on the people buying the scrap: <a href="https:&#x2F;&#x2F;calmatters.digitaldemocracy.org&#x2F;bills&#x2F;ca_202520260ab476" rel="nofollow">https:&#x2F;&#x2F;calmatters.digitaldemocracy.org&#x2F;bills&#x2F;ca_202520260ab...
          1. gs17 · · focus · HN ↗
            Meanwhile in Washington:

            &gt; As the 5 p.m. cutoff to pass bills approached Tuesday, Sen. Shelly Short, R-Addy, launched an unusual bid to bog down the Senate process. She demanded Lt. Gov. Denny Heck, a Democrat, to have the chamber’s secretary read all 39 pages of a bill focused on electrical transmission infrastructure. Usually, the clerk reads the first and last line of legislation into the record. Heck agreed.

            &gt; This maneuver killed the transmission bill, as well as several others Senate Democrats were hoping to vote on before the deadline. One of those looked to address surging theft of copper wiring. Senate Bill 6190 would’ve imposed new recordkeeping requirements on scrap metal businesses and made destroying “critical communications infrastructure” a felony.

            Better luck next year, I guess.

            1. Terr_ · · focus · HN ↗
              [delayed]
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