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  • #772671
    Vic
    Participant
      @vic

      Adding Solar makes sense. Might as well use the space.

      https://youtu.be/RGLvxGAE66I?si=V-AZLDi1jIEyMs4A

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      #772764
      noel shelley
      Participant
        @noelshelley55608

        40′ long 24’max wide , 12 bay charging point ! No mention of the the Kw output, it’s a university so it would not take long to work out the use or otherwise. How well does it work at night when I’m not using the car ? I bet there’s a grant involved somewhere. No mention of what it cost either, but it MIGHT save 6 grand a year in electric.

        Do I smell a rat or am I being cynical ? Noel.

        #772795
        Robert Atkinson 2
        Participant
          @robertatkinson2

          Well at approx 100 kWh / sq foot per year for a solar panel in the UK, thats 96,000 kWh per year total or 8000 kWh per bay (960 sq foot of array). Averaged out that is 21.9 kWh per day.

          At 5.5 miles per kWh (Tesla model 3) 22kWh is about 120 miles a day per bay from solar. Not a lot compared to the charging capacity of 264 kWh (1450 miles) per bay at the stated 11kW rate. That is 264 kWh total per day per bay. So 242 from mains and 22 form solar.

          That’s 8.3% solar.

          Assuming of course that there are always cars charging when the solar is producing or there is storage.

           

          #772894
          Fulmen
          Participant
            @fulmen

            The connection between the solar panels and the charging station is fairly incidental, they are both grid connected. It really doesn’t matter much if the cells are over the parking lot or half a mile up the road, but parking lots are often under utilized area in densely populated areas so it can make sense.

            As for solar cells I’m cautiously positive. A quick glance at google tells me the EROI is fairly good, so unless they deplete limited resources I don’t see why we shouldn’t use them. But they cannot be the primary energy source, all grids need reliable sources to provide base load power.

            #772901
            not done it yet
            Participant
              @notdoneityet

              Robert, I think you may be mixing feet with metres?

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