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  • On grid/grid tied PV design

    Hi all,

    Want to know some inputs if how do you design Grid tied PV system using only Electrical schedule of loads.

    TIA

  • #2
    I use an average of the last years electric bill
    Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

    solar: http://tinyurl.com/LMR-Solar
    gen: http://tinyurl.com/LMR-Lister

    Comment


    • #3
      Thanks Mike.
      But, how about on the houses that has not yer been built?

      Comment


      • #4
        Originally posted by squelch View Post
        Thanks Mike.
        But, how about on the houses that has not yer been built?
        You'll need to estimate the difference (+ or -) between the old portion of the electrical usage that was due to the old building HVAC load and the portion of the electrical usage that will be due to new building HVAC usage and add that difference to the old total electrical usage.

        In short, you'll need to estimate building loads before the new building is erected. While this is not an exact process, you, or an energy auditor, or a designer, or most anyone with a brain can get reasonably close. Find a book on energy conscious home building. This ain't rocket science.

        Comment


        • #5
          Allow provisions for the solar, and build the house. Build lots of energy savings into the house, construction is THE time to do this. Retrofits are always a kludge, patches in walls...

          Or come up with a great plan and hope you guess right. A pro can help here, but he's never lived with you.
          Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
          || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
          || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

          solar: http://tinyurl.com/LMR-Solar
          gen: http://tinyurl.com/LMR-Lister

          Comment

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