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2 panels for grid tie ?

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  • 2 panels for grid tie ?

    Hey Mike,
    I need some info, and you seem to know what your talking about. hopefully you can help me.
    I am trying to get into solar, I am going to go straight into grid tie stuff. I hooked up my parents with solar on their cabin, with battery backup. It has been fantastic.
    Now I am stepping into something different.
    Question-
    I have 2- 120w Pmax panels that are identical with a 7.12A max. I want to hook to a grid tie unit with possible upgrade or additional panels later on what size inverter should I purchase? I am thinking 600w 10.8 - 30VDC.
    I also have two different panels, I am thinking about hooking to a grid tie inverter. One is a 90w Pmax, 5.55A max, and the other is a 75w Pmax, 4.8A max, that I want to hook up, was thinking about the same inverter, 600w 10.8-30VDC.
    Then, if I understand I can plug them into a power strip and directly into the wall. Does this work?
    I have a 100 amp box with a breaker that I was thinking about wiring into and out of as a way to disconnect if any problems arise.
    Do any of you foresee problems?
    Any help you can give would be appreciated, as I have stated I am new to this whole thing and need the info.
    I really believe in solar wind and alt energy.

  • #2
    Originally posted by dee View Post
    Then, if I understand I can plug them into a power strip and directly into the wall. Does this work? Works great for the crooks selling the plug in grid tie inverter. Not legal to use in the US for one thing. Not UL listed so in the event it causes a fire you get to pay rather than the insurance company

    I really believe in solar wind and alt energy.
    Solar is great - in it's place and commercial wind has applications while residential wind is possible in a few percent of total area of the US. Residential wind you see on the net is generally junk.
    [SIGPIC][/SIGPIC]

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    • #3
      Sadly, this is illegal and unsafe to do. Just like stores can sell glass pipes for smoking crack, it's not legal to do so.

      Plug in grid tie systems can easily overload a circuit and start a fire in your house.
      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

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      • #4
        Originally posted by Mike90250 View Post
        Plug in grid tie systems can easily overload a circuit and start a fire in your house.
        Even if they do not just catch fire on their own, not being approved for safety by any listing agency.
        SunnyBoy 3000 US, 18 BP Solar 175B panels.

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        • #5
          Have to agree.
          The plug in systems are not Safe
          The only way to do this is with a Microinverter system such as Enphase etc that will meet the input voltages of your panels.
          And this cannot be a plug in system but hard wired and approved by the AHJ and utility it will be connected to.
          NABCEP certified Technical Sales Professional

          [URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]

          [URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)

          [URL="http://www.gaisma.com"]www.gaisma.com[/URL]

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