12vdc motor / 5,000 watt generator - ideas?

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  • ILFE
    Solar Fanatic
    • Sep 2011
    • 236
    #1

    12vdc motor / 5,000 watt generator - ideas?

    I have a 1/2 horsepower, 12vdc motor, and an 5,000 watt generator, Italian made, that I had forgotten about.

    generator_02.jpg

    The motor is rated at the following:

    RPM: 1800
    Duty: Continuous
    Voltage: 12vdc - 36vdc
    Amperes: 40
    HP: 1/2

    12vdc_motor.jpg

    My question of you experienced folks is, do you think it would be a reasonable idea to connect this up to a solar array and battery bank, that could provide enough constant energy to run this? Even if only running it for up to eight hours, while suffering a blackout, would be nice. Of course, running 24 hours would be even better. It certainly wouldn't be very loud.

    Ideas? Input?
    Paul
    Tags: None
    • Sunking
      Solar Fanatic
      • Feb 2010
      • 23301
      #2
      How much money is in your bank account to poor into a money pit?

      To run that motor just 8 hours per day is 4 Kwh, or 12 Kwh for 24 hours.

      At 8 hours depending on your location will cost you about $12K to $20K. Triple that for 24 hours. The fun part and money pit is $3000 of that is in batteries you get to replace every 4 to 5 years.
      MSEE, PE

        Comment

        • ILFE
          Solar Fanatic
          • Sep 2011
          • 236
          #3
          Originally posted by Sunking
          How much money is in your bank account to poor into a money pit?

          To run that motor just 8 hours per day is 4 Kwh, or 12 Kwh for 24 hours.

          At 8 hours depending on your location will cost you about $12K to $20K. Triple that for 24 hours. The fun part and money pit is $3000 of that is in batteries you get to replace every 4 to 5 years.
          Thanks. I guess the guy who owned this before me didn't realize what sort of output he would have to have, in order to run this motor under a load. The idea sounded good at the time.
          Paul

            Comment

            • Mike90250
              Moderator
              • May 2009
              • 16020
              #4
              Are you asking if the solar can run the motor, to spin the generator ?

              Just have the solar charge batteries to power an inverter in a blackout.
              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

                • ILFE
                  Solar Fanatic
                  • Sep 2011
                  • 236
                  #5
                  Originally posted by Mike90250
                  Are you asking if the solar can run the motor, to spin the generator ?

                  Just have the solar charge batteries to power an inverter in a blackout.

                  Hi Mike,

                  No, I knew the batteries would run the motor. I just didn't know for how long they would, under a load. It just hit me that I had those parts, as well as others, here at my home. I am getting old, I suppose.

                  My initial plan is still in the works, with batteries running an inverter.
                  Paul

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