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  • 3ph windmill

    Having a hard time finding the proper 1ph 240v grid tie inverter for my windmill project.. 1 have a 3ph ac 8000w head can be full bridge rectified over to DC or leave it 3ph AC .. SMA had a windy boy but I believe they discontinued those .. now who makes what I need? anyone know? I talked with Fronius but they said they don't make a grid tie inverter specifically for use with a windmill .. frustrated .. Id rather have 1 inverter an not have to stack 6-8 of them

  • #2
    Originally posted by uponahill View Post
    Having a hard time finding the proper 1ph 240v grid tie inverter for my windmill project.. 1 have a 3ph ac 8000w head can be full bridge rectified over to DC or leave it 3ph AC .. SMA had a windy boy but I believe they discontinued those .. now who makes what I need? anyone know? I talked with Fronius but they said they don't make a grid tie inverter specifically for use with a windmill .. frustrated .. Id rather have 1 inverter an not have to stack 6-8 of them
    The nice thing about stackable circuits such as these converters or
    inverters is that each circuit has a small cable that connects one to
    the other to synchronize them as one unit. Also when 4 units are
    being used and not enough wind is able to power the 5th, 6th, 7th........
    and so on they shut off and you save on idling.

    One large unit may not be nearly as energy conservative. Say each
    circuit costs you $100 each and 1 burns out, then you replace it and
    you are back in business, but if you run a single 10,000 watt unit it may
    cost much more when it goes out.

    Robot formed assembly line circuits may not always work long

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    • #3
      Id just rather have 1 inverter, reason, my windmill gen head project will not require wind it will be mechanically spun so it will turn at just under full rpm if I do have to go a stackable route they have to be CE and EEEE certified said the power company but which ones will work? Fronius has a 3ph to 240v model if I do decide to go the stack route which brand is best? any ideas

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      • #4
        1 burns out but I'm still going seems to have more logic though... pondering that

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        • #5
          OK Bro! good call I found some 1000w-2000w there at least 92% efficient at just over $100 that's like $3000-$4000 (some single ones near 10k crazy) cheaper than the other way and like you said 1 go's out I still have some power going out till that 1 is replaced plus I can upgrade more easily .. sent message about stacking and how many also if there CE and or EEEE certified .. and I also found out what the main difference between a solar inverter and a windmill inverter is so simple I didn't see it... dump load when power is down solar inverter draws power from the panels where windmills deliver power so I was just told .. old but not to old to learn I guess Thanks for your advise!

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          • #6
            Glad to here it. Take a picture when you get them stacked up.

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            • #7
              Originally posted by uponahill View Post
              OK Bro! good call I found some 1000w-2000w there at least 92% efficient at just over $100 that's like $3000-$4000 (some single ones near 10k crazy) cheaper than the other way and like you said 1 go's out I still have some power going out till that 1 is replaced plus I can upgrade more easily .. sent message about stacking and how many also if there CE and or EEEE certified .. and I also found out what the main difference between a solar inverter and a windmill inverter is so simple I didn't see it... dump load when power is down solar inverter draws power from the panels where windmills deliver power so I was just told .. old but not to old to learn I guess Thanks for your advise!
              Greetings:

              Take a look at these and see what you think.

              https://www.powerjackpowerinverter.com/

              I have a 24vdc, 8kw one, but haven't tested it thoroughly. 5kw out of the thing is ok with me.

              There's a guy on YouTube who has done some stuff with them. His testing and tweaking helped me decide to take a chance and buy one.

              https://www.youtube.com/user/GPVlog/videos

              I would like to get that 15kw inverter, but will probably just get another 8kw jobber.

              Good luck, and be very careful before deciding to buy one of these things.

              gl

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              • #8
                Originally posted by GlenWV View Post
                Greetings:

                Take a look at these and see what you think.

                https://www.powerjackpowerinverter.com/

                I have a 24vdc, 8kw one, but haven't tested it thoroughly. 5kw out of the thing is ok with me.

                There's a guy on YouTube who has done some stuff with them. His testing and tweaking helped me decide to take a chance and buy one.

                https://www.youtube.com/user/GPVlog/videos

                I would like to get that 15kw inverter, but will probably just get another 8kw jobber.

                Good luck, and be very careful before deciding to buy one of these things.

                gl
                Thanks GlenWV,
                Greetings!
                I will take a look at those links I did find a few (2 types) of grid tie inverters 2000w tops but they'll work stacked .. haven't decided which way I'll go yet still in the IDK phase still fine tuning the mechanical part no wind for my wind mill head going another 24/7 route

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                • #9
                  Originally posted by BroMikey View Post
                  Glad to here it. Take a picture when you get them stacked up.

                  will do as I have time it all comes together who knows when it will be complete

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