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Thread: Missouri Wind and Solar Turbine, anyone try them?

  1. #21

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    I have a car alternator wind turbine. It was advertised as a 800 Watt unit and does about 260 Watts @ 30 mph wind.


    I have a Windtura 500 wind turbine that I purchased after I got screwed on a car alternator wind turbine. It does about 630 Watts @ 30 mph wind.

    http://www.windynation.com/web/windt...nd-turbine-kit

    I have a 24V battery system.

    My opinion: DO NOT BUY A CAR ALTERNATOR WIND TURBINE.

  2. #22
    Join Date
    Nov 2010
    Location
    North east Ohio
    Posts
    74

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    Car Alternator Wind turbine:
    1) What was the rotor diameter ?
    2) At what wind speed (mph) was it rated at 800 Watts ?

    Windtura 500 wind turbine:
    1) What is the rotor diameter ?
    2) At what wind speed (mph) was it rated at 500 Watts ?

  3. #23

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    missouri wind and solar car alternator wind turbine:

    they rate it at 800 W @ 27 mph (I see around 200 W)

    It has a approximate blade diameter of 60".


    windtura 500

    they rate it at 500 W @ 25 mph (I see around 500 W)

    I think it has a blade diameter of about 80".

  4. #24

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    From what I've seen, the WindyNation wind turbines are one of the few that are rated honestly. If I was looking to buy a smaller turbine, I'd consider one of them (or one of the smaller WindMax HY turbines). My HY-2000 has been great and was conservatively rated. It makes more power than they stated. Now, that is really impressive - especially considering it came from China! Based on my experience, the HY Energy company appears to be one of the better affordable wind turbine companies out there - regardless of country of origin.

    Edward
    On-grid with RE backup power. HY-2000 2kW wind turbine charging 48V 600Ah Concorde Lifeline battery bank. Wind power diversion heats water in an auxilliary 80 gal hot water heater. 2.1kW Evergreen solar panels & TS-MPPT-45. XW6048 inverter, Onan 6kW 6DJE diesel generator, and Yanmar YDG3700 diesel gen as backup.

  5. #25
    Join Date
    Nov 2010
    Location
    North east Ohio
    Posts
    74

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    Quote Originally Posted by NewYorkMan View Post
    missouri wind and solar car alternator wind turbine:

    they rate it at 800 W @ 27 mph (I see around 200 W)

    It has a approximate blade diameter of 60".


    windtura 500

    they rate it at 500 W @ 25 mph (I see around 500 W)

    I think it has a blade diameter of about 80".
    That rating from Missouri Wind and Solar is way too high ...
    A 5' Rotor in a 27mph wind typically produces about 400 Watts (+/-).
    How can MWAS have a Wind Turbine that is 100% better than most real-world results?
    Really?

    The Windtura 500 is very realistically rated ...
    A 7' Rotor in 25 mph wind should produce 555 Watts (+/-)
    Windy Nation is being very honest.


    MWAS has a graph on youtube that states their 5' Rotor can make 100 Watts in 10 mph winds.
    But yet they show a live video of their Turbine in a 10 mph breeze ...
    The real world results are: 14.1 volts and 1.2 amps at 10 mph.
    Real World results = 17 Watts
    Marketing Hype = 100 Watts (off by a factor of 5!!!)
    Just using the info provided by MWAS proves they are not very honest.

    Also, the "Standard" Wind Speed used for Power Ratings is 11m/s or 24.5 MPH.
    If the Turbine's Power Output is measured at a higher wind speed (like 27mph) then they are fudging their results even more.
    It is hard to compare two Wind Turbines (apples-to-apples) when one manfacture uses 27MPH and another uses 25mph because the power output increases tremendously (by the CUBE!) as the wind speed increases.
    Last edited by NEOH; March 22nd, 2011 at 7:47 PDT.

  6. #26
    Join Date
    Dec 2010
    Location
    Woburn, MA
    Posts
    463

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    Quote Originally Posted by NewYorkMan View Post
    missouri wind and solar car alternator wind turbine:

    they rate it at 800 W @ 27 mph (I see around 200 W)

    It has a approximate blade diameter of 60".


    windtura 500

    they rate it at 500 W @ 25 mph (I see around 500 W)

    I think it has a blade diameter of about 80".
    800 and you get 200 ? 25% of their rated power? Sounds like you got taken for a ride..

    Josey Wales: Well, Mr. Carpetbagger. We got somethin' in this territory called the Missouri boat ride.
    [shoots the rope hauling the ferry across the river]

  7. #27
    Join Date
    Mar 2006
    Location
    SF Bay Area (California)
    Posts
    19,689

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    Easy folks... Inaccurately quoting Sgt. Friday; "...just the facts Ma'am".

    I have no other information other than what is posted here and data-sheets/reviews/etc.

    It would be difficult if I or the other Moderators had to edit for opinions when none of us are first party to any of these issues.

    Take care,
    -Bill
    20x BP 4175B panels (replacement) + Xantrex GT 3.3 inverter for 3kW Grid Tied system + Honda eu2000i Inverter/Generator for emergency backup.

  8. #28
    Join Date
    Dec 2010
    Location
    Woburn, MA
    Posts
    463

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    If you watched the video,

    http://www.youtube.com/user/Fearless.../4/Kw9DBQkxOLU
    "Missouri Wind Turbine Generator - REALITY CHECK"


    You might come to the same conclusion as I did.
    The science (the facts) has been presented in a clear manner.

    Either their turbines are magic, or they fudged the numbers.
    What do you think is going on?

  9. #29
    Join Date
    Mar 2006
    Location
    SF Bay Area (California)
    Posts
    19,689

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    Oh, I do agree that the specifications are several times larger than the output from a real turbine/installation.

    The situation between the various folks involved appears to be getting ugly and I don't want our friendly forum to be pulled in.

    -Bill
    20x BP 4175B panels (replacement) + Xantrex GT 3.3 inverter for 3kW Grid Tied system + Honda eu2000i Inverter/Generator for emergency backup.

  10. #30
    Join Date
    Oct 2010
    Location
    High Semi Desert Mesa, Southwest US
    Posts
    156

    Default Re: Missouri Wind and Solar Turbine, anyone try them?

    Just to give some historical perspective on PMA turbines and exaggerated specs, here is a listing from a 1992 catalog for a very early SW windpower turbine called Neo and later renamed Windseeker:




    I bought the dealer demo turbine the following year and the turbine was honestly sold to me as a 250 watt turbine, not 500 watts as listed in his catalog. PMA modified car alternator turbines are nothing new, nor are exaggerated specs for them. One thing I will point out is the furling system on the Windseeker. There isn't any furling or high wind speed protection on any of the MWAS tubines which should be one of the things to look at when shopping for a turbine and something that indicates the manufacturer is serious about his product. Power output is one thing but a turbine is a mechanical device that can be dangerous if poorly made. You don't want to have the blades fly off because there is no over speed control on your turbine.
    Off grid with 400 watts of solar and a 400 watt wind generator on a 45' freestanding tower. 12 volt system with 3 charge and 1 load controllers--2 for the sun, 1 for the wind and load control for the fridge. 2 inverters, 600 watt pure sine and 1800 watt modified sine and and around 350 watt hours of batteries.

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