MX 60 for wind [RE-wrenches]

[Christopher Freitas --- OutBack Power]

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Geoff at Third-Sun.com wrote:
>"Seeing this marriage work would be a good thing I think...  One of the 
>tricks will be to get the window wide enough... the Bergey in low winds 
>puts out voltage way below nominal 24VDC... that is their "slow boost" 
>circuit...  Can MPPT work two ways?  I've always just paid attention to 
>it's step down ability.  It would be great to have an option to use 
>Bergeys in a 48 v nominal system."

Yes - MPPTs technically can work both ways (bucking down or boosting up) 
- although it makes protecting them from incorrect installs a real 
nightmare.  The low power boost system used in the Bergey is a nice idea 
- but it can be eliminated when using a "WX60" as the nominal output 
voltage of the turbine will be moved up to 100 vdc or so - ensuring that 
the turbine's voltage output will exceed the battery voltage under low 
wind conditions (except maybe for 48 vdc systems with low winds...).  

Although this is an exciting area of product development, we only have 
limited engineering resources available to apply to it at the moment.  
Our first priority is to keep our resources focused on increasing 
production quantity, improving product quality and providing good 
customer service.  Adding more product versions and applications while 
growing quickly can really overload a company - we have to keep some 
time for having fun...  

Christopher Freitas
OutBack Power Systems, Inc.
cfreitas @ outbackpower.com  
www.outbackpower.com
Arlington WA USA
Tel 360 435 6030  

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