[RE-wrenches] Grid-tie hydro

David Katz dkatz at aeesolar.com
Thu Apr 22 12:01:17 PDT 2010


Derik at HI Power hydro has done several of these with grid tie DC 
voltage with diversion.
You can reach him at derik at asis.com
http://www.hipowerhydro.com/
cheers,
David

David Katz

Chief Technical Officer

AEE Solar

1155 Redway Drive

P.O. Box 339

Redway, CA  95560

Tel (707) 825-1200

Fax (707) 825-1202

dkatz at aeesolar.com <mailto:david at aeesolar.com>

www.aeesolar.com <http://www.aeesolar.com/>

 

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Mark Dickson wrote:
>
> Hello Wrenches,
>
> Got one for you. . .
>
> We have a customer that has great potential for a micro-hydro system 
> and already has the grid on his property.  The obvious way to tie the 
> turbine unit in would be to go back through batteries and a GVFX or 
> XW.  In trying to eliminate the batteries and the inefficiencies I 
> want to look at using a battery-less grid-tie inverter.  I am assuming 
> that I could use a small inverter such as the PVP 1100 and 
> high-voltage Stream Engine.  The problem I am trying to work around is 
> how to divert the ~240DC output of the turbine, if and when the grid 
> goes down.  Would this be as simple a placing a relay on the AC side 
> of the inverter and having it switch on/off a large diversion load?
>
> For the diversion load I was thinking I could just series up a set of 
> water heater elements to get to the necessary voltage.
>
>  
>
> Has anybody accomplished this before?  Jay?  Are there any other 
> elegant solutions for this?
>
>  
>
> Has anybody successfully used a WindyBoy with hydro?
>
>  
>
> Best regards,
>
>  
>
> Mark Dickson,
>
> NABCEP Certified Solar PV Installer ^(TM)
>
> Oasis Montana Inc.
>
>  
>
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