[RE-wrenches] Grid-tie hydro

[Mark Dickson]

I just spoke with Derek at Hi Power and he insists that his LV1500-120V unit
can run with no load present and not burn out.  He recommends tying it
directly to a PVP inverter with no diversion load-doesn't get much simpler
than that!  That is a system that will produce 650watts continuous for under
$7000.

 

Btw, the customer has the rights to the creek and is ready to go.

 

Thanks Dave and Jeff for the lead!

 

Best regards,

 

Mark Dickson,

NABCEP Certified Solar PV Installer T

Oasis Montana Inc.

 

 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Bruce Geddes
Sent: Thursday, April 22, 2010 2:36 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Grid-tie hydro

 

SMA use the Windyboy with a rectifier/diversion box for this application.

----- Original Message ----- 

From: Mark Dickson <mailto:Mark at OasisMontana.com>  

To: 'RE-wrenches' <mailto:re-wrenches at lists.re-wrenches.org>  

Sent: Friday, April 23, 2010 6:04 AM

Subject: [RE-wrenches] Grid-tie hydro

 

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 T

Oasis Montana Inc.

 

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