[RE-wrenches] Solar/Batt Well Pump Recommendation Request

[Mark Dickson]

A Lorentz PS200/HR04 pump can run directly from his 24V battery bank at ~1.2
gpm.  Much more efficient than inverting and stepping up AC.

 

Best regards,

 

Mark Dickson,

NABCEP Certified Solar PV Installer T

Oasis Montana Inc.

877-627-4768 toll-free

406-777-4309 (0830 fax)

 

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

 

 <http://www.grid-tie.com/> http://www.grid-tie.com/

 

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

 

 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jason
Szumlanski
Sent: Tuesday, November 02, 2010 1:43 PM
To: RE-wrenches
Subject: [RE-wrenches] Solar/Batt Well Pump Recommendation Request

 

I have a customer with an existing grid-tied PV system with battery backup
(24Vdc). The inverter feeds a (120V only) critical load subpanel. He has a
240V well pump with 85' total lift and a 4" well. Originally he came to me
looking for a PV direct solar well pump. Immediately I thought about just
using a step-up transformer to handle the 240V well pump on his existing
system, saving a lot of cost (he does not need additional PV to handle the
pump load and the inverter is capable of running the pump). Now I think the
better solution is to get him a DC well pump to run directly off his
existing battery bank. I would just need to add a LVD. If he wants to add
more solar, we can tackle that separately. 

 

Any thoughts on my approach, and anyone with a recommended pump model off
the top of their head?

 

Jason Szumlanski

Fafco Solar

 

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