[RE-wrenches] LAING PV direct pumps

Mon Feb 1 10:47:16 PST 2010

Hello All,

I am looking for 2 - Laing D5 solar 090 pumps [PV direct 12 vdc] with
flanges ants bleeder ports.

Conergy sold out and Innovative Solar who bought the Dankoff line now does
not carry them.

Any suggestions?

Please contact off list if you supply.

Thanks

Dana Orzel

Great Solar Works, Inc

www.solarwork.com

E - dana at solarwork.com

V - 970.626.5253

F - 970.626.4140

C - 970.209.4076

I will be the shift in how the world uses power! - Dana Orzel

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of William
Miller
Sent: Monday, February 01, 2010 11:18 AM
To: RE-wrenches
Cc: RE-wrenches
Subject: Re: [RE-wrenches] Back-up from large grid-tie system.

Kelly:

A big a** generator and a transfer switch.

William Miller

PS:  Seriously, I have seen projects like this and rarely is there a natural
subdivision in the power distribution that allows one to back up a portion
of the loads.  Backing up a huge power demand, which I assume this is, is
best done by rotating machinery.

Wm

At 07:52 AM 2/1/2010, holtek at sbcglobal.net wrote:

Project:
43kw system originally designed as grid-tie. 208 3ph, 6 SB7000(208).
Equipment already rec'd.
The curve ball.....client now wants some back-up capabilities that include
solar......there is a 7.92kw sub-array in the system that may be part of the
solution. Any thoughts?

Holt E. Kelly
Holtek Fireplace & Solar Products
500 Jewell Dr.
Waco TX. 76712
254-751-9111
www.holteksolar.com <http://www.holteksolar.com/> 

----- Original Message ----- From: "Peter Parrish"
<peter.parrish at calsolareng.com>
To: <re-wrenches at re-wrenches.org>
Sent: Sunday, January 31, 2010 5:19 PM
Subject: [RE-wrenches] Couple of Qustions about AGM batteries

We have put together a 850 Wdc portable stand-alone PV system. It uses a
Blue Sky 3024DiL charge controller, a pair of SunXtender 250 A-hr AGM
batteries (24 volt configuration), and a Xantrex Prosine 1000 inverter.

We have been using this system for powering "events" and getting some good
marketing from the activities. Everything has worked out well, and the
system is not being used now and probably won't until March or April
sometime.

We have let the system fully charge the batteries through bulk/absorption
and now float. The float conditions are 26.4 V and 2.0 A at a battery
temperature of 21 deg-C.

My first question: is it alright to let the batteries float every day for
the next 6 to 8 weeks, or should I disconnect them from the rest of the
system until we are ready to use the system again?

My second question: since the 3024iL can perform an equalization, is there a
safe equalization procedure for these AGM batteries?

- Peter

Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
CA Lic. 854779, NABCEP Cert. 031806-26
peter.parrish at calsolareng.com
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885

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Please note new e-mail address and domain:

William Miller 
Miller Solar
Voice :805-438-5600
email: william at millersolar.com
http://millersolar.com <http://millersolar.com/> 
License No. C-10-773985

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