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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'>Ditto on the AC option. Most of the “battery based” PV systems I have seen outside the US are completely lacking for maintenance esp. the battery bank. Most folks are not aware of or have available distilled H20. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'>I saw a village PV – telephone system in Fiji that “the batteries only work after the sun comes out” , no water in the battery bank to be seen and no-one in the village had heard of distilled H2O. The installer from the phone company sad to “use fresh water [well], not salt-water in the bank”.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'>So maybe sealed batteries? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'>Higher initial cost and shorter life-span than wet LA batteries but lots less no maintenance issues. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'>Are in-country sealed batteries available?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>Dana Orzel<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>Great Solar Works, Inc<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>E - dana@solarwork.com<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>V - 970.626.5253<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>F - 970.626.4140<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>C - 970.209.4076<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>web - www.solarwork.com<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>"Responsible Technologies for Responsible People since 1988"</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif"'>Do not ever believe anything, but seriously trust through action.<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Warren Lauzon<br><b>Sent:</b> Thursday, February 10, 2011 8:17 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] PV water pumping<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><div><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'>The SQ-Flex can run directly from a high voltage battery/PV system, but with a battery based system at over 60 volts or so, you have a lot of problems finding a good charge controller.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'>So, even with the associated losses you are going to get with an inverter system, that is probably the only good option.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'>But I would also advise that systems such as that, especially those involving a large battery capacity, are very highly subject to failure through mis-operation, poor maintenance, and outright theft in many 3rd world countries, so if you end up designing the system keep that in mind.<o:p></o:p></span></p></div><div><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> <o:p></o:p></span></p></div><div><div><p class=MsoNormal style='margin-left:.5in;background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> <a href="mailto:solarphil@gmail.com" title="solarphil@gmail.com">Phil Undercuffler</a> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in;background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>Sent:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> Thursday, February 10, 2011 6:59 AM<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in;background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>To:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> <a href="mailto:re-wrenches@lists.re-wrenches.org" title="re-wrenches@lists.re-wrenches.org">RE-wrenches</a> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in;background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>Subject:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> Re: [RE-wrenches] PV water pumping<o:p></o:p></span></p></div></div></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'> <o:p></o:p></span></p></div></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Tom,</span><span style='font-family:"Calibri","sans-serif";color:black'> <o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>It can be done, depending upon how deep the static water level is and what additional lift or pressurization needs to be overcome. </span><span style='font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>The SQ-Flex will run at highest capacity off an AC source, so I'd consider using an inverter system and grid power, with additional solar designed to supplement the grid. </span><span class=apple-style-span><span style='font-family:"Arial","sans-serif";color:black'>You can run the SQ-Flex off a 120v source, so a single inverter works fine. I run my Flex off my FX2024 along with all my regular household loads, no problems.</span></span><span style='font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Size the array to cover the load through the longest expected grid outage (minimum) or you can size the solar to provide the majority of the power, and use the grid as "bonus" energy or to cover up for sizing shortages or the inevitable load creep. </span><span style='font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'>Phil Undercuffler <o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'>"imagine if..."<br> <o:p></o:p></span></p><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div></div></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'><br><br><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'>On Thu, Feb 10, 2011 at 5:29 AM, Tom DeBates <<a href="mailto:habitek83@yahoo.com">habitek83@yahoo.com</a>> wrote:<o:p></o:p></span></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=624 style='width:6.5in;margin-left:.5in'><tr><td valign=top style='padding:0in 0in 0in 0in'><p class=MsoNormal><span style='color:black'>hello Wrenches,<br> I have an organization in Haiti that I have assisted with PV projects in the past. They drill public wells and have a well (4" casing) that they would like to pump with PV. Problem (one) is that well will draw at ~ 20 gpm and they want ~ 25,000 gpd from the well. I have tried to look at every option I can and it looks like a battery bank will be necessary and an inverter ( 48 volt battery bank) to pump at the rate required. OOPPs, forgot they want to use a Grundfos SQ Flex pump, 16-SQF-10. The gird is "present".....very erratic and stressed, of course. They really would not like to stress gird further and do not want to add a generator. Yep, they made this easy. There are more details, but has anyone designed a PV water pumping system under these constraints and, if so, what have been your results?<br>thanks,<br>tom<br><br>Tom DeBates<br>Habi-Tek<br>524 Summit St.<br>Geneva,IL. 60134<br>630-262-8193<br>fax 630-262-1343<o:p></o:p></span></p></td></tr></table><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'><br><br>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Options & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a><br><br>Check out participant bios:<br><a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><br><br><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'> <o:p></o:p></span></p></div></div><div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><span style='font-family:"Calibri","sans-serif";color:black'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: RE-wrenches@lists.re-wrenches.org<br><br>Options & settings:<br>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org<br><br>List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org<br><br>List rules & etiquette:<br>www.re-wrenches.org/etiquette.htm<br><br>Check out participant bios:<br>www.members.re-wrenches.org<o:p></o:p></span></p></div><div><p style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif";color:black'>Northern Arizona Wind & Sun - Electricity from the sun since 1979<br>--------------------------------------------------------------------<br><a href="http://store.solar-electric.com/">Online Solar Store</a><br><a href="http://www.wind-sun.com/ForumVB/">Free Solar Discussion Forum</a><br>--------------------------------------------------------------------<o:p></o:p></span></p></div></div></div></div></body></html>