HI Allan, I"ve got to disagree on the tracker part. The cost to buy and ship a tracker to some far off land, I think if you do the math, modules are cheaper and more reliable.
jay peltz power On Feb 10, 2011, at 5:20 PM, Allan Sindelar wrote: > Just one note - if batteries fail - no, make that when batteries fail - the > system is dead. If a tracker fails, the system continues to operate at a > reduced output. So the risk is reduced. I, too, would prefer a fixed array, > but a tracker is a concession to their gpd request. > > In this application - fairly low latitude, warm climate - a Zomeworks passive > tracker ought to be a good choice. Pretty reliable, no electronics, and if it > does fail ropes can face it to the sky. > Allan > > Allan Sindelar > [email protected] > NABCEP Certified Photovoltaic Installer > EE98J Journeyman Electrician > Positive Energy, Inc. > 3201 Calle Marie > Santa Fe, New Mexico 87507 > 505 424-1112 > www.positiveenergysolar.com > > On 2/10/2011 4:57 PM, Jeff Oldham wrote: >> >> I strongly agree with the "no batteries" approach. All issues mentioned come >> to fruit and in far too few years those batteries will be abused to toast >> and now the system will sit for a very long time if not forever and no water >> for the community. Your best options are to live with what you can get >> PV-direct (I'm even hesitant to use trackers in these applications) or drill >> additional wells nearby if you cannot stack pumps in the well with minimal >> drop pipe sizing or larger boreholes. >> >> On a side note, I'm always hearing from remote folks that they cannot get >> distilled water and are forced to use whatever and those that can pay >> through the nose for tiny red bottles of it. I point out that it falls for >> free from the sky whenever it rains - collect it! >> >> >> >> From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative >> SOLutions >> >> >> ____________________________________________________________ >> $65/Hr Job - 25 Openings >> Part-Time job ($20-$65/hr). Requirements: Home Internet Access >> Channel11NewsReport.com >> >> _______________________________________________ >> List sponsored by Home Power magazine >> >> List Address: [email protected] >> >> Options & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out participant bios: >> www.members.re-wrenches.org >> > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org >
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