Hi Allan; http://www.telegraph.co.uk/science/space/7819201/Nasa-warns-solar-flares-from-huge-space-storm-will-cause-devastation.html http://science.nasa.gov/heliophysics/big-questions/how-does-solar-variability-affect-human-society-technological-systems-and-the-habitability-of-planets/ http://science.howstuffworks.com/solar-flare-electronics.htm http://www.wind-sun.com/ForumVB/showthread.php?t=10548
Should I shield all my electronics under my lead batteries, or is this our next Y2K non event? Ray On Mar 19, 2011, at 11:58 AM, Allan Sindelar wrote: > For those of us less aware of solar flare issues and what we might expect > that relates to PV, could someone provide a good link to educate us? > Thanks, Allan > > Allan Sindelar > al...@positiveenergysolar.com > NABCEP Certified Photovoltaic Installer > NABCEP Certified Technical Sales Professional > New Mexico EE98J Journeyman Electrician > Positive Energy, Inc. > 3201 Calle Marie > Santa Fe, New Mexico 87507 > 505 424-1112 > www.positiveenergysolar.com > > > > > On 3/19/2011 11:48 AM, R Ray Walters wrote: >> >> Hi Drake; >> >> No, I don't have answers, just more of your same concerns. I had a high >> altitude (12,500 ft) installation damaged recently, possibly by a solar >> flare in Feb; we lost a C40 charge controller. >> At this point, I don't know if the flare was the cause or not, but I would >> expect more problems at higher altitudes. >> So far, my internet research says that the panels and batteries would be ok, >> but we might expect damage to electronics similar to the induced high >> voltages caused by lightning. >> Would grounding help? (I, too, also considered the Faraday cage....) >> >> NASA is predicting the solar storm of a generation for 2012-2013, and I read >> of a similar EMP incident in the 1800s that set telegraph equipment on fire. >> I think very long utility lines and transformers at the ends of those lines >> are the most vulnerable, so this could be more of GridTie issue? >> >> R. Walters >> r...@solarray.com >> Solar Engineer >> >> >> >> >> On Mar 19, 2011, at 8:53 AM, Drake wrote: >> >>> Hello Wrenches, >>> >>> I had an inquiry concerning the effect of EMP on photovoltaic systems. We >>> are heading for a period of solar activity that likely will produce this >>> effect. According to a local AEP (American Electric Power) representative, >>> the utility is spending a lot of money to counter this anticipated problem. >>> Additionally, nuclear related issues are moving back to the front burner. >>> >>> It is clear that the pulse would damage an inverter, but possibly it could >>> be put in a Faraday cage. But a number of questions arise. >>> Would the pulse damage the modules? >>> Could the large currents and voltages induced by EMP damage the conductors >>> in the cells? >>> Even if the inverters were surrounded by a Faraday cage, would induced >>> currents & voltages from the modules harm the inverters? >>> Would series fuses and surge protectors be adequate protection. >>> Has any research been done in this area? Does anyone know answers to any >>> of these questions? >>> >>> Thanks, >>> >>> Drake >>> >>> Drake Chamberlin >>> Athens Electric >>> OH License 44810 >>> CO license 3773 >>> NABCEP Certified PV >>> >>> _______________________________________________ >>> List sponsored by Home Power magazine >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> 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: RE-wrenches@lists.re-wrenches.org >> >> 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: RE-wrenches@lists.re-wrenches.org > > 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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