It seems quite possible that a solar caused pulse could take out the grid without affecting an off grid or battery backed grid tie solar system. In fact it's already happened: http://en.wikipedia.org/wiki/March_1989_geomagnetic_storm
Dick Ratico Solarwind Electric --- You wrote: Good answer Wayne...how strong AND how far away. I'm sure the inverse-square law apples here but if you don't know the initial power and distance, it does not matter much anyway. Now, for a hilarious interjection, there is a customer in our showroom at this moment asking about PV solar in case there is am EMP that takes out utility power! So funny. Larry --- end of quote --- _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & 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
