posted on Aug, 7 2011 @ 02:51 AM
The main danger in Solar Flares and Electromagnetic pulses disabling electrical devices is due to Inductive Reactance.
Faradays law of induction states:
The induced electromotive force (EMF) in any closed circuit is equal to the time rate of change of the magnetic flux through the circuit.
The EMF generated is proportional to the rate of change of the magnetic flux.
What this means, is that a magnetic field of sufficient strength and movement or alternating flux will induce current flow in conductors, or
The reason that this is a problem for electronic devices, is due to the extremely small semiconductor based transistors in those electronic
If the change of magnetic flux is strong enough, it will cause voltage spikes within the devices that are beyond the devices ability to ground, and
thus will cause heat beyond the devices ability to radiate away.
Basically, Electromagnetic pulses "Melt" the semiconductors from the inside out, and thus, you would only see this happening to small integrated
circuits and microchips.
Since Photovoltaics are actually designed to not only work under large temperatures, but also dissipate relatively high current loads, you should not
have a problem with photovoltaics in this particular fashion.