Dear Solar Guy:

        I have been interested in getting solar panels, however, I'm
concerned about the possible effects, if any, of upcoming solar storms.  I
know these storms are supposed to disrupt satellite transmissions and
possibly affect power grids.  However, I'm concerned if the solar storms
will have a negative effect on solar panels, as I am considering purchasing
them. Thanks!  

D. L. Box,  Katy, TX

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Dear D. L.

        A good question.  A friend has advised me on this. I think it
unlikely there would be any noticeable effect. Solar storms amount to a
higher than average flux of charged particles coming from the sun (the
"solar wind").  In effect, an electrical current flowing through space.
Electrical currents generate magnetic fields, so the fields from a changing
solar wind can cause the Earth's magnetic field to fluctuate.  A wire that
experiences a changing magnetic field has current flow induced in it. Such
(very small) fluctuations can induce higher than average currents in the
very long wires that make up power grids and communication networks, and the
'noise' may be problematical.

        By contrast, photovoltaics are responsive mainly to visible light,
and would be little affected.  You may have read about the adverse effect of
solar storms on solar (photovoltaic) cells in space.  In space there will be
some degradation of PV systems over time due to impingement of high energy
particles, but for terrestrial systems with the atmosphere as a shield it is
unlikely that the effect would be noticeable.    

The Solar Guy ... with help from a friend.