jet contrails and solar output [RE-wrenches]

[Bill Brooks]

Carl,

I would be very careful putting much stock in that kind of information. Sure
contrails can have an effect--but nowhere near 30% (certainly for short
periods, but not a day). I agree its a good thing to keep in mind, but we
really don't need to put any more fables in customers minds about the
unpredictability of solar energy. There are already huge misunderstanding by
customers that "solar can't work because its too cloudy or foggy here." The
fact is it is more predictable than most anything in this life and should be
viewed that way by the customer.

Bill Brooks
Endecon Engineering

-----Original Message-----
From: carl reuter [mailto:solarcruzer at yahoo.com]
Sent: Thursday, July 11, 2002 8:29 AM
To: RE-wrenches at topica.com
Subject: jet contrails and solar output [RE-wrenches]



Dear Wrenches: Last week I did a system upgrade for some folks living in the
Sierra Nevada foothills and the customer told me that the output of his
original eight BP90s on a Wattsun tracker would drop by 30% on some days
where there was a lot of jet activity. He attributed this to the contrails
or 'chemtrails' as he called them. I thought that was a bit of an
exaggeration until I just read a newspaper clip about how Nasa announced
that contrails are actually forming weather altering clouds and having an
impact on our climate. Apparently they saw a dramatic shift after sept. 11
and were able to study it better with the planes grounded. It seems we may
have to factor this into module output calcs in the future.Carl Reuter



Carl Reuter, Land and Sea Solar
"Bringing Solar Down To Earth"
www.landandseasolar.com
Ph: 831-477-7169
Fax: 831-465-8349




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