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Tractor Talk Discussion Board

Re: ok, some facts about our solar system


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Posted by jdemaris on June 10, 2014 at 05:21:41 from (70.195.142.212):

In Reply to: ok, some facts about our solar system posted by jennifer408 on June 09, 2014 at 21:29:09:

To those on this forum expressing doubts about the
solar panels. They just about all come with an
output guarantee of something like 80% after 25
years. They degrade slowly. Like a tractor - a
solar panel is not just "one thing." It is a bunch
of solar cells wired together with blocking
diodes. They can be repaired when needed. In
regard to the silicon cells themselves -it has
been proven long ago that they can last 50 years
or more. Many of the first solar-powered
satellites sent to space 50 years ago are still
making power. Like the US Vanguard sent up in
1958.

Solar panels are of little concern. The expensive
electronics like inverters and controllers are
what's going to cost money to maintain. So do the
batteries and whatever is used for back-up power
when the sun doesn't shine. People who live off-
grid have to use fuel-driven electric generators a
lot and they wear out and are expensive.


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