Re: [A/S] solar panels

[Jim Dunmyer <jdunmyer@xxxxxxxxxxx>]

Max,
  When I got my first solar panel, I mounted it on an 'A' frame and 
deployed it when camped. I did a bit of experimenting at home and found 
that it does make a big difference when the panel is pointed directly at 
the Sun. Some folks even make adjustable brackets so they can 'aim' 
their panels.

However, most people simply add another panel(s) and figure that things 
will average out, as you say. I found that my panels will do right at 4 
amps when the Sun is high in the sky; installing the pair on the top of 
the trailer gives me a maximum of 6 amps total because both are never at 
optimum simultaneously.

However, I couldn't be happier with the performance. I've considered 
adding a couple more panels, but frankly don't need the electricity. My 
batteries are fully charged by 1:00 or 2:00 PM most days.

You're right about the controller/regulator. Only the smallest panels 
don't require one. You want panels with 36 cells, which gives 18 or 19 
volts. This "overhead" makes up for wire loss, etc., but makes a 
controller mandatory. The SolarBoost series of controllers actually uses 
this overhead to make useable power, often elminating the need for an 
additional panel.

                         <<Jim>>