I think Dave was right originally.  As the roof is raised, the angle of
incidence decreases.  (The angle of incidence is measured from the normal
(perpendicular) of the reflecting surface).

Alfred
85 Westy

----- Original Message -----
From: "Dave Baker" <dbaker5@kc.rr.com>
To: <vanagon@gerry.vanagon.com>
Sent: Saturday, August 10, 2002 1:18 PM
Subject: Re: Ideas for Photovoltaic mount?

> Make that "increases" the angle of incidence.
>
>
> ----- Original Message -----
> From: Dave Baker <DBAKER5@KC.RR.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Saturday, August 10, 2002 12:33 PM
> Subject: Re: Ideas for Photovoltaic mount?
>
>
> > Check out the following link:
> >
> > http://members.fortunecity.com/davebaker1/westy/id20.htm
> >
> > The kit I installed used brackets shaped like the letter "Z" which
enabled
> > me to secure the panel to the fiberglass roof.  It works out well,
because
> > when you're facing North (in the Northern Hemisphere) and pop the top,
it
> > reduces the angle of incidence of the solar rays and provides improved
> > output.
> >
> > Dave in KC
> > 85 Westy