Unisolar Roofing [RE-wrenches]

[Steve Bell]

Hi William,

I use the Siemens PVDesigner ver.2.0
It does a pretty good job for most applications, still has a quirks with
grid-tie.
Anywise, it does a good job of calculating module performance when the array
is not mounted facing due south. You simply enter how many degrees to the
east or west the array is facing (along with your tilt angle) and it gives
you a month by month presentation of the performance.

Sincerely,
Steve Bell
SunWize Technologies
sebpv at stelle.net

----- Original Message -----
From: "William Miller" <wrmiller at slonet.org>
>
> Also, does anyone know if there is a program available to calculate the
> efficiency of a PV array oriented away from true south at various
> declinations?
>
> William Miller


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