[Greenbuilding] PV Tracking ~ Fibonacci?

[Reuben Deumling]

On Mon, Aug 22, 2011 at 10:10 AM, Corwyn <corwyn at midcoast.com> wrote:

>
> Short of having a sun tracker, you should have ALL your solar panels facing
> the best direction.
>

Hard not to agree with that.
Portland, Oregon has some of the worst insolation values in the winter, and
yet I see plenty of roofs with West facing PV arrays. And these are
grid-connected heavily subsidized systems(!) Can someone remind me where I
can look up online how much of a hit such a system is likely to take because
of its orientation?

Thanks.

Reuben Deumling
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