"$217.09 for the year."?? That's about the cost of his Enphase Inverter..
Yeah, a 30 deg roof isn't real good, unless you live down south. Around here 41 degs is good.
Sometimes a taller mounting bracket on the north end of the panel will work,
if it's not too tall or too near the peak, where the north wind can get under it.
(Wind baffle bars underneath the north end can alleviate a wind-lift problem).
A 235 deg direction isn't that bad. If the roof is fully exposed to the sun for most
of the day, you might see pretty good performance. The make all sorts of mounts.
Fin mount.. Odd name..
Vibrant Solar: PV Solar Panel Placement