Hi,
What's everyone's opinion on this: I had a fellow come out to the house today from a reputable local solar installation company. SE PA is the area. I would love to lose the PECO bill, who wouldn't. I need a 10,000 KW system to replace my annual electric usage. To generate this I am looking at the following math:
$65,000 installation with 5 yr. warranty of system malfunction (but not hail damage, etc.)
$12,000 credits within 6 months of install from state.
$19,500 Fed. tax credit which I can use over 15 years (it rolls over).
Then, based upon current markets and billing patterns the projections are (not guaranteed):
Save $200 month on Peco bill= $2400 a year
Earn $4000 a year in renewable energy credits sold like commodities on exchanges.
If all this math holds true I would have a 6 year payback on the install, which is pretty good.
Here are the risks/problems I see:
1) I am self employed. I don't show much income every year and I have allot of writeoffs: I don't think the 30% fed tax credit is worth much to me.
2) I would have to get a rider on my insurance policy to cover hail damage/tree falls on the panels...that's not free.
3) I would have to front the $65,000 for awhile before any money comes back to me: there's an opportunity cost there (I'm in contracting/real estate, I could use the money for projects).
4) I don't know the energy credit market at all...I imagine there's political risk there...it may not pay in 3 years what it pays now.
5) Repairs: its hard enough finding good contractors to fix regular housing components...solar? Warranties aren't worth much in my experience.
I'm having a hard time with the sticker shock. I'd be interested in anyone's experience or opinions. Thanks,
Pete
Number too big to comprehend! 
I'd feel alot better about that than solar!