They are solarworld panels, I don't remember the true specs but there are (33) 230watt I believe panels with a Sma sunnyboy 7kw inverter. I looked long and hard at wind, in fact after 11 meetings and 4 public hearings I received my permit but it did not make financial sense. I looked at a 10kw Bergy on an 141' pole but the actual production is 1/2 of the stated chart per the mfg. there is one of that setup nearby and I asked to use his Internet login and track yearly production and I was very unimpressed.
I have an electric meter like everyone else but it is a "net meter" and can run forward and backwards... For example right now I am producing more electric than I am using and my meter is running backwards (I am selling the electric at full rate) if it is cloudy or at night I will purchase power like normal. So in essence if I use 7000kw in a year and produce 7500kw then I will get a credit on my account at year end at wholesale. For year 1 I racked up a 2500wk credit going into the winter (which has less hours in the day of sunlight and snow on the panels at times),,, that carried me the winter and I was almost even for the year. I pay $16 a month for a meter/ability to sell. Some people get battery storage and such but the cost of install and replacement batteries does not compare to net metering. I also have a generac natural gas generator in case the power goes out. If the power goes out with solar without batteries it will shut down by design so it does not backfeed the grid
It won't let me upload pics ,,, but since 5/15/12. 12,729kw produced... Right now it is somewhat over cast but for the day I am producing 20.16kw at 140pm and currently at 4746w true output. My net meter is showing power to the grid thus I am using less than 4746w and I am selling excess
-11,000 state credit
-5,000 state credit
-10,500 federal credit
Thus net cost $8500 and it will produce $1200 +\- electric per yr
7yr payback then money in the bank.
1 thing to remember,,, if you were to get a loan for say,,,, $100 a month for 8yrs and you saves $100 a month in electric then you pay your loan with your electric money your not paying... In essence robbing Peter to pay Paul for 8yrs then you will have free electric for another 25yrs.... Note my numbers are different than the ones listed above
Your state credits are more generous than here in GA. We get around 30% and that is it. The Fed, of course, will be the same.
My home has too much tree shade for this to work; and I have LOW elec bills as a result.
I do have a question though: Did you live in the house before the solar was installed? If so, does the presence of the panels on the roof shield the house from some of the heat gain during the day? I have wondered about this for years, and when I ask a solar guy... they hedge and change the subject.
I did live in the home about 3yrs before the solar was installed. I roofed the house myself the 1st yr. the south side where the panels are will be essentially fully shaded as they are covered with panels. I didn't take attic temps before and after but I would imagine it would be cooler due to the shading.