Now I am no attorney and very skeptical of signing any contract as such in regards to a very costly system. Not sure how many people have had a good or bad experience with this sort of situation but I am very eager for any advice or help. Bottom line I own a house that is 2400 SQ FT and two stories. Getting 26 solar panels installed at $26K. Being told that there is a 25 year production guarantee. That term alone is questionable!