Solar Panels on roofs

[Marc Biviano]

Hi , I'm looking for feedback on solar panels on my personal home in Massachusetts. I am in need of a new roof soon and have been looking into solar panels on my roof as an option to cut my electric bill. I would only be interested in purchasing the panels on a payment plan with a payoff period of about 7 years. Massachusetts still has a 30% credit on place as well as a State $1000 credit. I'm looking for peoples experience with solar panels good and bad to determine if it is worthwhile for me. Also what have you had for costs of installing 6-8kw systems will solar panels hurt the longevity of my roof. Thanks