There are many full-service solar installations companies, and if you want the job done for you that is the route you should take. However, if you posses good DIY skills and are not afraid of working on a roof then a Do-It-Yourself Net-Metering installation could be in the cards for you: This can save quite a bit of money and make payback and Return-On-Investment significantly better!
We can help you with a DIY installation; we have a decade of hands-on experience installing solar, and can point out the does and don’t s. We can also help you with electrical code questions.
You should be honest with yourself about your skills and abilities. Installing solar PV is not rocket science, though it is not a beginner’s project either. It is legally allowed to do your own electrical work (with a permit), however, we would strongly suggest teaming up with an electrician. Not just for the invaluable advise they can give you, but also to have an electrician do the AC wiring such as connecting the system to your panel or doing a line-side tap, and to deal with the ESA and your LDC.
The costs of materials for a 10kW grid-tie solar PV system, including sloped-roof racking and shipping, are around $16,500 at the time this was written (April 2016). On top of that come the LDC fees ($1,500), roof engineering analysis ($700), electrician fees plus materials ($2,000), and permits ($500 – $750). That brings the fixed costs, which you will have regardless of system size, to around $5,000, and overall cost for a 10kW Net-Metering system to $24,300 plus your time (this includes HST, since you can not claim that back for Net-Metering).