Owning Solar
Purchashing your Solar System outright has plenty of advantages.
If you are looking to stay in your home for more than 5 years and can take advantage of the 30% Federal Tax Credit then buying your system cash will yield the best return on investment.
Paying for the power you are consuming is another great option.
It is a lot like switching utility companies; instead of paying your utility company, you get your energy from the guys who harness it from the sun,which is done cleanly and about half the price to boot!
Leasing/PPA
The technology has been around for over 50 years and some of the initial solar cells are still operating today. The panels are designed to produce at least 80% of their initial power even after 25 years. The efficiency and cost has significantly improved in the last 5 years.
A well-designed solar system needs clear access to the sun with limited or no shading issues. You can often make a good determination yourself by identifying optimal roof lines and evaluate any shading hazards like trees, chimneys, and neighboring homes. Typically, the best orientation for solar systems is southern facing, however west or east facing may also be acceptable.
Financing Solar
Financing your system gives you the same benefits as if you were to buy your system cash.
You can own your system with no money down and your monthly payment is less than what you are already paying for electricity.
