9fca621a_me_or_business____Solar_Choice__Solar_Lease
[0] Return on investment [Purchase/Own] Typical payback periods for a residential solar PV system are in the range of 5-7 years, after which point annual returns on investment can be up to or over 20%, depending on factors such as purchase price, cost of electricity, and feed-in tariff incentive available. [Solar Lease] 
As no or little initial capital investment is required, power bill savings start happening immediately.
Is a solar lease right for your home or business? - Solar Choice
Solar Lease