Payback period for your solar PV system stands for the amount of time it takes for your initial investment in the system to be recovered from the savings it leads to and Return on Investment (ROI) refers to the effective returns that your investment would generate. The higher your monthly savings, the quicker your initial investment would be repaid and the higher your ROI would be. Typically, commercial & industrial consumers should expect payback in 3 – 5 years and residential consumers should expect payback in 5- 7 years. Once the initial cost of your system is paid back, the energy generated by it for the next 18 – 22 years is almost free of cost.
Run the MYSUNCalculator to determine your ROI