The payback period is the amount of time needed to recover the initial outlay for an investment. It is calculated by dividing the initial capital outlay of an investment by the annual cash flow.

A payback period is the amount of time it takes to earn back your initial investment through monthly energy savings. How much you save per month depends on the size of your solar system, your home ...

A "solar payback period" is a fancy way of talking about how long it takes for the money you spent to be outweighed by the money you're saving (or earning) on your electricity bill.

A "solar payback period" is a fancy way of talking about how long it takes for the money you spent to be outweighed by the money you're saving (or earning) on your electricity bill.

Image: EnergySage The average estimated payback period for residential solar is 8.3 years, averaging 10.4 kW. This has improved slightly from the average breakeven return on investment of 8.7 years.

In the elevated PV array layout, all 16 modules were installed in a single-row series to reduce shadowing on the crops beneath them. Again, a 55% to -55% tilt angle was chosen, using trackers.