What is the Return on Investment of Solar PV system?

Solar PV systems is ideal for electricity savings and thus reducing monthly expenses, both for Residential and Commercial applications. The Return on Investment is influenced by several factors including the current electrical tariff and the design of the Solar PV System. Grid Tied systems offers the shortest Return on Investment due to the relative low cost as oppose to systems which includes batteries like Hybrid, Bi-Directional and Off-Grid Systems.