The cost of a 5 kW solar system can vary greatly depending on several factors, 

(1) Such as the location

(2) The type and brand of panels and inverters used and installation costs.

 However, On average, a 5 kW solar system can cost anywhere from ₹2,75,000 to ₹3,50,000 before incentives, with the national average cost being around ₹3,00,000.

 It's important to keep in mind that this is just an estimate and the actual cost may be higher or lower, so I would recommend getting quotes from multiple solar installers to get a more accurate idea of what a 5 kW solar system would cost in your specific location.