Based on a report, the 20kW solar system price, on average, will be between Rs. These will be completely based on the type of system along with the quality of components that are used. Overview of 20 kW Solar System Costs in India (2026) The typical cost range for a fully installed 20 kW solar system in India in 2026 lies between ₹9 lakh and ₹16 lakh, variation driven by system type (on-grid, off-grid, hybrid) and component quality. A more granular breakdown from multiple sources. If you're considering installing a 20 kW solar panel system, this guide will walk you through pricing, subsidies, benefits, installation, and more. 9,40,000 and the. The average cost in India ranges from Rs. 10 to 25 lakh, while it is approximately $58,600 in the US.