It depends on how much is your electricity consumption. If your monthly electricity consumption is 120 Unit (kWh), you need a system of 1 kW. This will cost around Rs 90,000 to Rs 130,000 depending on the type of installation (On-Grid, ). A 1 kW system will generate around 120 Units (kWh) of electricity per month can take eight points of loads such as lights, fans, television etc. For higher energy requirements such as refrigerator, cooler, pump one needs to install more solar panels. Once installed this can run for 25 years or beyond. To know how much it will cost for your requirements just give us a call or fill up the GoSolar form. We will take care of the rest.