Frequently Asked Questions for Solar Rooftop Systems
A solar rooftop system is composed of a set of solar PV panels, Inverter, mounting structure mounted on the rooftop of a residential or commercial building, connected together to generate electricity by converting solar radiation into electrical energy.
Such rooftop system has battery as storage facility. The solar electricity is stored in the battery and can be utilized during night also when the sun is not available.
In grid connected rooftop solar PV system, the DC power generated from Solar PV panels is converted to AC power using an inverter and is fed to the grid depending on the capacity of the system installed.
Such rooftop systems can be installed at the roofs of residential and commercial complex, industrial properties, housing societies, community centres, government organizations, private institutions etc.
The average cost of grid connected rooftop solar systems is about ₹50 per watt.
There is a provision of Central Govt. Subsidy of 30% of the total cost under the Grid Connected Rooftop and an additional Gujarat State Govt. subsidy (maximum up to ₹20,000) for residential installations.
Residential customers can install a solar rooftop system with full capacity of sanctioned load and beyond as per power requirement.
Sanctioned load means the load in kW/HP (kilo Watt/Horse Power) which the power distribution company has agreed to supply to the consumer subject to the governing terms and conditions.
There are provisions of concessional import duty/excise duty exemption, accelerated depreciation and tax holiday for setting up of grid connected rooftop power plants.
About 10 sq.m area is required to set up 1 kWp grid connected rooftop solar system.