The home solar installation cost of a 1 kW solar system can be between Rs. 90,000 to Rs. 1,30,000. The total cost depends on the components such as the solar panels, mounting structure, solar inverter etc.
Components of a 1 kW Solar System
The following are the components of a 1 kW solar system:
1. Solar Panels
A solar system contains photovoltaic(PV) cells which convert sunlight into electricity. For maximum efficiency, the sunlight must fall perpendicular to the panels.
Cost: The cost of 1 kW mono-PERC DCR panels ranges from Rs. 34,000 to Rs. 38,000.
2. Solar Inverter
The electricity generated by a solar system is in the form of Direct Current (DC). However, home appliances cannot use electricity in DC form. The solar inverter converts the electricity into Alternating Current (AC). It is in AC form that electricity can be used to run home appliances.
Cost: The cost of the inverter is around Rs. 19,500 to Rs. 20,500.
3. Mounting Structure
It holds the solar panels and points them towards the sunlight at an optimum angle. A mounting structure must be sturdy enough to support your solar system for 25 to 30 years.
Cost: For a 1 kW system, the mounting structure will cost Rs. 8,500 to Rs. 10,000.
4. Net Meter
A net meter is a bidirectional device which measures the export of electricity from the solar system to the grid and the import of electricity from the DISCOM’s grid to your house. Ultimately, you will pay the bill based on your net consumption of electricity.
Cost: A net meter can cost between Rs. 2,000 to Rs. 4,000.
5. ACDB
The ACDB box is fixed between the inverter and the household appliances. It prevents voltage fluctuations from damaging the appliances.
Cost: The ACDB costs between Rs. 3,000 to Rs. 4,000.
6. DCDB
The DCDB is installed between the solar panels and the inverter. It protects the inverter and cable wires from current and voltage fluctuations.
Cost: The DCDB is priced in the range of Rs. 3,000 to Rs. 4,000.
7. AJB
The Array Junction Box (AJB) collects the electricity created by the solar system and transmits it to the inverter. It also has blocking diodes to prevent reverse current flow protection.
Cost: It costs Rs. 5,000 to Rs. 6,000.
8. Lightning Arrester
You have to install a lightning arrester to protect your panels from lightning. When lightning strikes, the arrester transmits it to the earth via lightning.
Cost: It costs Rs. 2,000 to Rs. 2,500.
9. Other Components
Components such as MC4 connectors, conduit pipes, and wires are required in a rooftop solar system. They serve different purposes. MC4 connectors connect the solar panels and wires are required for transmission of electricity.
Cost: The other components can cost between Rs. 5,000 to Rs. 15,000.
10. Installation Charge of Vendor:
Cost: Installation charges will be in the range of Rs. 10,000 to Rs. 30,000.
Combining all the costs, it will cost Rs. 90,000 to Rs. 1,30,000 to install a solar system
1 kW Solar System Subsidy in India
Under PM Surya Ghar, you can get a subsidy of Rs. 30,000 for installing a 1 kW solar system. This will bring down the home solar installation cost to Rs. 60,000 to Rs. 1,00,000.
Cost of Solar Panels
The cost of a solar panel depends on its technology and whether it is DCR or non-DCR. Non-DCR panels are cheaper than DCR panels.
Solar Panel Types | Per Watt Price (Non-DCR) | Module Price (Non-DCR) | Per Watt Price (DCR) | Module Price (DCR) |
Mono-PERC Half Cut (550 Wp) | Rs. 20/Watt | Rs.11000 - Rs. 12000 | Rs. 23/Watt | Rs.12500 - Rs. 13500 |
Mono-PERC Half Cut Bifacial (550 Wp) | Rs. 22/Watt | Rs. 12000 - Rs.13000 | Rs. 25/Watt | Rs. 14000 - Rs. 15000 |
TOPCon Bifacial (N Type) (570 Wp) | Rs. 24/Watt | Rs.14000 - Rs. 15000 | Rs. 27/Watt | Rs.15500 - Rs. 16000 |
Which Panel Should You Select For Your Solar System?
The most popular panels in the market are mono-PERC and TOPCon. HJT is an emerging technology which is yet to go mainstream.
The efficiency of the panels depends on their technology. Mono-PERC panels have an efficiency of 20-21% and TOPCon panels have an efficiency of 22-23%.
You can use solar power for various purposes such as cooking and charging electric devices. The solar panel benefit includes a reduction in electricity bills and the generation of clean energy.
Monthly Electricity and Savings Generated by a 1 kW Solar System
A 1 kW system with mono-PERC solar panels can generate 4 to 6 units of electricity per day. In a month, it will generate 120 to 180 units of electricity. If you pay for your electricity at Rs. 8/ unit, you can save Rs. 960 to Rs. 1,440 monthly.
You must enquire about quotations for installing your solar system. The vendor who installs your solar system must be empanelled with your DISCOM. At Das Energie, you can get the best quotations for solar system installation. They have thoroughly vetted the vendors to ensure that customers like you get the best service for solar system installation.
A 1 kW solar system is ideal for customers who consume around 120 units of electricity monthly. The home solar installation cost can vary according to the type of solar panels used and the components of the solar system. You can save around Rs. 960 to Rs. 1,440 monthly with a 1 kW solar system.
