Delhi has rapidly become one of the leading cities in India adopting rooftop solar power. Rising electricity prices, government incentives, and environmental awareness are encouraging homeowners and businesses to install solar panels.
If you’re planning to install a solar system, understanding the cost of solar panel installation in Delhi is important. In this guide, we will explain the average price, subsidies, and factors that affect the total installation cost.
Average Cost of Solar Panel Installation in Delhi
The cost of installing a solar panel system in Delhi typically ranges between ₹75,000 and ₹85,000 per kW before subsidies. The final price depends on the system size, equipment quality, and installation complexity.
Estimated Solar System Cost (Before Subsidy)
| System Size | Estimated Price |
| 1 kW | ₹75,000 – ₹85,000 |
| 2 kW | ₹1,50,000 – ₹1,70,000 |
| 3 kW | ₹1,89,000 – ₹2,15,000 |
| 4 kW | ₹2,52,000 – ₹2,85,000 |
| 5 kW | ₹3,15,000 – ₹3,57,000 |
| 10 kW | ₹5,30,000 – ₹6,00,000 |
These costs usually include:
- Solar panels
- Solar inverter
- Mounting structure
- Wiring and electrical accessories
- Installation and labor
Government Subsidy for Solar Panels in Delhi
To encourage renewable energy adoption, both the central government and the Delhi government provide financial support for rooftop solar installations.
Central Government Subsidy
Under the PM Surya Ghar: Muft Bijli Yojana, residential users can receive the following subsidy:
| System Capacity | Subsidy Amount |
| 1 kW | ₹30,000 |
| 2 kW | ₹60,000 |
| 3 kW or above | ₹78,000 |
This subsidy is available for residential rooftop solar installations across India.
Delhi Government Incentives
Delhi’s solar policy also offers additional benefits such as:
- Additional subsidy for residential consumers
- Generation-Based Incentive (GBI) for electricity production
- Net-metering to export extra electricity to the grid
Some residential systems can receive extra incentives up to ₹10,000 depending on system capacity.
Solar Panel Cost in Delhi After Subsidy
Government incentives significantly reduce the total installation cost.
Estimated Cost After Subsidy
| System Size | Price Before Subsidy | Total Subsidy | Final Cost |
| 1 kW | ₹75k–₹85k | ₹32k–₹40k | ₹35k–₹53k |
| 2 kW | ₹1.5L–₹1.7L | ₹60k–₹80k | ₹70k–₹1.06L |
| 3 kW | ₹1.9L–₹2.1L | ₹78k–₹1.08L | ₹72k–₹1.31L |
| 5 kW | ₹3.15L–₹3.57L | ₹88k | ₹2.27L–₹2.69L |
A 3 kW solar system, which is common for most households, may cost around ₹1 lakh after subsidy.
Roof Space Required for Solar Panels
The space required depends on the system capacity.
| System Size | Roof Space Required |
| 1 kW | ~100 sq ft |
| 3 kW | ~300 sq ft |
| 5 kW | ~450 sq ft |
Homes with adequate sunlight and shadow-free roofs are ideal for solar installation.
Electricity Generation from Solar Panels
A solar system produces electricity based on sunlight availability.
Approximate monthly generation:
| System Size | Monthly Electricity Generation |
| 1 kW | 100–120 units |
| 3 kW | 300–360 units |
| 5 kW | 500–600 units |
This can significantly reduce monthly electricity bills for households.
Factors Affecting Solar Panel Installation Cost
Several factors can influence the total installation cost:
1. Solar Panel Type
Higher efficiency panels like mono-PERC or bifacial panels usually cost more but produce better output.
2. Inverter Quality
The inverter converts solar energy into usable electricity. Premium inverters may increase system cost but improve reliability.
3. Roof Structure
Flat roofs, tilted roofs, or complex rooftop designs may require additional mounting structures.
4. Installation Location
Labor and logistics costs may vary slightly depending on the location in Delhi.
Payback Period of Solar Installation
One of the biggest advantages of solar panels is long-term savings.
Typical payback period in Delhi:
- 4 to 5 years
Since solar panels last 25 years or more, most households can enjoy nearly 20 years of free electricity after recovering the installation cost.
How to Apply for Solar Subsidy in Delhi?
Homeowners can apply for rooftop solar subsidies through the national solar portal.
Application Process
- Register on the National Rooftop Solar Portal
- Submit rooftop solar application
- Choose a DISCOM-approved solar vendor
- Install the system
- Complete inspection and net-metering
- Receive subsidy directly in your bank account
Benefits of Installing Solar Panels in Delhi
Installing solar panels provides multiple benefits:
☀️ Lower electricity bills
☀️ Government subsidies and incentives
☀️ Net-metering benefits
☀️ Clean renewable energy
☀️ Increased property value
Conclusion
The cost of solar panel installation in Delhi has become more affordable due to government incentives and improved technology. With installation prices starting around ₹75,000 per kW before subsidy, and significant financial support available, solar power is now a practical investment for many households.
For most homes, a 3 kW rooftop solar system offers the best balance of cost and electricity savings. With a payback period of just a few years, switching to solar energy can help reduce electricity expenses while contributing to a cleaner environment.