20 kW Solar Panel Price in India with Subsidy – Cost, Benefits & Installation Guide (2025)
Solar energy is becoming the go-to solution for homes and businesses in India, offering a clean, cost-effective, and sustainable power source. If you’re considering installing a 20 kW solar panel system, this guide will walk you through pricing, subsidies, benefits, installation, and more.
What is a 20 kW Solar Panel System?
A 20 kW solar system is a large solar power setup designed for commercial properties, factories, large homes, and schools. It generates around 80-100 units of electricity per day, reducing dependency on grid power and significantly cutting electricity bills.
Types of 20 kW Solar Systems in India
1. On-Grid Solar System (Grid-Tied)
- Connected to the electricity grid
- Excess electricity is sent back to the grid (Net Metering)
- Lower installation cost (no battery required)
- Best for areas with stable electricity supply
💰 Price (2025 estimate): ₹8,00,000 – ₹10,00,000
2. Off-Grid Solar System (Battery-Based)
- Works independently, not connected to the grid
- Stores energy in batteries for backup use
- Ideal for remote areas with no grid access
- Higher cost due to battery storage
💰 Price (2025 estimate): ₹12,00,000 – ₹15,00,000
3. Hybrid Solar System (Grid + Battery Backup)
- Connected to the grid but also has battery backup
- Provides power during grid failures
- More expensive but reliable
💰 Price (2025 estimate): ₹13,00,000 – ₹16,50,000
20 kW Solar Panel Price in India (2025)
The price of a 20 kW solar system depends on factors like the type of system, brand, quality of components, and installation costs.
| System Type | Price (INR) (2025 Estimate) |
|---|---|
| On-Grid System | ₹8,00,000 – ₹10,00,000 |
| Off-Grid System | ₹12,00,000 – ₹15,00,000 |
| Hybrid System | ₹13,00,000 – ₹16,50,000 |
Note: Prices may vary depending on location, installation, and brand.
Government Subsidy for 20 kW Solar Panel in India (2025)
The Indian government offers subsidies under the Rooftop Solar Programme (PM-Surya Ghar: Muft Bijli Yojana) to promote solar adoption.
Subsidy Rates for 2025
- Up to 3 kW: 60% subsidy
- 3 kW to 10 kW: 40% subsidy
- Above 10 kW: 20% subsidy (Only for residential users)
✅ For a 20 kW system, subsidy applies only to the first 10 kW. ✅ Businesses can claim tax benefits through Accelerated Depreciation (40%).
How Much Electricity Does a 20 kW Solar System Generate?
A 20 kW solar system generates 80-100 units per day, depending on sunlight availability.
Monthly & Yearly Generation:
- Monthly: 2,400 – 3,000 units
- Yearly: 28,800 – 36,000 units
🔋 Savings Calculation: If your electricity cost is ₹8 per unit, then:
- Monthly Savings: ₹19,200 – ₹24,000
- Yearly Savings: ₹230,400 – ₹288,000
With these savings, the system pays for itself in 4-5 years.
Space Requirement for a 20 kW Solar System
To install a 20 kW solar system, you need adequate space on your rooftop.
| System Type | Required Area (sq. ft.) |
| On-Grid | 1,600 – 2,000 sq. ft. |
| Off-Grid | 1,800 – 2,200 sq. ft. |
| Hybrid | 1,800 – 2,200 sq. ft. |
Components of a 20 kW Solar System
A complete 20 kW solar setup includes:
- Solar Panels – Convert sunlight into electricity
- Solar Inverter – Converts DC electricity to AC electricity
- Batteries (for Off-Grid & Hybrid) – Store excess power
- Mounting Structure – Holds panels securely
- Net Meter (for On-Grid Systems) – Measures power exchange
- Cables & Connectors – Ensure smooth power flow
Benefits of Installing a 20 kW Solar System
✅ Huge Electricity Savings – Reduce or eliminate electricity bills. ✅ Government Subsidy – Cut down installation costs. ✅ Eco-Friendly – Reduce carbon footprint. ✅ Low Maintenance – Requires minimal upkeep. ✅ Energy Independence – Reliable power even in outages. ✅ High ROI (Return on Investment) – Pays for itself in 4-5 years.
How to Apply for a Solar Subsidy in India?
Follow these steps to claim a subsidy:
- Register on the National Solar Portal (https://solarrooftop.gov.in/)
- Choose a government-approved solar vendor
- Get the solar system installed
- Apply for an inspection
- Receive the subsidy amount in your bank account
Frequently Asked Questions (FAQs)
🔹 Q: How long does a 20 kW solar system last?
➡️ A solar system typically lasts 25-30 years with proper maintenance.
🔹 Q: How often do solar panels need cleaning?
➡️ Once a month to remove dust and dirt.
🔹 Q: Can I install a 20 kW solar system in an apartment?
➡️ It depends on available rooftop space and society permissions.
🔹 Q: Can a 20 kW solar system power an entire office or factory?
➡️ Yes, it can support heavy appliances like air conditioners, machinery, and computers.
Conclusion
A 20 kW solar panel system is a fantastic investment for businesses, factories, and large homes. With government subsidies, high savings, and low maintenance, switching to solar is now easier than ever.
💡 Thinking of installing solar? Get started today! 🌞
