Price, subsidy and output
Key takeaways
- Typical installed price: ₹1.2 lakh to ₹1.3 lakh with DCR panels, before subsidy.
- PM Surya Ghar subsidy: ₹30,000 (₹33,000 in hill and North East states).
- You pay about ₹0.9 lakh to ₹1 lakh after subsidy.
- Makes about 4 units a day, 120 a month, on 100 sq ft of shade-free roof.
1 kW solar system price in 2026
A 1 kW on-grid rooftop system with DCR panels typically costs ₹1.2 lakh to ₹1.3 lakh fully installed in 2026. That covers 2 panels of 540 Wp, an on-grid inverter, the mounting structure, wiring, earthing, the net meter application and installation. After the ₹30,000 PM Surya Ghar subsidy you pay about ₹0.9 lakh to ₹1 lakh, or ₹90,000 to ₹1,00,000 per kW.
A 1 kW system carries the same fixed costs as a bigger one: net meter, wiring, earthing, the visit. So it costs the most per kW. If your bill shows more than about 150 units a month, a 2 kW system usually pays back faster.
| 1 kW system | |
|---|---|
| Installed price (before subsidy) | ₹1.2 lakh to ₹1.3 lakh |
| Central subsidy, most states | ₹30,000 |
| Central subsidy, special category states | ₹33,000 |
| Your cost after subsidy | ₹0.9 lakh to ₹1 lakh |
| Panels (540 Wp) | 2 |
| Shade-free roof | 100 sq ft |
How many units does a 1 kW system make?
Across India, a 1 kW system makes about 3.9 units a day, 120 a month and 1,440 a year. That is enough for three fans, six LED lights, a fridge and a TV, about 135 units a month. Output depends on your state:
| State | Units a day | Units a month | Subsidy |
|---|---|---|---|
| Uttar Pradesh | 4.1 | 126 | ₹30,000 |
| Maharashtra | 4.0 | 121 | ₹30,000 |
| Rajasthan | 4.3 | 131 | ₹30,000 |
| Gujarat | 4.1 | 126 | ₹30,000 |
| Karnataka | 4.0 | 122 | ₹30,000 |
| Tamil Nadu | 3.9 | 120 | ₹30,000 |
| Delhi | 4.3 | 130 | ₹30,000 |
| Madhya Pradesh | 4.0 | 123 | ₹30,000 |
| Bihar | 4.0 | 122 | ₹30,000 |
| West Bengal | 3.7 | 113 | ₹30,000 |
| Kerala | 3.5 | 107 | ₹30,000 |
| Punjab | 4.2 | 129 | ₹30,000 |
| Haryana | 4.3 | 130 | ₹30,000 |
| Telangana | 4.0 | 121 | ₹30,000 |
| Odisha | 3.8 | 115 | ₹30,000 |
| Assam | 3.5 | 107 | ₹33,000 |
Payback at your electricity rate
If you use all 120 units yourself, the saving and payback at different per-unit rates are:
| You pay per unit | Saving a year | Payback (years) |
|---|---|---|
| ₹6 | ₹8,640 | 10.4–11.6 |
| ₹7 | ₹10,080 | 8.9–9.9 |
| ₹8 | ₹11,520 | 7.8–8.7 |
| ₹9 | ₹12,960 | 6.9–7.7 |
EMI on a 1 kW solar loan
With 10% down and the rest on a 10-year loan at 5.75%, the EMI is about ₹1,235 a month on a loan of ₹1.12 lakh. Put the ₹30,000 subsidy into the loan when it arrives and the EMI drops to about ₹906. Check the numbers for your quote in the solar EMI calculator.
What to check in the quote
- DCR panels on the ALMM list, named by make and model.
- Inverter make, model and warranty (usually 5 to 10 years).
- Structure height and material; a raised structure costs more but keeps the terrace usable.
- Who files the net meter application and what the DISCOM charges for it.
- Five years of free maintenance, which registered PM Surya Ghar vendors must provide.
Frequently asked questions
What is the price of a 1 kW solar system with subsidy?
About ₹0.9 lakh to ₹1 lakh after the ₹30,000 PM Surya Ghar subsidy, on a typical installed price of ₹1.2 lakh to ₹1.3 lakh in 2026.
How many units does a 1 kW solar system produce per day?
About 3.9 units a day on average across India, or 120 a month. Sunnier states like Rajasthan make about 9% more; Kerala and the North East about 10% less.
How much roof space does a 1 kW solar system need?
About 100 sq ft of shade-free roof for 2 panels of 540 Wp, including space to walk and clean.
How much subsidy is there on 1 kW?
₹30,000 in most states and ₹33,000 in special category states such as Uttarakhand, Himachal Pradesh and the North East.
What is the EMI for a 1 kW solar system?
About ₹1,235 a month over 10 years at 5.75% with 10% down, falling to about ₹906 if the subsidy repays part of the loan.
Compare other sizes: 2 kW · 3 kW · 4 kW · 5 kW · 10 kW. Not sure of the size? Start from your bill in the solar calculator. How we work out every figure: how we calculate.