“How much does solar cost?” is the first question every homeowner asks. The honest answer: it depends on size, panel technology, inverter and mounting structure. But you can get a very good estimate in two minutes with this guide.
Indicative rooftop solar prices in Bangalore
| System size | Typical price (before subsidy) | Subsidy (residential) | Monthly generation* |
|---|---|---|---|
| 1 kW | ₹65,000 – ₹75,000 | ₹30,000 | 110 – 130 units |
| 2 kW | ₹1.2 – 1.4 lakh | ₹60,000 | 230 – 260 units |
| 3 kW | ₹1.7 – 2.0 lakh | ₹78,000 | 350 – 400 units |
| 5 kW | ₹2.7 – 3.2 lakh | ₹78,000 | 580 – 650 units |
| 10 kW | ₹5.0 – 6.0 lakh | ₹78,000 | 1,150 – 1,300 units |
*Indicative for a south-facing, shadow-free Bangalore roof. Prices vary with panel brand, structure height, cable length and inverter. Hybrid systems with batteries cost more.
What affects the price?
- Panel technology: TOPCon (590 Wp) panels cost slightly more than Mono PERC (545 Wp) but generate more per sq ft.
- Inverter: on-grid string inverters are cheapest; hybrid inverters + batteries add ₹60,000–₹2 lakh+.
- Structure: elevated structures (so you can use the terrace below) cost more but are worth it in Bangalore homes.
- Roof type: RCC, sheet and tiled roofs need different mounting.
- Distance from roof to meter and DB affects cabling cost.
Get an exact solar quote with a free rooftop survey.
Get Free QuoteHow much will you save?
Each kW in Bangalore generates roughly 4–4.5 units a day. At an average domestic tariff of about ₹7–8 per unit, 1 kW saves around ₹850–₹1,000 a month. A 3 kW system typically saves ₹2,500–₹3,000 every month.
Payback period
After subsidy, most residential systems in Bangalore pay back in 3 to 5 years. Since panels carry 25–30 year performance warranties, you enjoy 20+ years of nearly free electricity. Commercial users paying higher tariffs often see payback in 3–4 years even without subsidy, plus depreciation benefits.
Which size is right for you?
- Monthly bill under ₹1,500 → 1–2 kW
- ₹2,000 – ₹3,500 → 3 kW
- ₹4,000 – ₹6,000 → 4–5 kW
- Villa with ACs, EV charging → 6–10 kW
Try the solar calculator on our solar rooftop page for a personalised estimate.
Frequently Asked Questions
Is EMI available for rooftop solar?
Many banks offer low-interest solar loans under the PM Surya Ghar scheme. We can guide you through options.
Do I need batteries?
Not for on-grid systems. Choose batteries (hybrid) only if you face frequent power cuts.
Need expert advice for your home or business? Free site visit across Bengaluru.
Get Free QuoteDisclaimer: prices, tariffs and subsidy figures are indicative and based on publicly available information at the time of writing; they can change. Contact us for current, site-specific figures.
