Rooftop solar in Bengaluru
Calculator below is tuned to Bengaluru's sunshine, not a generic national average.
- Peak sun
- ~5.2 hrs/day
- Generation
- ~4.2 units/kW/day
- Max subsidy
- ₹78,000
Where your money goes
Your 25-year money curve
What the planet gets
Based on India's grid emission factor (~0.82 kg CO₂/unit) and ~20 kg CO₂ absorbed per mature tree per year.
BESCOM and other Karnataka DISCOMs offer net metering for residential rooftop. Central PM Surya Ghar subsidy applies; no confirmed state top-up currently.
Enter a valid monthly bill greater than ₹0 to see your results.
Solar in Bengaluru: what's different locally
Bengaluru's mild climate is ideal for panels (heat derating is minimal) and BESCOM has processed rooftop applications for a decade. Independent houses and villament roofs do best; apartment towers need the society route.
DISCOM: BESCOM; India's most experienced urban DISCOM for rooftop solar.
Typical residential areas going solar: Whitefield, JP Nagar, Sahakara Nagar, HSR Layout, anywhere with a shadow-free roof works the same way.
| Electricity provider | BESCOM / MESCOM / HESCOM / GESCOM |
|---|---|
| Avg peak sun hours | ~5.2 hours/day |
| 3kW generates | ~378 units/month |
| Benchmark install cost | ~₹60,000/kW (gross, before subsidy) |
| 3kW total subsidy | ₹78,000 |
| Application timeline | 30-45 days |
Sun-hour figures are annual averages from public irradiance data, rounded, your roof's orientation and shading move the real number. Generation assumes a ~0.8 performance ratio (inverter losses, temperature, soiling).
Official portals, apply & verify here
We are not affiliated with any government body. Applications and current scheme rules live on these official portals, never pay anyone to "arrange" the subsidy for you.
Sources for this page
- PM Surya Ghar Muft Bijli Yojana (MNRE), subsidy slabs and process
- BESCOM, tariff and net metering details
- Global Solar Atlas, city irradiance ballparks
Bengaluru solar FAQs
How much does a 3kW solar system generate in Bengaluru?
Roughly 378 units per month, based on Bengaluru's ~5.2 peak sun hours per day (about 4.2 units per kW daily after real-world losses). High-sun months generate more, monsoon months less, this is the annual average.
What subsidy do I get for rooftop solar in Bengaluru?
The same as everywhere in Karnataka: ₹30,000 (1kW), ₹60,000 (2kW), ₹78,000 (3kW+) under PM Surya Ghar. Applications go through pmsuryaghar.gov.in.
Who handles net metering in Bengaluru?
BESCOM; India's most experienced urban DISCOM for rooftop solar. Expect roughly 30-45 days for the full process.
Is solar worth it in Bengaluru?
Bengaluru's mild climate is ideal for panels (heat derating is minimal) and BESCOM has processed rooftop applications for a decade. Independent houses and villament roofs do best; apartment towers need the society route.