Solar panels in Bangalore
At Bangalore's coordinates, PVGIS gives about 1,403 kWh a year for every kWp of panels, which is 8,417 kWh for a 6 kWp system. The optimal panel tilt at this latitude is 17 degrees, which adds 4.0% over a 35 degree roof. Of the 3 cities we model in India, Bangalore has the lowest yield. For comparison, Delhi reaches 1,552. On our model, the system saves about INR 58,327 in year one and pays back in 5.1 years. Compared with the India reference point on our country page, Bangalore produces 3% less per kWp. In our full list of 41 cities worldwide, Bangalore is 15th. The best month, January, yields 2 times the worst, July.
Month by month in Bangalore
Modelled output of a 6 kWp system at 35° facing south (towards the equator), from PVGIS climate data (PVGIS-ERA5, 2005 to 2023).
| Month | kWh | Share of year |
|---|---|---|
| January | 957 | 11.4% |
| February | 888 | 10.6% |
| March | 875 | 10.4% |
| April | 710 | 8.4% |
| May | 626 | 7.4% |
| June | 507 | 6.0% |
| July | 483 | 5.7% |
| August | 537 | 6.4% |
| September | 618 | 7.3% |
| October | 710 | 8.4% |
| November | 692 | 8.2% |
| December | 815 | 9.7% |
- Best month: January (957 kWh). Weakest: July (483 kWh), a 2x difference.
- January, February, March produce 32.3% of the year; June, July, August produce 18.1%.
- Year-to-year variation: about 251 kWh (3.0%, one standard deviation).
- Sunlight reaching the panels: 1,929 kWh per m² a year.
How Bangalore compares
Bangalore ranks 3 of 3 for yield among the cities we model in India, and 15 of 41 across every country on Solar Figures. Within one country the prices are the same, so a payback gap between these cities comes from sunshine alone.
| City | kWh per kWp / yr | Payback (INR) |
|---|---|---|
| Delhi | 1,552 | 4.6 yrs |
| Mumbai | 1,446 | 5.0 yrs |
| Bangalore | 1,403 | 5.1 yrs |
| National reference point (country page) | 1,446 | 5.0 yrs |
Closest yield abroad: Melbourne (1,382 kWh per kWp), Rome (1,429 kWh per kWp), Naples (1,449 kWh per kWp).
What moves the payback in Bangalore
Power you use yourself is worth the retail price (₹7.00 per kWh); power you export earns ₹7.00. So the share you use at home, by running appliances in daylight or adding a battery, changes the payback. The system cost stays the same in every row (a battery would add to it).
| Used at home | Year-1 savings | Payback |
|---|---|---|
| 20% | ₹58,327 | 5.2 yrs |
| 30% (our default) | ₹58,327 | 5.1 yrs |
| 50% | ₹58,327 | 5.1 yrs |
| 70% | ₹58,327 | 5.0 yrs |
- Net system cost after incentives: ₹282,000 for 6 kWp.
- Incentive modelled: ₹78,000 (PM Surya Ghar (Rs 30,000/kW first 2 kW + Rs 18,000 for 3rd kW, cap Rs 78,000 at >=3 kW)).
- 25-year net savings at our default: ₹1,372,178.
Best panel angle in Bangalore
At latitude 12.97°N, PVGIS finds the fixed tilt and direction that maximise yearly output. Our figures use a common 35° roof; the table shows what the optimum adds.
| Setup | Tilt | Facing | kWh per kWp / yr |
|---|---|---|---|
| Standard roof (used on this page) | 35° | south | 1,403 |
| PVGIS optimum | 17° | south (167°) | 1,459 |
The optimum adds 4% a year over the standard roof in Bangalore. Most of a roof's value comes from its direction: a roof facing away from the equator loses far more than a few degrees of tilt.
See the full India picture on our India solar page, or the national incentives in our India solar guide.
Sources and method
Figures computed 2026-09-25 for a 6 kWp system, 35° tilt, 14% system losses, terrain shading on. An estimate, not a quote: your installer's quote will be exact.
- PVGIS 5.3 PVcalc (PVGIS-ERA5), European Commission JRC (checked 2026-09-25)
- India tariff and incentive inputs (see DATA_SOURCES.md) (checked 2026-06-21)
- India tariff and incentive inputs (see DATA_SOURCES.md) (checked 2026-06-21)
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