PVGIS · SolarMapped
Solar potential in India
These figures are the unweighted mean of the city locations listed below, not a national average. Two urban points do not represent an entire country, its roofs or its solar installations.
Explore on the solar map ↗Sampled-city benchmark
PV output is estimated electricity from 1 kWp of installed solar panels. Irradiation is sunlight energy received per square meter on the optimally tilted panel plane; it is not electricity.
For a 5 kWp system, multiply the electricity values by five. This simple scaling does not account for roof-specific shading or equipment constraints.
Range across these cities: 1,525–1,623kWh/kWp/year. Panel tilt and direction are location-specific; see each city.
Monthly solar irradiation and PV output
Highest-output month: March · 160.9kWh/kWp/month. Lowest-output month: July · 84.1kWh/kWp/month.
The chart and table use the mean of the listed cities for each month.
| Month | Estimated PV output (kWh/kWp/month) | Solar irradiation (kWh/m²/month) |
|---|---|---|
| January | 153.9 | 197.8 |
| February | 146 | 191.7 |
| March | 160.9 | 218 |
| April | 150.1 | 207.4 |
| May | 140.1 | 194.8 |
| June | 105.4 | 142.7 |
| July | 84.1 | 112 |
| August | 92.4 | 121.9 |
| September | 107.2 | 142.3 |
| October | 142 | 190.2 |
| November | 142.9 | 189.3 |
| December | 149.2 | 192.7 |
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Data and methodology
PVGIS 5.3 (European Commission Joint Research Centre), crystalline silicon, fixed free-standing installation, 1 kWp, 14% system losses, equator-facing panels with optimized tilt and the terrain horizon. Long-term climate estimates are not a forecast or a roof survey. Nearby buildings, trees, roof constraints, snow and local conditions can change actual output.
- New Delhi — Reference coordinates: 28.61, 77.21; Climate dataset / years: PVGIS-ERA5 / 2005–2023; Data retrieved: .
- Mumbai — Reference coordinates: 19.08, 72.88; Climate dataset / years: PVGIS-ERA5 / 2005–2023; Data retrieved: .
PVGIS methodology · Sources and assumptions (English) · Download the underlying data (JSON)