Solar panel output calculator

Estimate how much electricity your solar setup can generate in Indian cities.

Your setup

Panel wattage (Wp)

Number of panels

City / location

Advanced assumptions

Peak sun hours / day 4.8 h

Bifacial / rear gain 10%

System losses 20%

System losses include inverter inefficiency, wiring, soiling, temperature derating, and shading. Bifacial gain depends on ground albedo — white/concrete surfaces yield 10–20%, bare soil ~5%.

Results

System capacity

—

kWp DC

Daily output

—

kWh / day

Monthly output

—

kWh / month (avg)

Annual output

—

kWh / year

CO₂ offset

—

kg CO₂ / year

Est. savings

—

₹ / year @ ₹8/kWh

Monthly generation (kWh)

Monthly figures use city-specific seasonal irradiance patterns. Monsoon months (Jun–Sep) show lower output due to cloud cover. Calculations are estimates — actual output depends on panel orientation, tilt, shading, and local microclimate.

Solar irradiance data based on NASA POWER / Global Solar Atlas averages for Indian cities. CO₂ offset uses India grid emission factor of 0.82 kg CO₂/kWh.