Solar Rooftop Calculator

Estimate your savings & bill reduction instantly—built for Indian rooftops

Check Your Solar Potential

Use our Solar Rooftop Calculator to find your ideal system size, monthly savings, expected bill reduction and environmental impact. Enter your monthly bill or units, select your city, choose metering mode—and get results right away.

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Why Use Our Solar Rooftop Calculator?

Instant estimate of system size (kW)
See your monthly savings & bill reduction %
Estimate annual generation based on your city
Check CO₂ avoided and trees equivalent
Designed for Indian households in Tier 2 & 3 cities

FAQs

How accurate is the solar rooftop calculator?

It uses city-specific sunlight values and Indian tariff defaults for realistic results. Actual outcomes vary with roof direction, shading and DISCOM rules.

How much roof space do I need?

As a rule of thumb, plan for about ~90 sq ft per kW of solar. Enter your roof area in advanced options to check feasibility.

What inputs do I need?

Just your monthly electricity bill (₹) or units (kWh), your city/region and metering mode. Advanced options include roof size, desired offset and dust factor.