Interactive Solar Calculator
Estimate Your Rooftop Solar Potential & Government Subsidy
Enter your monthly power bill and available roof space to calculate recommended system size, monthly unit generation, financial payback, and PM Surya Ghar subsidy.
Grounded in Andhra Pradesh Solar Yields
⚡ Quick Scenario Presets:
Your Electricity Profile
Adjust numbers to see real-time estimates
₹3,500
Typical AP: ₹7.5 - ₹9.0
450 sq ft
Calculated assuming ~120 units per month per 1 kW (avg 4 units/day in Rayalaseema) with 80 sq ft shadow-free area per kW.
Estimated System Recommendation
₹78,000 PM Surya Ghar Subsidy3.6 kW Rooftop Solar System
Monthly Gen.
432 units
Monthly Bill Drop
₹3,456
Annual Savings
₹41,472
Est. Payback
3.5 years
Monthly Consumption Need:438 units/month
Approximate Gross System Cost:₹2,23,200
Direct Central Subsidy (DBT):- ₹78,000
Net Estimated Capital Investment:₹1,45,200*
25-Year Cumulative Savings:₹10,36,800
Annual Green Impact:
4,251 kg CO₂ Avoided (~213 Trees planted)Calculation Guidance
How Our Estimates Work
Clear details on our solar irradiance formula, roof area ratios, and DISCOM net metering.
The calculations are indicative and grounded in Rayalaseema's actual solar insolation data (~4 to 4.5 kWh/sq.m/day) and standard AP electricity tariffs. Exact generation depends on seasonal variation, panel cleanliness, and your rooftop's shadow-free direction.
Zero Obligation Free Site Assessment
Turn These Estimates into Real Monthly Savings
Invite our certified solar technicians to survey your terrace in Rayalaseema and provide an engineering report with guaranteed output metrics.