Interactive Solar Sizing Engine
Solar Savings & System Sizing Calculator
Use our interactive estimator calibrated for Central India’s solar irradiance levels. Adjust your average monthly bill to see your recommended kW capacity, rooftop area requirement, and indicative 25-year financial savings.
Interactive Calculator
Solar Savings & System Sizing Calculator
Estimate your system capacity (kW), annual generation, and electricity bill savings in Central MP.
Calibrated for MP Solar Irradiance
₹4,500
₹1,000 / mo₹35,000 / mo
Calibrated at 4.1 units/day per kW for MP solar irradiance conditions.
Recommended Capacity
5 kW System
Est. Roof Space
~425 sq. ft.
Annual Savings
₹51,060
Year-1 estimated
Monthly Output
~600 units
~7400 units/yr
Subsidy Status
Up to ₹78,000
PM Surya Ghar
Est. Payback
~5.7 Years
25-Year warranty
CO₂ Offset / Year~6.1 Tonnes
Trees Equiv.~92 Trees/yr
How We Calculate Your Solar Potential
1. Daily Generation FactorIn Narmadapuram and Madhya Pradesh, a 1 kW grid-tied solar system produces an average of 4.0 to 4.2 units (kWh) of electricity per day across 300+ sunny days annually (~1,480 units/year per kW).
2. Rooftop Area RequirementModern high-efficiency 540W+ Mono-PERC / TopCon photovoltaic modules require approximately 80 to 90 sq. ft. of shadow-free rooftop space per kW of capacity.
3. Payback & ROI FormulaPayback period is calculated by dividing the estimated gross system cost by your projected annual electricity bill savings. Central Indian consumers typically break even in 3.2 to 4.5 years.