Estimate your solar journey.
Enter your monthly electricity bill and monthly units. The calculator uses transparent Maharashtra-wide assumptions and produces estimates only.
System size is estimated from monthly consumption using a Maharashtra-wide production assumption. Savings use the supplied bill/unit inputs. A minimum roof-area reference is also shown. Payback uses an internal indicative capex assumption for estimation only and does not display system cost.
Detailed methodology & assumptions
Production assumption: 103 kWh/kW/month. Display cap: 500 kW. Minimum roof-area planning reference: 80 sq ft per kW. System size is estimated as monthly units ÷ 103, subject to a 200 kW display cap. Indicative self-consumption savings are derived from the user's bill and units. For continuity with the previous GreenWavez calculator, the minimum roof-area reference is 64 sq ft per kW. Final layout depends on module dimensions, structure, access, setbacks and roof conditions. Payback uses an internal planning capex of ₹60/W solely to calculate an indicative payback and is not shown as a price. Environmental benefit uses 0.82 kg CO₂e/kWh as a planning assumption; actual factors and methodology should be checked against the latest applicable CEA database.
Estimate disclaimer
This calculator provides indicative estimates for planning. Actual generation, savings, system sizing, payback, subsidy eligibility and environmental impact depend on site conditions, equipment, tariff, consumption pattern, approvals, weather and current rules. No result is a guarantee.
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