Solar Subsidy Calculator India

The calculator combines your electricity use with an editable state solar-yield assumption. It recommends a practical system size, applies the central residential subsidy slab and compares estimated generation with the electricity you currently use.

• Gross cost using your chosen cost per kW
• Central subsidy for an eligible residential household
• Monthly and annual bill savings before financing costs
• Simple payback and approximate shadow-free roof area

Enter monthly units when possible. Units are more useful than bill value because bills can include fixed charges, duties, slab rates and arrears that rooftop generation may not offset. If you only know the bill amount, the calculator estimates units using the tariff entered or the editable state default.

• Check the billed units or kWh on a recent bill
• Use a 12-month average if summer and winter use differ
• Replace the default tariff with an effective energy rate if known

An installer quote depends on module and inverter specifications, mounting structure, cabling distance, earthing, approvals and site conditions. The subsidy is also subject to eligibility, process and vendor requirements. Treat this result as a comparison baseline, not a guaranteed price or sanction.