On-grid · off-grid · hybrid
Solar PV sizing & payback calculator
Size from monthly units, sun hours, appliance energy, roof area and backup need. Adjust tariff, panel wattage and confirmed subsidy.
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System recommendation
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Calculate to see kW, modules, inverter, battery, cost, savings, payback and CO₂ reduction.
Results are educational preliminary estimates, not a quotation, guarantee or electrical/thermal design. Costs and performance vary with location, weather, shade, water quality, equipment, GST, transport, installation, subsidy eligibility, tariff and maintenance. Obtain a site survey and signed proposal.