Free planning tool

Solar & Power Load Calculator

Estimate an inverter, battery bank and rooftop solar system in minutes. Your entries stay in your browser and are not stored.

Power backup

Inverter & Battery

Enter the appliances you want to operate during a power cut. Change any example wattage to match its nameplate.

Your estimate

Connected load0 W

Suggested inverter0 VA

Battery bank estimate0 V / 0 Ah

Typical 12 V 150 Ah batteries0

Includes a power-factor allowance, 20% capacity margin, 85% conversion efficiency and conservative lead-acid battery utilisation. Motors and compressors can need a higher surge-rated inverter.

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Rooftop solar

On-Grid Solar Size

Use your average monthly electricity consumption to get an initial rooftop system estimate.

Your solar estimate

Suggested system0 kW

Estimated generation0 units/month

Clear roof area0 sq ft

Indicative monthly value₹0/month

Planning estimate using 4.2 peak-sun hours, 78% system performance, about 100 sq ft per kW and an indicative ₹8 per unit. Roof, shade and KSEB feasibility require a site survey.

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Important: Results are indicative planning estimates, not an electrical design, quotation or guarantee. Appliance starting loads, wiring, battery chemistry, roof conditions, shading, KSEB requirements and current scheme eligibility must be checked before purchase.