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Solar System Sizing Calculator

Enter your monthly electricity use to estimate the solar system you need and how long it takes to pay for itself.

Enter your details

units (kWh)
Most of Pakistan gets 5 to 6 hours.
%
Dust, heat, wiring and inverter losses.
watts
Rs.
Rs.

SARZAMEEN Tools | Solar System Sizing Calculator

Estimate generated 18 Oct 2026 | https://www.property.candletrack.pro/public/buildcraft/tool/solar-system-sizing-calculator

Results

Enter your values and press Calculate. Results will appear here and update as you change inputs.

    Planning aid only. It does not replace the judgement of a licensed engineer, architect or electrician. Confirm with a professional before work starts.

    How this calculator works

    • System kW = daily units ÷ (sun hours × (1 − losses)).
    • Each panel needs about 28 sq ft of roof area.
    • Savings assume all your use is covered at your current price per unit.

    Frequently asked questions

    Not if you are on the grid with net metering. Batteries add cost and are for backup during outages.

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