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.
Pakistan Lands Tools | Solar System Sizing Calculator
Estimate generated 17 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.
Related tools
Water Tank Size CalculatorDaily water demand and the tank size for a house, with a suggested underground and overhead split.
Rainwater Harvesting CalculatorWater you can collect from your roof in a year and the tank size you need.
Stirrup Bar Bending CalculatorCutting length, number and weight of stirrups for a beam or column.
Site Expense TrackerRecord construction expenses, compare them to your budget and export to a spreadsheet.