Pakistan solar sizing guide

Solar System for 1000 Units Bill in Pakistan

Estimate the solar system size, monthly generation, cost range, and payback for a home using around 1000 electricity units per month in Pakistan.

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Reviewed 25 May 2026. Sizing uses Bijli Hisab calculator assumptions and source links. Prices are market estimates, not final installer quotes.

Quick Answer

For a home using around 1000 units per month in Pakistan, Bijli Hisab estimates a practical on-grid solar size of about 8kW. Under clear-roof assumptions, that system may generate around 923 units per month.

This is a planning estimate. Your final system size can change if daytime usage is low, roof shade is high, your sanctioned load is limited, or the installer recommends a different inverter and panel layout.

1000 Units Solar Estimate

InputEstimateWhy it mattersVerify before buying
Monthly units1000 unitsUsed to estimate system size and savingsCheck your last 3-6 bills for seasonal usage
Suggested solar size8kW on-gridBalances generation against monthly consumptionConfirm roof space, shade, and inverter design
Estimated bill basisRs 69,000/monthUsed for payback and savings rangeFinal bill can vary due to taxes and adjustments
Estimated system costRs 1,000,000 - Rs 1,360,000Based on on-grid market rangeCompare equipment models and protections, not price only
Payback estimate1.8 - 2.4 yearsChanges with daytime usage and export creditAsk installer to show self-use vs export assumptions

Recommended Usage Check

Use monthly units from your bill instead of only bill amount.
Estimate how much usage happens during daylight hours.
Check roof shade, panel direction, and available space.
Confirm whether net-metering or prosumer scope is included.

Why the Estimate Can Change

The same monthly units can produce different savings for two homes. If one home uses more electricity during the day, more solar units are self-consumed. If another home exports most daytime generation, payback depends more on current export credit and policy treatment.

Sources and Assumptions

Bijli Hisab separates official references from estimates. Tariff and prosumer rules should be checked against NEPRA and government notifications. Solar generation uses Pakistan-average planning logic and should be refined by a site survey before purchase.

Next Step

Use the live calculator if your usage is not exactly 1000units or if you want to test bill amount, peak/off-peak units, hybrid system cost, roof shade, and daytime usage.

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