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Solar Calculator — Pakistan
Estimate the system size, installed cost, and payback period for going solar.
📋 Your usage
ℹPanels generate electricity all day — peak sun hours is an engineering figure used for accurate sizing, not the number of hours panels work.
Generates ~12 hrs/day (sunrise–sunset) · 5.2 peak sun hours (effective full-power equivalent)
On-grid (battery-less) system, PKR 90,000–110,000/kW typical
✓ Your solar estimate
Recommended system size
4.8 kW
Estimated panels needed9 panels (550W each)
Estimated system costPKR 480,769
Estimated monthly savingsPKR 28,320
Estimated payback period1.4 years
ℹPayback assumes your solar output offsets units at the top NEPRA slab rate (PKR 47.2/unit) — the standard assumption for a high-usage household with self-consumption or a grandfathered net-metering agreement. Since 9 Feb 2026, new connections fall under NEPRA's net billing rules rather than unit-for-unit net metering, which changes the value of exported units — confirm your actual export rate with your DISCO before relying on this figure. Real-world payback also varies with your consumption pattern and system sizing; treat this as an estimate, not a guarantee.
In-content ad slot (9876543210)
Rate data current as of 14 October 2026
Source: savingsRatePerUnit = pk.nepra's top non-protected slab rate (47.20/unit after NEPRA's Feb 2026 rationalization; was 47.69 before). 47.20 is the marginal (top-slab) rate, i.e. the assumption that solar offsets a household's last and most expensive units first. Actual savings are lower for a household that isn't in the top slab.. Default rates shown are averages and are not an offer of credit. Your actual rate depends on your credit profile, term and lender.