Pakistan solar calculator
Size a home solar system from your electricity bill — kW, panel count, cost with net metering, and battery backup for load-shedding.
Quick answer: At Rs 60/kWh and 5.4 peak sun hours, a Rs 25,000/month bill needs about 3.5 kW — 6 × 585 W panels on ~12 m². On-grid installs run ~Rs 140–160 per watt, landing near Rs 5,26,500 with a payback around 1.8 years.
Your details
Ballpark, not gospel. Sized at 78% real-world output with the Pakistan sun-hour average — confirm shading, roof structure and your DISCO's net metering rules with a local installer before buying.
Typical Pakistani system sizes by monthly bill
| Monthly bill | System size | Panels (585 W) | Net cost | Payback |
|---|---|---|---|---|
| Rs 15,000 | 2.34 kW | 4 | Rs 3,51,000 | 1.9 years |
| Rs 25,000 | 3.51 kW | 6 | Rs 5,26,500 | 1.8 years |
| Rs 50,000 | 7.02 kW | 12 | Rs 10,53,000 | 1.8 years |
Computed at Rs 60/kWh, 5.4 peak sun hours and Rs 150/W installed with net metering. Run your exact bill above.
Questions people actually ask
Straight answers, no fluff. Then run your own numbers above.
How many solar panels do I need for my home in Pakistan?
At Rs 60/kWh and 5.4 peak sun hours, a Rs 25,000/month bill needs about a 3.5 kW system — roughly 6 × 585 W panels covering ~12 m² of shadow-free roof.
What does solar cost in Pakistan in 2026?
On-grid installs run ~Rs 140–160 per watt. A 6.4 kW system lands around Rs 9,65,250 gross — with no national subsidy, the calculator shows net cost equal to gross.
What is the payback period for solar in Pakistan?
Around 1.8 years at current tariffs. A Rs 25,000/month bill saves Rs 3,00,000 a year against a Rs 5,26,500 net cost — rising grid prices keep shortening payback.
How does net metering work in Pakistan?
A bi-directional meter tracks what you import and export; surplus units offset your bill at the prevailing rate. A net metering licence from your DISCO is required before the system goes live.
Can solar keep my home running during load-shedding?
An on-grid system alone shuts down during outages for safety. Add a hybrid inverter and batteries sized for your critical loads — size the bank on the solar system calculator.
How much roof space does a Pakistani home system need?
About 2 m² per panel including spacing. A 6-panel system needs roughly 12 m² of shadow-free, south-facing roof with no water tanks or structures blocking it.
How much CO₂ does home solar avoid in Pakistan?
About 0.7 kg per kWh. A 3.5 kW system generating ~5,400 kWh a year offsets roughly 3.8 tons of CO₂ annually.
What size inverter do I need for a 3.5 kW system?
Match or slightly exceed the panel capacity — a 4 kW hybrid inverter is the common pairing, with 25% headroom for motor start-up surges on fridges and pumps.
Beating load-shedding needs batteries, not just panels. The solar system calculator sizes your inverter and battery bank. Comparing quotes? The solar cost calculator breaks down cost per watt, and the solar ROI calculator maps your payback year by year.