Home / Solar Calculator

Solar calculator for Pakistan

Measure your roof, enter your bill and choose your backup. See how many panels fit, which inverter and battery you need, the price range and your monthly saving.

  1. 1 Your roof
  2. 2 Your bill
  3. 3 Backup
  4. 4 Your estimate

How big is your roof?

Measure it on the satellite map, or enter your plot or roof size.

How the estimate is worked out

Transparent maths, using average 2026 Pakistani market rates. Your final quote comes after a free site survey.

Roof space

We keep about 65% of the roof for panels, leaving room for tanks, stairs, shade and walkways. Each 585 W panel needs about 2.6 m².

65% usable

Sunlight

1 kW of panels makes about 135 units a month in Karachi, less in the north. The calculator uses your city’s figure.

115 to 145 units / kW

Battery

Backup hours × the load you want to keep running, divided by usable battery capacity, rounded up to 5.12 kWh lithium modules.

LiFePO4 modules

Savings

Units you use yourself save the full grid tariff. Extra units exported under net billing earn the lower buyback rate.

NEPRA 2026 rules

Calculator questions

It gives a first estimate that is usually close to the final design for standard homes. Roof shape, shading, brands and wiring distances can change the final figure, which we confirm on a free site survey.

Your roof area limits how many panels fit. Our engineers can often add more with raised structures, carports or a second roof level.

585 W monocrystalline panels, a common size in Pakistan in 2026. We quote other sizes on request.

No. We only use your details to prepare your estimate and contact you about it.

Want an engineer to check the numbers?

Book a free site survey and we will turn this estimate into a detailed proposal for your roof.

Prefer to talk? Call 0321 8209843 or WhatsApp us.