Adjust to match your latest bill's per-unit rate
Leave 0 for on-grid / net-metering system
Appliance
Watts
Qty
Hrs/day
Find the right solar panel size, inverter and battery for your home or shop. This solar power calculator works from your electricity bill or your full appliance load — built for Pakistan's sun hours and grid tariffs.
This solar calculator Pakistan tool estimates system size two ways: from your average monthly electricity bill, or from a full breakdown of your appliance load. Both approaches use Pakistan's typical 5 to 5.5 peak sun hours per day and a realistic system efficiency, so the numbers reflect real-world performance rather than lab conditions.
Add your monthly bill, or list your fans, lights, fridge, AC and motor with their wattage and daily hours.
Choose how much of your bill to offset, and how many hours of battery backup you want during loadshedding.
See recommended panel count, inverter rating, battery bank and an estimated installed cost in PKR.
A solar panel calculator answers "how many panels and what kW system do I need," while a solar load calculator first totals up every appliance's wattage to find your true electrical load. This tool combines both: the appliance mode acts as your solar load calculator, and its output feeds directly into the panel and inverter sizing.
A small home with a few fans, lights and a fridge often needs a 3kW to 5kW system. A household running a 1.5-ton inverter AC and a water motor typically needs 7kW to 10kW. Commercial shops and larger houses can require 10kW and above — this calculator scales automatically as you add appliances or increase your bill amount.
A solar calculator estimates the solar panel size, inverter rating and battery bank you need based on either your monthly electricity bill or your total appliance load, using Pakistan's average of 5 to 5.5 peak sun hours per day.
A solar panel calculator tells you how many panels and what system size in kW you need, while a solar load calculator adds up the wattage of your appliances to find your total electrical load, which then feeds into panel, inverter and battery sizing.
It depends on daily usage. A home consuming 15 to 20 units a day typically needs a 5kW to 7kW system, roughly 9 to 12 panels at 585 watts each.
On-grid systems typically cost PKR 120,000 to 160,000 per kW installed, while hybrid systems with battery backup cost more depending on battery type and capacity.