The Short Answer
For many households, a PKR 20,000 monthly bill often points toward a system in the rough range of 4kW to 5kW. But that is only a starting point, not a guaranteed answer.
The real size depends on your actual units consumed, city sun hours, daytime usage, AC load, and how much of the generation you will self-consume instead of export.
Why the Bill Alone Is Not Enough
Your electricity bill includes more than energy usage. It can include taxes, fixed charges, fuel adjustments, and other items solar does not erase directly. That is why two homes with the same bill can still need different system sizes.
What Usually Pushes the Size Up
- heavy summer AC use
- low-sun city profile compared with hotter southern cities
- more family members home during the day
- electric pumps, ironing, or other heavier daytime loads
- wanting stronger reduction of the remaining bill
What Can Keep the Size Lower
- moderate daytime demand
- good appliance efficiency
- high-sun city conditions
- willingness to shift more usage into solar hours
What a 20,000-Bill User Should Watch Out For
This bill range is where many people get pushed toward a larger system than they really need. The better move is often to compare:
- a full net-billing system
- a slightly smaller self-consumption-focused setup
Under the current policy environment, that comparison matters more than it used to.
Should You Add Battery at This Bill Level?
Battery is usually not driven by the bill alone. It is driven more by:
- load shedding severity
- need for backup
- how much daytime surplus you want to use later at night
The Smart Way to Size It
If your monthly bill is around PKR 20,000, do not buy based on installer instinct alone. Use the Rafiqy Pakistan Solar Calculator to test your city, load profile, and export pattern first.
Estimate the right solar size for a PKR 20,000 bill using your actual city and usage pattern.
Open the Pakistan Solar Calculator →