Off-peak import
Electricity drawn from the grid in off-peak hours
Pakistan · IESCO
IESCO net metering calculator
Check your IESCO green meter bill before it arrives. Enter registers #8, #6 and #5 from your meter and the matching units from your last bill. It works for Islamabad Electric Supply Company customers in Islamabad, Rawalpindi and Attock, on either the old net metering terms or NEPRA's 2026 net billing.
Green meter bill calculator - peak, off-peak and export registers
#8
Peak import
Electricity drawn from the grid in peak hours
Off-peak export
Solar energy sent back to the grid
Previous surplus
Credit carried forward from your last bill
Step by step
How to check your IESCO net metering bill
- 1
Find last month’s figures
Your IESCO bill prints a reading for each register. Those are the “units on your last bill” for off-peak import, peak import and export.
- 2
Read the meter today
Press the scroll button on the green meter until #8, #6 and #5 appear in the corner of the display. Note each running total.
- 3
Pick your scheme
Net metering if your agreement was valid on 9 February 2026, net billing if you connected after that. Enter your rates for a rupee figure.
- 4
Compare with the bill
The calculator gives the energy charge. Your final IESCO bill adds fixed charges, taxes and any fuel adjustment on top.
The 2026 change
Is your IESCO connection on net metering or net billing?
Grandfathered: net metering
IESCO customers who held a valid net metering agreement on 9 February 2026 stay on the old terms until that agreement expires. Exported units cancel imported units one for one.
In the calculator: choose “Net metering” and enter your retail rate as the unit price.
New connections: net billing
New IESCO solar connections fall under NEPRA's Prosumer Regulations 2026. You buy at the retail tariff and sell exports at a separate, lower buyback rate.
In the calculator: choose “Net billing” and enter your off-peak, peak and buyback rates.
The buyback rate is set by NEPRA determination and has changed more than once, so we do not print a figure that might be out of date. Confirm yours with IESCO in writing.
Coverage
Where IESCO supplies electricity
Islamabad Electric Supply Company (IESCO) serves Islamabad, Rawalpindi, Attock, Jhelum and Chakwal. The register numbers and the calculation are the same everywhere in Pakistan.
- Islamabad
- Rawalpindi
- Attock
- Jhelum
- Chakwal
Questions
IESCO net metering questions
How do I calculate my IESCO net metering bill?
For each register, subtract the reading on your last IESCO bill from today's meter reading. Add off-peak (#8) and peak (#6) imports together and subtract them from your export (#5). Under net metering, add any surplus carried forward. A positive answer is credit; a negative one is what you will be billed for.
Does IESCO still offer net metering in 2026?
Not for new applicants. Since NEPRA notified the Prosumer Regulations 2026 on 9 February 2026, new IESCO solar connections are on net billing. Customers with a net metering agreement that was valid on that date keep the old terms until it expires.
What buyback rate does IESCO pay for exported units?
Under net billing, exports are bought at a rate set by NEPRA, well below the retail tariff. It has moved more than once, so check the current figure with IESCO or NEPRA and enter it in the calculator's net billing mode.
What are registers 5, 6 and 8 on my green meter?
Register #8 is off-peak import, #6 is peak import and #5 is off-peak export. Each is a running total since the meter was installed, which is why you subtract the figure from your last bill.
Why doesn't the result match my IESCO bill exactly?
The calculator covers the energy side: units and their price. Your bill also carries fixed charges, meter rent, taxes and fuel price adjustments, which vary month to month.
Other companies
Net metering calculators for every DISCO
Read the full 2026 rules
Who is grandfathered, what the buyback change means for payback, and how to size a system now.