Since 9 February 2026, new solar connections in Pakistan are on net billing: exported units earn about Rs 11 while imported units cost your full tariff. This net billing calculator shows your real monthly benefit and compares it with the old net metering system.
Net Billing Calculator (2026)
Naye net billing rules mein aap ki asli bachat kitni hogi?
Buyback of about Rs 11 per unit applies to new connections from 9 Feb 2026. Raising your self-use share (daytime loads, batteries) has the biggest effect.
How to use the net billing calculator
- Solar units per month: a 5kW system makes roughly 600–700 units a month in most cities. Use the solar panel calculator if you’re unsure.
- Self-use share: the percentage of solar units you use directly while the sun is up. Homes with daytime ACs often reach 60–70%; homes empty during the day may be closer to 40%. Batteries push it higher.
- Grid tariff: your average per-unit rate. Divide your bill amount by units consumed for a rough figure.
- Buyback rate: set to Rs 11 by default, per the 2026 rules. Change it if NEPRA revises the rate.
How the calculation works
- Self-used units save your full tariff: units × self-use % × tariff.
- Exported units earn the buyback rate: units × (100% − self-use %) × buyback rate.
- Old net metering credited every solar unit at roughly your tariff, so it is shown as units × tariff for comparison.
650 solar units a month, 60% self-use, Rs 55 tariff: self-use saves Rs 21,450 and exports earn Rs 2,860, for about Rs 24,300 a month. Under old net metering the same system would have been worth about Rs 35,750, so the change costs around Rs 11,400 a month. Raising self-use to 80% recovers about Rs 5,700 of that.
How to get more from net billing
- Move heavy loads to daytime: pumps, washing, ironing and pre-cooling rooms with ACs before evening.
- Add a battery: store daytime surplus for evening use instead of exporting it at Rs 11.
- Don’t oversize: extra panels that only export add little value now.
Read the full net metering 2026 guide for who is affected and how to apply.
Frequently asked questions
What is net billing in Pakistan?
A system where solar units you export are bought at a fixed buyback rate (about Rs 11 under the 2026 rules), while units you import from the grid are charged at your normal tariff.
Does net billing apply to existing solar users?
NEPRA confirmed that consumers with net metering agreements signed before 9 February 2026 keep their existing terms. Net billing applies to new connections.
Is a hybrid system better under net billing?
Usually yes, if you can afford the battery. Storing daytime solar for evening use saves your full tariff instead of earning Rs 11 per exported unit.
Prices and rules change often. This page was last reviewed on 12 November 2026. Spotted an outdated rate? Tell us and we'll update it.