Solar Export Calculator
Calculate the credit you earn from exporting surplus solar energy.
About the Solar Export Calculator
The Solar Export Calculator gives you a clear, instant answer to a question that usually means digging through tables or guessing — enter your numbers and read the result straight away.
Net metering lets a solar homeowner feed surplus electricity to the grid and offset it against units consumed at night or on cloudy days. This Solar Export Calculator estimates what net metering is worth to you: your offset, your net bill and the effective saving on your solar investment.
The calculation compares your solar generation with your consumption across day and night. Surplus daytime units are exported and credited; night-time units are drawn from the grid and charged — the difference is your net bill.
In Pakistan, net metering is available to residential and commercial consumers with approved systems, and the export credit appears on the same bill. Because exported units are credited, the value of net metering depends on how well your generation matches your daytime consumption.
Sizing for net metering is different from sizing for backup: you want generation matched to total consumption rather than peak load. Use this tool to model your export credit and confirm the investment case before applying with your DISCO.
For the most accurate outcome from the Solar Export Calculator, keep the editable rates and defaults up to date with current figures before reading the result.
How to estimate net metering savings
- 1
Enter your system size in kW and your average monthly consumption.
- 2
Enter the units you expect to export versus consume from the grid, if asked.
- 3
Read your net bill and monthly saving, updated live.
- 4
Use the result when applying for net metering with your DISCO.
Frequently Asked Questions
What is the solar export rate in Pakistan?
Net-metering exports are credited at the NEPRA-approved rate — around Rs 21/kWh in recent determinations, lower than the retail tariff you avoid by self-consuming.
How does net metering work in Pakistan?
Your bi-directional meter records units you export and import. Exported units are credited against imported units on the same bill, so you pay only for the net difference.
Is net metering worth it?
For most households, yes — it turns surplus daytime generation into a bill credit, shortening solar payback. The value depends on matching generation to consumption, which this calculator models.