What is NEPRA Net Metering Estimator?
The NEPRA Net Metering Estimator calculates your electricity bill under the Net Metering framework established by the National Electric Power Regulatory Authority (NEPRA). When your solar panels produce more electricity than you consume, the surplus is exported to the grid and credited against your bill. This tool helps you estimate the financial benefit of that two-way arrangement by comparing your imported units from WAPDA against the units you export, using the current NEPRA import and export tariff rates.
How to Use NEPRA Net Metering Estimator
- Enter your total monthly electricity consumption from the grid (imported units) in kWh.
- Enter the estimated monthly solar generation and how many units you export back to the grid.
- The tool calculates your net import (import minus export) and applies the current tariff.
- Review your estimated monthly bill with and without net metering to see the savings.
- Adjust the export rate and import rate fields to reflect your DISCO's current tariff schedule.
Common Use Cases
- Solar system owners in Karachi (HESCO/SSGC), Lahore (LESCO), or Islamabad (IESCO) verifying their net metering bill.
- Prospective solar buyers estimating bill savings before committing to a system.
- Energy auditors and solar consultants preparing accurate savings reports.
- Bahria Town and DHA residents on bulk-supply electricity wanting to understand net metering eligibility.
- Businesses with large rooftop solar arrays comparing quarterly net export earnings.
Pro Tips & Best Practices
- The export rate is always lower than the import rate — NEPRA pays at the National Average Power Purchase Price (NAPPP) for surplus generation.
- Net metering is settled quarterly: the first 3 months are credited and the 4th month cash is paid if export exceeds import.
- Ensure your metering equipment is NEPRA-approved and your solar system is certified — uncertified systems are not eligible.