Claire WhitakerBy Claire Whitaker

Updated November 2026

What is net metering Meralco? It is the arrangement that lets a home solar owner connected to Meralco’s distribution network send surplus electricity to the grid and receive credit for it on future bills. This guide explains how the setup works, what you need in place, and what to check so your credits show up correctly.

How Net Metering Works With Meralco

Your rooftop system generates power during daylight. Electricity your home uses immediately comes from the panels first, and any surplus flows out through your meter to Meralco’s lines. The meter records both directions, so the utility can track how much you imported from the grid and how much you exported.

Shopping for one? See our guide: Net Metering in Virginia vs Virginia Community Solar: Which Should You Choose?.

In a typical month, the exported kilowatt-hours are netted against the kilowatt-hours you drew from the grid. If you export more than you import over a billing period, the excess can carry forward as credit. If you import more, you pay for the difference only. Rules on carry-forward and cash settlement are set by the Energy Regulatory Commission and can change, so confirm the current terms with Meralco before you rely on a specific number.

What You Need Before Connecting

Net metering is not automatic. Your system has to be approved and metered correctly. Gather these items before you apply:

  1. Your Meralco account number and the name on the account, matching the property owner.
  2. A system design showing panel count, inverter rating and total DC capacity in kilowatts-peak.
  3. A licensed installer’s certification and inspection documents for the wiring.
  4. A bidirectional or net meter installed by or coordinated with Meralco.
  5. Proof that the system is grid-tied with anti-islanding protection, so it shuts down during outages.

Reading Your Bill After Connection

Once the system is energized, your bill changes shape. Look for separate lines showing energy imported from the grid, energy exported, and any net balance. A simple way to check accuracy is to compare the exported figure against your inverter’s monitoring app for the same period. Small differences are normal because meter reading dates rarely match calendar months, but large gaps are worth a call to Meralco.

For a line-by-line walkthrough, see Sample Meralco Bill with Net Metering: How to Read Each Line (Step by Step).

Common Mistakes to Avoid

  • Sizing the system far above your daytime use, which leaves large exports you may not be able to fully credit.
  • Assuming credits carry forward indefinitely without checking the current rules.
  • Operating the system before the meter change and inspection are complete.
  • Ignoring the monthly statement, which is the fastest way to spot a metering fault.
  • Expecting the system to run during a blackout. Grid-tied systems shut down for safety.

A reliable monitoring device helps you verify exports against your bill, which matters most in the first few billing cycles.

  • A Shelly 3EM energy meter gives a clear per-phase view of import and export, which makes reconciling your statement easier. View on Amazon
  • A Sense Home Energy Monitor tracks household consumption by circuit, helping you see when your appliances draw the most power against solar output. View on Amazon

FAQ

Is net metering the same as getting paid for every unit I export?

Not necessarily. Exports are usually netted against your consumption over the billing period, so the benefit depends on how much you import too. Confirm the current settlement terms with Meralco.

Do I need a special meter for net metering?

Yes, a meter capable of recording both imported and exported energy is required. Meralco coordinates the installation or approval of this meter.

Will my solar system keep working during a power outage?

Typically no. Grid-tied systems disconnect during outages to protect utility workers. Backup power requires a separate battery-based setup.

Conclusion

Net metering with Meralco lets your rooftop surplus offset what you buy from the grid, provided the system is approved and the meter is set up correctly. Gather your documents early, verify your first bills against your inverter data, and recheck the current ERC rules before sizing your system. A licensed installer or Meralco’s customer office can confirm the details for your property.

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Claire Whitaker

About Claire Whitaker

Claire Whitaker is part of our editorial team and reviews and edits our home solar guides, checking product details against manufacturer specifications and owner feedback.