Claire WhitakerBy Claire Whitaker

Updated November 2026

What is net energy metering? It is a billing arrangement that lets a home solar system send its extra electricity to the grid and receive credit for it, which can then offset power you pull from the grid later. In this guide you will learn how the credits are calculated, what your utility typically requires, and which details to confirm before you rely on the system to cut your bill.

How Net Energy Metering Works

A grid-tied solar system produces power whenever the sun is shining, but your household use does not always match that output. Midday, a system may produce more than the house needs. Evenings and cloudy days, the house draws from the grid. Net energy metering tracks both flows on one meter, so the utility only bills you for the net difference over a billing period.

Shopping for one? See our guide: Dominion Energy Net Metering vs Battery Backup: Which Should You Choose?.

In practice, the meter spins forward when you draw power and backward (or records a separate export reading) when you send power out. At the end of the cycle, the utility nets those totals. If you exported more kilowatt-hours than you imported, the surplus usually rolls forward as a credit.

How Credits Are Valued

Not every kilowatt-hour you export is worth the same as one you import. Some utilities credit exported energy at the full retail rate, while others use a lower export rate or time-of-use values. The difference matters a lot. A system that exports heavily at midday may earn less per kWh than you pay for evening power, and that gap can leave you with a smaller net benefit than you expected.

Check whether your credits carry forward month to month, and whether any leftover balance expires or is paid out at year end. These rules vary by utility and by state. For background on how one common method handles annual settlement, see Net Energy Metering True-up: How It Works and What Homeowners Should Check.

What You Need to Qualify

Most utilities require a few basics before they approve interconnection:

  1. A system sized within the utility’s limit, often tied to your past annual usage.
  2. Equipment that meets the utility’s interconnection standards, typically including a certified inverter.
  3. A bidirectional meter, or an upgrade to one, installed by or with the utility.
  4. A signed interconnection agreement before you energize the system.

Requirements differ from one service territory to another. Start with the utility’s solar or distributed generation page, and review Solar Net Metering Requirements: What You Need to Qualify (Step-by-Step) for a fuller checklist.

Net Energy Metering Compared to Other Billing Options

Net energy metering is not the only way utilities compensate solar owners. Some states have moved to net billing, where exports are valued at a lower avoided-cost rate. Others allow virtual or shared arrangements. Knowing which model applies to you helps you estimate payback accurately. The distinctions are covered in Net Metering and Net Billing Difference: What Homeowners Need to Know and Net Metering vs Self-Consumption: Solar Energy Net Metering Explained (2026).

Common Mistakes to Avoid

  • Assuming your export credit equals your retail rate without checking the tariff.
  • Oversizing the system and expecting large year-end payouts that the rules do not provide.
  • Ignoring fixed monthly charges, which still apply even with a credit balance.
  • Starting installation before the interconnection agreement is signed.
  • Forgetting that rules change, so confirming your utility’s current policy is essential.

FAQ

Does net energy metering pay me cash?

Often it does not. Most programs issue bill credits that offset future charges, though some utilities pay out remaining credits at the end of a billing year.

Do I need battery storage for net energy metering?

No. Net energy metering works with standard grid-tied solar. Batteries can be added, but they are not required for the credit system to function.

Can net energy metering rules change?

Yes. States and utilities revise these programs regularly, so check current rules before you install and consult your utility or a licensed installer for guidance on your situation.

Conclusion

Net energy metering lets your solar system offset the power you use by crediting the power you export to the grid. The real value depends on how your utility prices those credits and what its interconnection rules require. Review your tariff carefully, and confirm details with your utility or a qualified installer before you commit.

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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.