Solar Net Meter: How Net Metering Works & How to Choose One
ET Engineering Team 7 min read · September 1, 2026
Direct answer: a solar net meter measures both the energy you draw from the grid and the energy your solar system exports back. Under net metering, the utility bills you on the difference — so the meter has to run in both directions, or the utility installs a dedicated bidirectional net meter at the service point.
Net metering programs are expanding fast in South Asia (Pakistan 2.9K monthly searches, India 2.4K), the Philippines and beyond. If you're an installer, distributor or utility buyer, understanding how the net meter fits into the scheme decides what you order.
How Net Metering Works
- Your solar array generates power; the inverter feeds your loads first.
- Surplus energy exports to the grid — the meter records it as export.
- At night, you import from the grid — the meter records it as import.
- The utility nets import minus export and bills the difference (or credits it).
What Makes a Meter "Net" or "Bidirectional"
| Feature | Standard meter | Bidirectional / net meter |
|---|---|---|
| Direction | One-way (import only) | Import + export |
| Registers | Single kWh register | Separate import/export registers (or net register) |
| Used for | Residential consumption | Solar/grid-tie installations, net billing |
Our DIN-rail active net metering meter (YEM015SD) is the small footprint option for single-phase solar installs, while the bidirectional electronic meter handles two-way measurement for larger systems. Some utilities accept a bidirectional meter with separate registers; others require a specific net meter model — check your local DISCOM/utility list first.
What to Check Before Buying
- Utility approval list: many programs only accept approved meter models — verify before you order.
- Register configuration: separate import/export registers vs a single net register.
- Communication: RS485 or optical port if the utility reads remotely.
- Accuracy & standards: IEC 62053 compliance is the usual baseline.
- Mounting: DIN rail vs panel — DIN rail suits compact residential installs.
FAQ
Can a normal meter run backwards with solar?
Mechanical meters can run backwards — which is exactly why utilities won't allow it. A net meter records export separately instead of reversing.
Do I need a net meter or a bidirectional meter?
It depends on the utility's scheme. "Net metering" often uses a bidirectional meter with separate registers; "net billing" may need a smart meter. Confirm the approved list in your market.
Can Yomin customize a net meter for my utility program?
Yes — we manufacture under our own brand or OEM for distributors and utilities. Tell us your utility's spec and we'll confirm feasibility, minimum order and lead time.
Factory-Direct Supply
Yomin Electric manufactures net metering, bidirectional, prepaid and smart meters in Zhejiang, China — 95+ countries shipped, every unit tested. Request a quote with your volume and we'll respond within 24 hours.
Need a Quote or Want to Talk Specs?
Our engineers answer within 24 hours with a factory-direct quotation, MOQ and lead time for your exact requirement.