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Solar Bi-directional Meters Manufacturer.

High-performance smart metering infrastructure for global utility networks and sustainable energy grids.

Product
Narrative

Technical Innovation & Quality Heritage

YTL’s Solar Bi-directional Meters are the essential link for renewable energy integration. As a forward-thinking manufacturer, Zhejiang Yongtailong has designed these meters to precisely track both "Imported" energy from the grid and "Exported" energy from solar panels. Featuring four-quadrant measurement and high resistance to inverter-generated harmonics, these smart meters provide the accurate data required for Net Metering and feed-in tariff billing. Whether for a small residential rooftop or a large industrial solar farm, our bi-directional meters offer integrated communication options like Wi-Fi or RS485, allowing users to visualize their self-consumption and grid-contribution in real-time through dedicated energy management platforms.

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Technical Datasheet

Technical CategoryBi-directional Meter Specs
Measurement ModeBi-directional Active/Reactive (Import & Export)
Accuracy ClassClass 1.0 (IEC 62053-21)
Harmonic FilteringOptimized for high-frequency inverter noise
Data LoggingDaily/Monthly Import & Export Profiles
CommunicationRS485, Wi-Fi, NB-IoT, MQTT Support

Product Application

  • Residential Net Metering
  • Battery Storage Management
  • Solar Farm Revenue Settlement

Residential Net Metering

Installed at the grid connection point of homes with solar PV systems, this meter is the accountant for the household’s energy economy. It separately records the energy bought from the utility at night and the excess solar power sold back to the grid during the day. This enables homeowners to participate in "Net Metering" programs where they only pay for the net difference, significantly improving the return on investment for their solar installation and providing clear data to optimize their daily appliance usage patterns.

Battery Storage Management

In smart homes with battery energy storage (BESS), the bi-directional meter acts as the primary sensor for the energy management system. It monitors the real-time flow to ensure the battery is charged using excess solar rather than expensive grid power. By providing high-speed data on "Export" and "Import," the meter allows the inverter to balance the home's loads perfectly, achieving maximum energy independence and ensuring the battery is utilized in the most cost-effective way possible.

Solar Farm Revenue Settlement

For industrial-scale solar arrays, these meters provide the high-precision revenue-grade data needed for financial settlements with the grid operator. They accurately measure the bulk "Export" of clean energy while accounting for the small amount of "Import" power used by the plant’s auxiliary systems and nighttime monitoring equipment. Their robust anti-tamper features and encrypted data transmission ensure that the generation reports are tamper-proof, providing a reliable basis for receiving government green energy subsidies and carbon credits.

Product Advantages

True Four-Quadrant Measurement

Accurately tracks active and reactive power in both directions, ensuring fair billing for solar users and grid operators alike, regardless of the load type.

Inverter Noise Immunity

Specifically engineered to filter out the high-frequency switching noise typical of solar inverters, maintaining high accuracy where standard meters might fail.

Smart Energy Visualization

Supports seamless integration with mobile apps, giving users an instant view of their solar yield versus home consumption for better energy-saving decisions.

Frequently Asked Questions

  • Q: Why does my meter show a negative sign or an arrow?

    A: An arrow pointing away from the house (or a negative sign) indicates that your solar panels are producing more power than you are using, and you are currently exporting to the grid.

  • Q: Can it be used for both 1-phase and 3-phase solar?

    A: Yes, we offer both single-phase and three-phase bi-directional models to suit different residential and commercial solar installations.

  • Q: Does the "Import" and "Export" cancel each other out?

    A: No, the meter keeps separate, independent registers for both directions. This allows the utility to apply different rates for buying and selling power.

  • Q: Is it compatible with my solar monitoring app?

    A: If your app supports Modbus-RTU or MQTT via Wi-Fi, our meter can provide the raw data needed for your energy dashboard.

  • Q: Do I need a special installation for this?

    A: It installs exactly like a standard meter at the main entry point of the house. No additional wiring to the solar panels is required for basic net metering.

Welcome To A National High-tech Enterprise

Established in 2000, Zhejiang Yongtailong Electronic Co., Ltd. is located in Tongxiang. As a professional Solar Bi-directional Meters manufacturers and Solar Bi-directional Meters suppliers in China , YTL designs and produces electronic energy meters which are cost-efficient and ideal for the use in solutions for AMR/AMI at residential as well as industrial applications.YTL was one of the first companies in the domestic market with which had an internal R&D department as well as international sales business. Since our foundation in 2000 we have grown to a manufacturer which complies and meet to many specifications from our national and international partners. At present our export volume makes us a leading company for technology and product export to more than 60 countries throughout the world.YTL is devoted to develop and design all types of electronic energy meters, concentrators and solution applications. With a combined design of the special accessories, we have successfully developed series of competitive products of small size, multifunction, low power consumption and excellent performance. We offer a one-to-one service to our partners. With annually over 68 projects that are successfully finished and holding over 500 patents of design rights, we are also advanced in the technology and patents of current sampling.

  • 2000

    Established In

  • 500+

    Employees

  • 60+

    Export
    Countries

  • 500+

    Patent

  • 10million+

    sets per year

YTL Honor

  • MID
  • KEMA
  • DLMS
  • IEC
  • KEMA
  • SGS

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