Solution: Anti-backflow, Dual-circuit & Wireless Communication —— Acrel ADL200W/ADL400W for Precise Metering in New Energy Power Generation Systems

With the transformation of the global energy structure and the rapid development of new energy technologies, distributed photovoltaic, energy storage, micro-inverter, and AC-coupled systems have gradually become important components of residential and industrial energy consumption. Against this backdrop, efficient power monitoring, precise metering, and intelligent management have become key industry concerns.

Acrel ADL200W and ADL400W series wireless energy meters with external current transformers and dual-circuit design are high-precision intelligent instruments tailored for the above new energy scenarios. Featuring compact size, fast response, and easy installation, these products are fully engineered to address the complexity and diverse demands of modern new energy systems.

Current Situation Analysis: New Challenges for Energy Metering in New Energy Systems

Bidirectional power flow is common in PV grid-connected and energy storage systems, making traditional unidirectional metering unable to accurately record forward (consumption) and reverse (surplus power to grid) energy. Moreover, with the popularity of residential distributed PV, data interoperability and coordinated control between systems, inverters, and Energy Management Systems (EMS) have become critical. Effectively preventing power backflow, regulating power generation, and optimizing battery charge-discharge strategies are central to improving energy efficiency.

Product Application Scenarios: Full Coverage of Key New Energy Links

ADL200W (single-phase) and ADL400W (three-phase four-wire) energy meters are specially designed for the following applications:

• PV Grid-connected Systems: Real-time monitoring of PV generation and grid-connected power, supporting bidirectional metering to accurately record forward consumption and reverse grid-feed energy, enabling effective anti-backflow control.
• Energy Storage Systems: Monitoring electrical parameters during battery charging and discharging, and optimizing charge-discharge strategies through linkage with EMS to enhance the operating efficiency of energy storage systems.
• Micro-inverter & AC-coupled Systems: Suitable for small distributed power generation scenarios, collecting voltage, current, power and other multi-dimensional data in real time to support stable system operation.
• Residential Distributed Energy Management: Supporting data interaction with home energy management systems or inverters via Wi-Fi or LoRa wireless communication, enabling remote monitoring and regulation for truly intelligent power usage.

Core Product Features: Precision, Flexibility & Intelligence

• High-precision Metering: Voltage and current measurement error ±0.5%, active energy accuracy up to Class B or Class 1, meeting strict metering requirements.
• Dual-circuit Design: Supports two independent power monitoring channels, suitable for multi-circuit or complex power distribution scenarios and improving system integration.
• Multiple Communication Methods: Supports RS485 (Modbus-RTU), Wi-Fi (Modbus-TCP/Http) and LoRa communication, flexibly adapting to different network environments and facilitating access to various energy management platforms.
• External Current Transformers: Simplify installation, improve safety, and adapt to diverse on-site wiring requirements.
• Bidirectional Metering Function: Fully records forward and reverse active/reactive energy, providing reliable data for settlement and energy efficiency analysis of distributed energy systems.

Driven by the Energy Internet and carbon neutrality goals, refined, intelligent, and networked power metering has become an inevitable industry trend. With powerful integrated functions, flexible communication methods, and high-precision measurement capabilities, Acrel ADL200W/ADL400W series energy meters provide solid technical support for the stable operation and efficient management of new energy systems.