Electromagnetic Compatibility (EMC) of household energy storage systems refers to their ability to work normally in the home’s electromagnetic environment without generating excessive electromagnetic interference (EMI) that affects other devices, while resisting external electromagnetic disturbances. This is regulated by standards such as IEC 61000-6, CE-EMC, and GB/T 34131-2023, which cover two key aspects: electromagnetic emission and electromagnetic immunity, both critical for residential safety and equipment reliability.

To control electromagnetic emission, the system’s core components—such as the Power Conditioning System (PCS) and Battery Management System (BMS)—are designed with shielding and filtering measures. Metal shielding covers and conductive foam reduce radiation emission, while common-mode inductors and Y-capacitors filter out conductive interference from power lines. This prevents interference with household electronics like Wi-Fi routers, televisions, and even medical devices such as home ventilators. For electromagnetic immunity, the system is tested to withstand transient disturbances like electrostatic discharge, electrical fast transient pulses, and surges caused by thunderstorms or grid fluctuations, ensuring it does not malfunction, shut down unexpectedly, or lose communication. Compliance with EMC standards not only avoids regulatory penalties and product recalls but also protects residents in densely populated areas where multiple electronic devices operate simultaneously, maintaining a safe and stable home electromagnetic environment.