Development and Application of Electric Vehicle V2G Technology

Vehicle-to-grid (V2G) refers to the two-way flow of energy between electric vehicles and charging stations. In addition to providing complete control over the charging process and load balancing, V2G can also feed energy back into the grid during peak hours and charge during off-peak hours, thereby reducing costs.

As electric vehicles (EVs) gain rapid traction globally, V2G technology is developing at a rapid pace. Governments worldwide are actively promoting V2G initiatives, while advancements in smart grid infrastructure and bidirectional charging solutions enable EVs to function as mobile energy assets. Countries such as the United States, the United Kingdom, Germany, and Japan are making significant investments in V2G infrastructure and integrating it with renewable energy sources to build more resilient and efficient power systems.
According to data from Towards Automotive analysts, the vehicle-to-grid (V2G) market size was $5.3 billion in 2024 and is projected to reach $78.8 billion by 2034, with a compound annual growth rate (CAGR) of 31.1% from 2024 to 2034.

Therefore, converters specifically adapted to V2G technology are required. Maxwell keeps pace with the industry and has developed the MXB100022 specifically for V2G.
Ultra-wide voltage compatibility: 
AC side (grid-connected) supports 260V to 530V input to accommodate voltage fluctuations in different regions; DC side supports 150V to 1000V, compatible with mainstream 400V models and high-voltage 800V models.
Off-grid power supply: 
Features an independent off-grid (Off-grid) operating mode, capable of outputting stable 380V AC power. During grid outages, it provides emergency power supply for critical equipment. 
Low power consumption: 
At output power levels between 20% and 50%, the output factor (rectified) ≥97%; At output power between 50% and 100%, the output factor (rectified) is ≥99%. The module presents nearly pure resistive load to the grid, significantly reducing reactive power losses.
High-efficiency conversion: 
Full-load conversion efficiency >95.5%, ensuring minimal energy loss per kilowatt-hour in V2G charging/discharging energy cycles.
Strong environmental adaptability: 
Operating temperature range: -40°C to +75°C, enabling stable operation in extreme cold and high-temperature environments across most regions. The derating design starting at 55°C ensures the device's long-term reliability under sustained high temperatures. Additionally, it supports up to 95% humidity (no condensation), making it suitable for harsh environments such as high humidity and coastal areas.