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New energy vehicle charging "on-demand distribution" Shenzhen sample: 2018 will enter the "big outbreak" first year?
The nationwide construction of charging stations is moving forward rapidly, but challenges such as inefficient layouts and outdated designs are becoming more apparent. Yu Dexiang, chairman of Special Call New Energy Co., Ltd., recently stated that 70% of current charging stations may be phased out in the future due to technological upgrades and evolving market demands. The need for single-pile units to be recalled or upgraded is a complex task, comparable to rebuilding entire structures.
In December 2017, Shenzhen launched the "Technical Requirements for Flexible Charge Reactors for Electric Vehicles," marking China's first local standard for flexible charging technology. This initiative set the stage for more advanced and adaptable charging solutions. On January 7, 2018, Chengdu introduced its first smart flexible charging station, capable of delivering up to 450kW, allowing buses to charge in just 8 minutes.
Liu Yongdong, deputy director of the China Electricity Council’s Standardization Center, noted that traditional charging methods involved setting up individual stations, which became inefficient as the electric vehicle industry expanded. The market now favors centralized, high-power charging solutions. Many service providers are shifting their focus toward these more efficient models.
By 2018, finding a more effective and sustainable charging model became a critical challenge for local governments. Flexible charging systems address concerns like long charging times and varying power needs, offering a promising solution for both authorities and operators.
Shenzhen has taken the lead with its flexible charging reactor system, which dynamically allocates power based on each vehicle's requirements. Li Zhigang, a chief engineer at Aoxun, explained that this approach maximizes equipment utilization by pooling power resources. For example, a single 800 kW system can support 16 different vehicles simultaneously, ensuring each gets the right amount of power.
At the Aotexun Power Building in Shenzhen, reporters saw how the system works in practice. Each charging station occupies about 20 parking spaces, with dedicated areas for power distribution, the main charging unit, and terminals. This setup allows for greater flexibility and efficiency compared to fixed-power stations.
Li added that while current charging guns can deliver up to 187.5 kW, future advancements will allow for even higher power outputs without requiring major hardware changes. This adaptability ensures that the infrastructure remains relevant as new vehicle technologies emerge.
Despite progress, challenges remain in scaling up these systems. Yuan Gang, ADT’s deputy general manager, emphasized the need for better evaluation metrics beyond just the number of charging piles. Measuring the number of vehicles served could significantly boost the adoption of new technologies.
Looking ahead, high-power charging is expected to play a key role in the future of electric vehicles. With research showing that 500 km range and 15-minute charging times could make EVs more appealing, many companies are investing in faster, more efficient solutions. Foreign countries have already made strides in this area, using advanced cooling techniques to handle higher currents.
While high-power charging gains traction, it won't replace existing infrastructure entirely. Liu Yongdong highlighted that different regions and users will still require varied charging options. Compatibility with current systems will remain an important consideration in future standards.
Experts also suggest that increasing voltage to 1000V could reduce energy consumption significantly, urging manufacturers to prepare for flexible, multi-power charging solutions. The goal is to make charging as quick and convenient as refueling a gasoline car, potentially transforming charging stations into gas station-like hubs.
As the electric vehicle market continues to grow, the demand for smarter, more efficient charging solutions will only increase. The journey toward a seamless, fast-charging future is just beginning.