Understanding overcharge in the era of overcharge

In 2024, it will be honored as The first year of the development of China's super charging piles (hereinafter referred to as "overcharging").

stay While the state strongly supports the construction of infrastructure charging facilities The government is also actively promoting the construction of overcharge. Guangzhou in 2022 Hainan proposed to build a "super city" in March 2023 It is proposed to build "Super Charged Island" in Shenzhen in June 2023 Put forward the idea of building a "city of overcharge"

The "era of overcharging" has come, so what is overcharging? What are the applicable scenarios, development trends and limitations of overcharge? For this reason, the author visited Shenzhen Epulloch Technology Co., Ltd. (hereinafter referred to as "EN+Technology") and discussed with Mr. Zhang Zhengjun, senior product manager of the company.

The so-called "overcharge" has not yet been officially defined in the market. In terms of measurement standards, the industry is divided according to the size of charging power. Generally, charging power of 50kW and below is called slow charging pile, 50-150kW is fast charging pile, and above 150kW is overcharge pile; In addition, 150-350kW is referred to as Level I overcharge and 350kW or above is referred to as Level II overcharge. So, the products currently sold by EN+Technology to the outside world include overcharged products from 240kW to 480kW; 480kW overcharge Manager Zhang introduced the products that have attracted much attention in industry exhibitions in recent two years.

The super charging post is generally a split charging post, which is composed of a main cabinet and multiple charging terminals. For example, for the EN+DC480kW split charging post, one power main cabinet is equipped with up to 12 charging terminals, which can meet the requirements of 1 The maximum 480kW of trolley can meet the requirements of fast power compensation, and can also meet the requirements of up to 12 The 40 kW power supplement demand of the trolley determines that it has a better application scenario than the general integrated fast charging pile, which is also the reason why more and more new stations choose the super full body pile.

Figure: 480kW split charging pile during EN+technology exhibition

For the development and market popularization of overcharged products, policy driven, battery technology development and user demand are three factors that must be considered.

first, The government's support policy and service support are the application and promotion of the overcharge products One of the important driving forces.

Taking Shenzhen as an example, Shenzhen has always been among the top cities in China in terms of new energy vehicle ownership and charging pile ownership. In December 2023, Shenzhen successively issued the Special Plan for Charging Facilities of New Energy Vehicles in Shenzhen, the Special Plan for Overcharging Facilities of New Energy Vehicles in Shenzhen (2023-2025) and other relevant policies to promote the implementation of overcharging. By the end of 2023, 161 overcharging stations had been completed. According to the plan, Shenzhen strives to build no less than 300 public overcharging stations by the end of March 2024; By 2025, 300 overcharging stations will be built, and the ratio of overcharging stations to gas stations will reach 1:1, initially building a world-class "overcharging city". Determination of urban development The policy impetus of the government directly determines the results. At present, the number of public charging piles installed in China ranks top, including Guangdong Province, Zhejiang Province, Jiangsu Province, Shanghai, Hubei Province and Beijing, among which overcharging, as a subdivision of DC piles, also has strong overlap Sex.

The second is the development of battery technology, that is, how many vehicles can accept overcharge service to meet customer charging needs.

Manager Zhang of EN+Technology introduced that at present, the number of domestic electric passenger vehicles with batteries above 800V is relatively small, but many electric vehicle manufacturers have made a good layout in advance, including the launch of corresponding models and the layout of overcharge stations, such as Tesla, Ideal, Polar Energy, GAC Energy, Xiaopeng, Weilai, etc. They have become Another in the operation lineup of charging stations in China Important camp.

The third is user demand, that is, how many users are willing to pay for "overcharge".

This is also the key element for EN+Technology to remind customers when consulting customers. The high cost and fast charging experience of overcharged machines will inevitably lead to higher charging costs than ordinary fast charging piles and slow charging piles. At present, the main users of domestic overcharge, customer portraits have the characteristics of high-end car owners (paying more attention to the charging experience), rapid charging demand (emergency demand), and focusing on economically developed cities (the overall economic capacity of the city is strong). Therefore, the so-called overcharge layout, viewed from the whole market, is a certain proportion and adaptation with slow charging and fast charging Sex, rather than the overall popularity of a single product.

As for the limited factors in the landing application of overcharge, Manager Zhang of EN+Technology said that the capacity of the power grid, the cost of investment and construction, the location of the station and the audience should be carefully considered.

Disclaimer: There are risks in the market, so you should be careful! This article is for reference only, not for sale basis.

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