0,38 Yuan/Wh: In der stark konkurrenzintensiven Energiespeicherbranche taucht plötzlich ein "Preisjäger" auf.

01

“Never go down, lifetime warranty. The price on the AC side is $0.38 per Wh. The same price for household storage, industrial and commercial storage, and large-scale storage.” On August 13th, at the opening day of the 4th EESA Energy Storage Exhibition, the above slogan was prominently displayed at the booth of WoCheng New Energy.

Once the lowest price in the whole exhibition ($0.38 per Wh, including tax) came out, it not only shocked the industry but also represented that the price bottom line of the energy storage industry had been broken again.

It is worth noting that during the 3rd EESA Energy Storage Exhibition in September 2024, CL Electric launched the Aqua - E series of industrial and commercial energy storage products, shouting the slogan of taking them home at $0.598 per Wh, leading the energy storage industry into the $0.5 era. At that time, the average price of industrial and commercial energy storage products in the industry was about $0.7 per Wh. Many people in the market questioned whether the price of $0.598 was a gimmick and whether there was “cutting corners” in materials. CL Electric's answer at that time was - no. Later, WoCheng New Energy was the first to quote the price of industrial and commercial energy storage at $0.58 per Wh.

Now, entering the $0.3 era, last year's low price seems “expensive” in contrast.

It is reported that the product launched by WoCheng New Energy this time is called the “Stardust” system. The innovation of this system lies in burying the energy storage equipment 2 meters underground, using the constant - temperature characteristic of the soil and phase - change heat dissipation technology to reduce the equipment temperature, reducing the use of traditional heat dissipation systems such as air conditioners, and thus reducing costs.

In addition, according to the company, underground installation can also save ground space and avoid the impact of traditional energy storage systems on the environment, making it suitable for densely populated urban areas and places with aesthetic requirements.

According to WoCheng New Energy's introduction, in terms of application scenarios, WoCheng New Energy's underground energy storage system is suitable for various scenarios such as household storage, industrial and commercial storage, and large - scale storage. The company even shouted marketing slogans such as “The same price for household storage, industrial and commercial storage, and large - scale storage” and “Never go down, lifetime warranty” (lifetime means 15 years).

Similarly, this low price also triggered many people's doubts about the product on the spot.

Data shows that in the first half of 2025, the average quotation of energy storage cells was $0.289 per Wh. The cost of cells generally accounts for 50% - 60% of the cost of the entire energy storage system. Therefore, it can be estimated that the minimum cost of the energy storage system is $0.482 per Wh.

Moreover, with the recent sharp rise in the price of lithium carbonate, the price of energy storage cells has also increased. Therefore, the cost of the energy storage system may further increase in the future.

Xu Yichen, the chairman of WoCheng New Energy, responded to the price doubts on the spot, “Technological innovation brings cost reduction. $0.38 per Wh is not price involution but a technological revolution.”

According to an interview with relevant media, Xu Yichen said that the product launched by WoCheng New Energy this time is an underground energy storage system. Compared with the previous traditional energy storage systems, the underground system does not require containers, air conditioners, and fire - fighting equipment, which can save more than 100,000 yuan in costs.

Surprisingly, Xu Yichen said that this move still enables the gross profit to reach an amazing 15% - 20%.

02

For the underground energy storage product that only passed the patent in July this year, many industry insiders have raised questions - how to solve the heat dissipation problem?

WoCheng New Energy said that one of the core technologies of the “Stardust” system is phase - change heat dissipation technology. This technology uses a phase - change liquid with a boiling point of 33°C to form a phase - change cycle inside the energy storage equipment, absorbing and releasing heat during the phase - change process, thus achieving efficient heat dissipation. This technology solves the heat dissipation problem of the underground energy storage system and ensures the stable operation of the equipment in a high - temperature environment.

However, many professionals still doubt whether this technology can really achieve such an effect. Even if this phase - change material can really absorb heat, how can it dissipate heat? And how to deal with the underground corrosion problem?

Therefore, although WoCheng New Energy uses phase - change heat dissipation technology to reduce the fire risk, underground installation may increase the difficulty of rescue. Although WoCheng New Energy said that the system has been applied in more than 60 projects, large - scale promotion still needs to be verified.

In addition, this company that has attracted a lot of attention and is determined to be a “price butcher” is actually very young.

Data shows that WoCheng New Energy was established in August 2022. Two natural person shareholders, He Aohang and Xu Yuping, hold 85% and 15% of the shares respectively. He Aohang also holds a controlling stake in an Internet company - Huangshang (Zhejiang) Network Technology Development Co., Ltd. The two production lines of energy storage module PACK of this company were put into production in the middle of last year. The designed production capacity of the two production lines is 2GWh. At present, WoCheng New Energy is the only energy storage manufacturer in the country to install this PACK production line.

According to its public information, the company plans to invest 20 billion yuan in the next three years to promote the construction of underground energy storage projects and plans to promote the “Stardust” system nationwide, especially in cities and cold regions. In addition, WoCheng New Energy also plans to cooperate with local governments and energy enterprises to jointly build underground energy storage projects and promote the development of virtual power plants.

It is understood that the world's first buried energy storage project with a capacity of 150KW/522KWh built by WoCheng New Energy for Taisheng Industrial Co., Ltd. was officially launched in early July. Currently, several other projects are also in progress.

According to the exhibition news, WoCheng New Energy will hold a global EMC intermediary conference and a regional agent conference on August 30th, and shout the slogan “The single - charge and single - discharge installed capacity nationwide is at least three times higher than that of competitors, and the intermediary fee is far ahead. We mainly focus on pampering intermediaries.”

Overall, whether WoCheng New Energy's underground energy storage system can become a new solution for the energy storage industry remains to be tested. Whether this path can succeed is still unknown.

This article is from the WeChat public account “Foreseeing Energy”, author: Foreseeing Energy, published by 36Kr with authorization.