A public fire test for the first time in the world, an international authoritative certification certificate, and the highest commitment to the safety of long-term energy storage systems are redefining the competition rules of the industry.
In Beijing in early April 2026, the spotlight of the energy storage industry will focus on the 14th Energy Storage International Summit and Exhibition (ESIE 2026). When most exhibitors are still showing parameters, models and future blueprints, Haichen Energy Storage has done a more “hot” thing.
at the exhibition site, haichen energy storage officially announced the complete results of the large-scale fire test of its star product-∞ Power 6.25MWh 4-hour long-term energy storage system, and received the certification certificate issued by UL Solutions, an international authoritative safety science organization.
Figure: Sharing of large-scale fire testing techniques
Figure: Certification Ceremony
This is not an ordinary security test. This is the world’s first “open door” fire test carried out by a long-term energy storage system with a thousand-hour (1175Ah) battery core, simulating an extreme fault scenario. For the industry, this “fire” is not only burning doubts, but more clearly
Haichen chose to verify its core products in the most hard-core way at the top industry event in 2026. behind it is a profound insight into the fundamental turning point of an industry.
2026, the new energy storage industry ushered in the dual inflection point of policy and market. The National Development and Reform Commission and the Energy Administration’s Notice on Improving the Capacity Electricity Price Mechanism on the Power Generation Side (NDRC Energy [2026] No. 114) has been fully implemented. The discharge duration directly determines the income coefficient, and the long-term energy storage has changed from “optional” to “mandatory”. The landing of capacity electricity price has significantly increased the internal rate of return (IRR) of long-term energy storage projects and greatly shortened the payback period of investment.
As a result, the economic model of energy storage assets has been completely reconstructed: long-term energy storage is no longer the “cost item” of the grid or the “supporting burden” of new energy, but has a clear profit model “Core assets”.
The industry has reached an inflection point and the track logic has changed. The focus of competition quickly shifted from simple cell price competition to covering system efficiency, full life cycle cost, safety reliability and scene adaptation who can be on the long-term energy storage track of 4 hours and above, while proving its “marketability” and “economy”, who will master the industry dominance in the next decade.
under this background, the ∞ Cell 1175Ah battery cell and ∞ Power 6.25MWh energy storage system exhibited by Haichen energy storage at this exhibition are not only the product display at the technical level, but also the concrete declaration of its market strategy.
According to corporate public information data, by the end of 2025, Haichen Energy Storage will occupy a leading market position in long-term energy storage projects of 4h and above, and related products and solutions will form a significant advantage in key scenarios and become the core supplier of long-term energy storage tracks.
in overseas markets, according to experts, according to energy storage statistics, by the second half of 2025, Haichen energy storage Europe has accumulated more than 25GWh of orders in hand, accounting for 70% of long-term energy storage projects. At the same time, benchmark projects have been launched in Israel and Texas in North America to build a long-term energy storage business map covering the core energy markets in Europe, Asia and America.
In the domestic market, Haichen energy storage 4-hour system is deeply involved in the construction of large-scale national energy bases and independent energy storage projects on the power grid side, and has become a key support for new power systems by virtue of product adaptability and large-scale delivery capabilities.
This market advantage is not a short-term formation, but the result of long-term strategic focus. As early as 2022, when the industry was still generally focusing on 1-2 hours of short-term energy storage, Haichen had already started the pre-research work of thousands of hours of dedicated batteries. In 2023, it was the first to launch a thousand-hour battery cell and a 6.25MWh integrated system.
the expansion of the market scale must be based on solid project economy. Haichen’s repeated emphasis on “optimal life cycle cost” in its strategic framework is vividly reflected in the core products displayed this time.
Technological innovation is the first driving force for cost reduction. The 1175Ah super-capacity battery cell increases the energy density of the battery pack by 50%, and reduces the number of battery cells by 46% on the premise of reaching the same capacity, directly bringing about a systematic reduction in the cost of Pack integration, BMS management, wire harness connection, etc.
At the system level, the 6.25MWh single-cabin ultra-high integrated design has increased system efficiency by 35% and reduced key components by 40%.
More disruptive is its life cycle cost of electricity (LCOS) advantage. Based on the ecological day in December 2025, Wu Zuyu, founder and chairman of Haichen Energy Storage, proposed to push the cost of energy storage into the “10 cents era” in the next five years (that is, by 2030) “. This means that in the operating life of energy storage assets for more than 20 years, every charge and discharge has a very competitive economic value.
This constitutes a powerful “economic cube”: lower initial investment, longer service life, less operating expenses, and higher cycle returns. When the capacity electricity price policy brings stable “basic plate” benefits to 4-hour energy storage,
however, no matter how large the market scale or how excellent the economic model is, there is a premise that cannot be compromised in the face of energy storage, especially large-scale and long-term energy storage systems:
This is the full significance of Haichen’s choice to make public the results of its large-scale fire tests on the global stage of the ESIE 2026. The certification issued by UL Solutions is the highest endorsement of the passive safety design level of its products.
The “world first” attribute of this test is extremely heavy. It is aimed at the energy storage system with the largest single capacity (1175Ah) and one of the world’s largest single tank capacity (6.25MWh). The test adopted the most stringent “door opening” fire scheme-continuous combustion was carried out directly under the battery pack when the hatch was open, simulating the most extreme spreading conditions after thermal runaway.
This not only verifies the effectiveness of its battery core intrinsic safety, heat insulation and flame retardant materials, efficient thermal management and fire fighting system, but also proves that its full stack safety design capability from battery core to system integration can withstand the test of “purgatory fire.
On the eve of the long-term energy storage towards the TWh era, Haichen made the ultimate security commitment to the whole industry and end customers with this open, transparent and extreme test. It will promote industry competition from the single-dimensional pursuit of “energy density” and “cost” to a more balanced and responsible breakthrough in the “impossible triangle” of “safety, green, and economy.
through this exhibition, Haichen energy storage has completely presented a “Haichen paradigm” to the industry:
when the tide of the industry is surging due to the policy east wind, Haichen energy storage is not only satisfied with becoming a “trendsetter”. It chooses to become that with more solid products, more rigorous verification and longer-term doctrine-a new standard for defining long-term energy storage security and value, creating a new era from disorderly price competition to orderly value competition.
The “fire” at the exhibition has been extinguished, but the fire of belief in safety, value, and long-termism that it ignited in the industry may have just begun to start a prairie fire.
