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At present, the energy storage industry has no choice but to talk about safety. After all, there are too many "unsafe" things in sight.
An energy storage project as far away as Arizona caught fire and exploded, which directly injured four firefighters.
South Korea, a neighboring country, is home to Samsung SDI and LG Chemical, two leading energy storage enterprises in the world, and also ranks first in the number of energy storage fires in the world. After 21 fires, the energy storage industry in South Korea almost stopped. The Korean government is currently investigating this series of accidents, and it is said that the conclusion will be released in May.
Even the peers are not "winning". On April 22, a Tesla electric vehicle ignited spontaneously in the underground garage of a community in Shanghai. The monitoring video shows that the chassis of this electric vehicle suddenly emits white smoke. Within a few seconds, the vehicle body deflagrates and the fire is fierce. This is not the first time Tesla has experienced spontaneous combustion, but this time, spontaneous combustion has become a national topic.
According to incomplete statistics of public information, there have been nearly 30 fire incidents of energy storage system in the world since 2011, mainly lithium battery energy storage system.
It is obviously necessary for battery manufacturers and energy storage system integrators to provide safer products. Lithium battery is not a new thing, but it will not last long for large-scale power storage. Several international standards on battery energy are new standards issued in recent years. In China, the industry has also been calling for strengthening the construction of energy storage related standards, especially in safety, fire protection, product testing and certification. From battery body to system, manufacturing enterprises still face many problems to be solved.
In addition to product safety itself, enterprises are also thinking about avoiding business risks through commercial arrangements.
For example, in the early stage of energy storage system promotion, in order to reassure users, energy storage systems are often held by energy storage enterprises themselves. For example, in the "investment+operation" mode in the user side energy storage field, the plants and parks that use the energy storage system to cut peak and fill valley do not have an energy storage system, and only share the arbitrage income of peak valley difference with the power station holders. The same is true for combined frequency regulation of thermal power plants, which is shared by the holders of thermal power plants and energy storage power plants on the income from auxiliary services.
For some companies interested in expanding energy storage business, security risk is a matter that must be considered. After all, the maturity and security of energy storage products need to be further improved. The accident brought about high economic losses and negative impact on corporate reputation. If we can at least avoid economic risks, it will also be of great help.
According to the insurance industry, purchasing relevant product liability insurance can not only help enterprises reduce economic losses, but also help the project financing of the energy storage system. Especially for some enterprises that need to explore the international market, it is easier to obtain bank credit and partner trust when purchasing insurance.
In March this year, the German insurance giant Munich Reinsurance Company announced the launch of the world's first long-term insurance product targeting the performance of existing energy storage batteries. The first one to buy this insurance was an American liquid flow battery company. If the manufacturer pays more than the predetermined amount for later battery module repair and replacement, the insurance company will cover the excess.
With the continuous expansion of the energy storage market, insurance companies will also pay more attention to this emerging field, and enterprises can also have a variety of risk control means.
But this is back to the starting point. If the accident rate in the production, construction, transportation and later operation and maintenance related to energy storage is higher, the premium will be higher, just as the premium of electric vehicles is often higher than that of traditional fuel vehicles. Only when the accident rate is kept at a low level can the insurance products have a better economy.
Therefore, the development of the industry and the growth of the enterprise ultimately depend on the safety and reliability of the energy storage products themselves.
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