Don't let safety problems hinder the development o

Don't let safety problems hinder the development of the energy storage industry

in February this year, a rumor that the Australian Standards Association drafted the as/nzs5139 safety standard raised concerns about the development of the industry in the world's energy storage industry. This rule will prohibit the installation of lithium-ion battery energy storage systems indoors and in garages, and require them to be installed in separate buildings. The draft will also cover specific requirements and regulations for the installation of various types of energy storage battery systems, so as to identify and mitigate various hidden dangers related to the installation of energy storage systems. In February this year, a rumor that the Australian Standards Association drafted the as/nzs5139 safety standard raised concerns about industrial development in the world's energy storage industry. This rule will prohibit the installation of lithium-ion battery energy storage systems indoors and in garages, and require them to be installed in separate buildings. The draft will also cover specific requirements and regulations for the installation of various types of energy storage battery systems, so as to identify and mitigate various hidden dangers related to the installation of energy storage systems. In addition, Queensland regulators also released a recommendation that this restriction should not only include lithium batteries, but all battery energy storage units. This incident once again aroused the attention of all sectors of society to the safety of energy storage

in the view of the industry, this event will trigger a series of chain reactions: increase the cost of the additional energy storage system, making the energy storage system lack of economy; Affect the performance of the battery. In a non ideal and uncontrollable environment, the performance of the battery will also be affected by temperature and humidity; Even if this draft and relevant suggestions are not adopted as legal content, it will also affect the market's judgment of the industry, and will put the market with a scale of hundreds of millions of yuan at risk

the global energy storage safety standard system has not yet been formed

in fact, battery products have been widely used in people's daily life, but for the application of energy storage systems in various fields, the market is still treated with new technologies, which has its own reasons for insufficient commercial application, as well as insufficient policy and market support. The market is particularly concerned about the problems caused by such products, and the safety problems are more prominent, which directly restricts the application of energy storage technology and even the development of energy storage industry. In particular, the safety problems caused by lithium-ion batteries are not the first time in recent years that they have been on the hot search in the circle, including the safety incidents of All Nippon Airways Boeing 787 in Boston in 2013 due to the lithium battery fire on board and Samsung battery fire in 2016

according to the tracking of global energy storage projects by Zhongguancun energy storage alliance, the first lithium-ion battery project in New York City was approved to be deployed in users' Apartments this year. In the past, due to users' concerns about hidden dangers such as fire and the strictest fire control rules in New York City, the application of energy storage projects was difficult. Although New York announced to complete the 100mwh energy storage construction goal by 2020 (at present, only 4.8mwh has been installed), the progress is relatively slow, and the fire safety problem has become one of the main obstacles, especially the application of lithium-ion batteries in buildings still needs complicated approval procedures to achieve

in Germany, although the government did not restrict the application of energy storage systems indoors, it also clearly pointed out that although the German energy storage market is becoming mature, the standardization of safety rules is still going on synchronously. In Australia, installation standards for battery systems, including household use, have been formed, but there are still concerns that these standards have fallen far behind the rapidly developing energy storage technology itself

it can be said that with the development of energy storage industry, the global energy storage safety standard system is being formed, but there are still some deficiencies

energy storage rules and standards are related to industrial development

at present, the global energy storage market is ushering in a stage of rapid development, especially the rapid development of household energy storage following the distributed photovoltaic, which is sought after in Australia, Germany and other countries and regions, and the market potential is huge. Global energy storage service providers, including Tesla, Sonnen and so on, are stepping up their layout, and the global large-scale commercial development of energy storage is imminent. However, the popularization of any new technology must face safety assessment. Obviously, on this issue, the device government and relevant industry management departments should make constraints in advance

on the one hand, it is not objective to completely deny the application of energy storage technology or prohibit the application of energy storage technology due to safety problems, especially fire problems, which not only denies the value of energy storage technology, but also has a suspicion of looking at it differently in the application of new technology. If it is said in Australian rumors, does it mean that we should also re recognize the daily battery application equipment, including notebook computers, and re evaluate the fire probability caused by problems such as line aging. Therefore, we should clarify the value of energy storage, rather than magnify the individual problems it produces because it has not yet become a necessity of daily life

on the other hand, although Australia's restrictive standards are slightly harsh, they also reflect the concern of the government and relevant departments about safety issues. Enterprises, including Sonnen, LG and BYD, have made statements that household energy storage products applied worldwide have not experienced similar fires, and Germany has also verified the safe use of energy storage. However, it is obvious that the existing safety specification system and project approval procedures are not perfect. It is imperative to formulate corresponding rules and standards for energy storage safety, and keep pace with the development of energy storage industry

in China, due to the fact that the national support policy has not yet defined the identity of energy storage, the approval and standard system of energy storage is not perfect, especially in some large cities, the implementation of energy storage projects still faces great bottlenecks, which has also attracted the attention of planning, greening, fire protection, urban management and other departments. Energy storage can neither be used as a building to go through the approval process (complex and increased by 8, and the cost of screening out defective parts in advance), nor as a facility to affect the urban landscape, especially without potential safety hazards and problems. In addition to improving policies and systems, it is necessary to promote the construction of standard criteria system in system design, equipment manufacturing, system integration, operation and maintenance, installation and commissioning, and clear the obstacles to the development of energy storage industry and technology application

implement the safety guarantee of energy storage

in fact, after Samsung's battery had problems, South Korea said it would strengthen the safety requirements of lithium-ion batteries and conduct regular inspections to avoid the recurrence of similar fire events. At the same time, equipment using lithium batteries should undergo more routine safety tests

in Japan, in order to promote the application of energy storage technology, some approval procedures involving energy storage are gradually simplified, but the application of energy storage technology is still standardized through relevant guidelines and regulations. Including the fire prevention regulations and fire prevention regulations formulated by the fire and Disaster Management Bureau and the Ministry of the interior and communications, which have corresponding provisions on hazardous substances and large-scale energy storage batteries

the German solar energy industry association made a comprehensive report based on the safety of lithium-ion battery household energy storage system in 2014, and explained the source of hidden dangers of the battery system, possible preventive measures and possible corrective measures

in February this year, the Australian Standards Association released the roadmap of energy storage standards, which pointed out that the promotion of energy storage must first focus on the installation of energy storage systems, product safety and performance standards, as well as the implementation of battery recycling, treatment and transportation, training and other standards. In addition, the Australian Clean Energy Commission has also proposed a certification scheme for the installation of energy storage systems, while providing consumers with best safety practice guidance for the installation and use of energy storage systems

many organizations in the United States have also issued corresponding specifications and standards for the application of energy storage technology, including installation, certification, fire protection, etc. With the rapid development of energy storage technology, these rules are constantly updated

in this regard, we suggest: first, strengthen the tips for consumers and design and installation personnel, and carry out certification and training for design and installation personnel, especially small-scale commercial energy storage systems; The second is to design the safety criteria and standard system for energy storage, and incorporate the relevant event reports into the database for management and publicity; Third, strengthen the recycling management of energy storage batteries when it is difficult to evaluate the value of energy storage batteries; Fourth, promote the synchronization of industrial development and safety management construction, not only to avoid one shot down, but also to find out the core problems and screen the relatively mature technologies

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