Analyze the status quo of energy reserves from three aspects: technology, market and policy

At present, my country's energy storage technology has initially laid the foundation for industrialization. The number of projects such as energy storage technology research and development and ground demonstrations is constantly increasing, and related mechanisms are also undergoing rapid development and change. Today's Insight Trends column will take you to analyze the current status of energy reserves from three aspects: technology, market, and policy. Technical energy storage technology includes physical energy storage, chemical energy storage and other forms, including but not limited to those shown in Figure 1. In recent years, my country's energy reserves have shown a good trend of diversified development. Among them, the installed capacity of pumped storage has always accounted for the largest proportion. The research, development and application of energy storage technologies such as compressed air energy storage, flywheel energy storage, superconducting energy storage, supercapacitors, storage batteries, lithium batteries, sodium-sulfur batteries, flow batteries have accelerated, and heat storage technology, refrigeration and storage Hydrogen has also made some progress. In terms of technology, in addition to pumped storage, progress has also been made in electrochemical energy storage technologies such as lithium batteries, lead batteries, sodium-sulfur batteries, mobile batteries, and supercapacitors. According to the results of the study, the All-China Federation of Industry and Commerce (CNESA) of the Energy Storage Committee, the global installed capacity of new electrochemical energy storage projects was 914.1MW in 2017, an increase of 23% year-on-year. 3063 megawatts. The development speed of lithium batteries is the most eye-catching.The storage capacity of new energy lithium batteries in the world accounted for 93% in 2017, with a size of 2926.6MW, an increase of 45% over the same period last year. In various electrochemical energy storage technologies, lithium Batteries have been installed accounted for more than 75%, new scale accounted for about 93% of the total number of electrochemical energy storage Xinhe battery followed closely. The domestic situation is similar to the international situation. Pumped storage is dominant, followed by the cumulative scale of electrochemical storage. By 2017, the proportion of lithium batteries in electrochemical energy storage technology is about 58%. In the first half of 2018, the installed capacity of lithium batteries was 690.2mw, a year-on-year increase of 133%. At present, the most important development direction is solid lithium batteries, exploring more efficient products. The development of industrialized quality and energy storage in the domestic market is still in its infancy. The depth of energy storage in the power system cannot be involved. The microgrid or client application scenarios are not yet mature. For example, some worlds have begun to study and verify that the domestic is not yet complete. Mastered technology, as well as the current large-scale domestic energy storage projects, such as hundreds of megawatts, little practical experience. At present, the domestic energy storage industry has a gap with the international industry in terms of technological development level and overall development speed. In terms of market geographic distribution, the electrochemical energy storage projects that have been put into production in my country are mainly distributed in more than 20 provinces and cities. In 2017, the installed capacity was approximately 121MW, a year-on-year increase of 16%. In the first half of 2018, the installed capacity of my country's newly commissioned electrochemical energy storage projects was 100.4mw, a year-on-year increase of 127%. The new scale of the top 10 provinces accounted for about 99% of the total scale, of which Jiangsu Province accounted for the largest proportion of new projects in the first half of 2018, at 25.2mw. Figure 5. The top five provinces and cities with newly added electrochemical energy storage projects (data source: CNESA) From the perspective of application fields, energy storage technology can be widely used in power systems, electric vehicles, rail transit, UPS, power tools, electronic products and other fields. As an important part of the energy configuration of smart energy systems, energy storage plays an increasingly prominent role in the energy system. In the power system, energy storage can serve multiple purposes such as peak shaving, power reduction, transmission and distribution, auxiliary frequency regulation, and intelligent management. It can be applied to power generation systems, power grids, auxiliary services, clients, and renewable energy grid-connected fields. In particular, energy storage can significantly increase the absorption level of renewable energy such as wind energy and solar energy, and solve the Internet access problem of abandoning wind and solar energy and other energy sources. It is a key technology to achieve large-scale grid integration of centralized renewable energy. Distributed renewable energy micro-grids can also play a flexible and synergistic role, strongly promote the transformation of energy consumption from fossil energy to renewable energy, and build a clean, low-carbon, safe and efficient modern energy system. As the automotive industry develops towards electrification, the demand for power lithium-ion batteries and energy storage equipment is also rising rapidly. In the first half of 2018, the output of new energy vehicles reached 413,000, a year-on-year increase of 94.9%, and the market demand for energy storage systems rose rapidly. On the other hand, in some cases, electric vehicles are also regarded as energy storage facilities, and retired power lithium-ion batteries can also be converted into energy storage systems. Regardless of the application in which field, however, the current promotion of the energy storage industry is still important because of policy-driven, important material price fluctuations, difficulties in the processing process, changes in application scenarios, and even differences in operational management levels are caused by high costs and no market competition. Advantages, technology and business models need to be observed and inspected for a long period of time, and the economy has become an important bottleneck restricting its large-scale application. Facts have proved that improving the energy conversion efficiency of energy storage equipment requires a process, and the current level of development of the energy storage industry is far from achieving profitability and commercialization. According to the Ministry of Energy's overall plan for the energy storage industry, the next ten years will go through two stages of development. The transformation from Ru0026D demonstration to commercialization. By 2020, the energy storage industry will enter the early stage of commercialization, and the key use of energy storage in the transformation of the energy system will initially appear. Complete a batch of pilot demonstration projects of different technology types and application scenarios. Developed a batch of important key technologies and core equipment, and important energy storage technology reached the international advanced level; the energy storage technology standard system was initially established, and a number of key technical specifications and standards were formed; explored some scalable business models; cultivated a number of Competitive market players. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What is a lithium battery? How does it work?