With the global environmental pollution and fossil energy shortage problems getting increasingly serious, renewable energy sources (RES) are drawing more and more attention. In China, RES are experiencing rapid development. However, because of the randomness of RES and the volatility of power output, energy storage technology is needed to chip peak off and fill valley up, promoting RES utilization and economic performance. So to speak, e. With the global environmental pollution and fossil energy shortage problems getting increasingly serious, renewable energy sources (RES) are drawing more and more attention. In China, RES are experiencing rapid development. However, because of the randomness of RES and the volatility of power output, energy storage technology is needed to chip peak off and fill valley up, promoting RES utilization and economic performance. So to speak, energy storage is the precondition of large-scale integration and consumption of RES. However, China's energy storage industry is at the exploration stage and far from commercialization. This restricts the development of RES to certain extent. For this reason, this paper will concentrate on China's energy storage industry. First, it summarizes the developing status of energy storage industry in China. Then, this paper analyzes the existing problems of China's energy storage industry from the aspects of technical costs, standard system, benefit evaluation and related policies. Finally, solutions are proposed based on the above problems to promote the sound development of China's energy storage industry.••ACalternating currentAGVautomatic guided vehicleAQSIQGeneral administration of quality supervision, inspection and quarantine (of China)BEVbattery electric vehiclesBMUBundes Ministry for Umwelt (of Germany)China's energy storage industryEnergy storage technologiesWith the worse environmental conditions and growing scarcity of fossil energy worldwide, RES draw more and more interests. Currently, RES have been indispensable for countries to safeguard energy security, protect environment and tackle climate change, and have been used for various purposes, such as UPS and EPS in communications, smart grid, micro-grid, power supply for remote areas, DG, energy storage device used in EV and the large back-up sources. Therefore, storage problem for RES becomes a new research focus, and the energy storage technology thus attracts tremendous attention.China has rich RES, however, due to the inconsistency between power output period and consumption period, wind power abandoning is serious. Energy storage can reduce the peak-valley difference and smooth the load to promote RES utilization. At present, China's power grid peak-shaving mainly depends on PSS. But PSS is subject to geographical conditions. Small peak-shaving system, like high-capacity energy storage battery, can realize multiple-point peak load regulation on the micro level and is unconstrained by geographical condition. And it can also be a beneficial supplement to PSS with its flexible size. In addition, the demand for energy storage has been strengthened with the rapid power grid construction in nonelectric regions, the further dilatation of household DG, the fast promotion of EV and the upgrade of communication b. 2.1. Overview of the world's energy storage industryIn recent years, global energy storage market maintains rapid growth. Driven by the Euramerican and Asia-Pacific market, worldwide energy storage industry experienced fast development in 2015. According to CNESA, global cumulative installed capacity of energy storage system was 946.8 MW (excluding PSS, CAES and heat storage) by the end of 2015 and the growth rate was 12.7% compared with year 2014. The global total installed energy storage capacity during 2000–2015 is shown in Fig. 1.2.2. Overview of China's energy storage industryIn year 2015, China's energy storage market maintained fast growth. The cumulative capacity was 105.5 MW and increased by 29.8% than year 2014. The cumulative capacity of China's energy storage market during 2000~ 2015 is shown in Table 1. Among them, LiB occupy the highest application proportion of over 66%, PbAB and FB accounts for 15% and 13% separately.Table 1. Cumulative capacity of energy storage market in China during 2000~ 2015.China's energy storage devices are mainly installed in the demand side with the proportion of 46% and most of them are DG and micro-.
