As of June 2012, the growth trend of the world’s energy storage installed capacity is shown in Figure 1. As can be seen from Figure 1, after 2000, the installed capacity of energy storage basically showed an upward trend, of which the growth rate was relatively fast from 2007 to 2009, and then remained basically unchanged from 2009 to 2010. After 2010, the growth rate accelerated again.
Various energy storage technologies currently have the same application level according to the maturity of the technology and the power and discharge time. As shown in Figure 2, among the large-scale energy storage technologies that have been practically applied, pumped storage and compressed air technologies are relatively mature and suitable for energy storage systems above 100MW; sodium-sulfur batteries, vanadium batteries, lithium batteries, super lead-acid batteries and flywheel energy storage batteries have begun to be used in MW-scale applications; and in applications of 100 kilowatts and below, most energy storage technologies can meet the demand. From the perspective of power and discharge time, the energy storage technologies above the MW level and the discharge time above the hour level are pumped storage, compressed air, sodium-sulfur batteries and some vanadium batteries. The energy storage technology with power below MW level and discharge time below hour level is super battery and super capacitor. Some products of flywheel energy storage can achieve short-term high-power output, and some products of lithium-ion batteries and lead-acid batteries can achieve long-term, low-power output.
At this stage, the power system development plans of various countries in the world have begun to continuously increase the proportion of new energy power generation, adding and emphasizing the role of energy storage systems in the power system. Developed countries represented by the United States, Japan, and Germany have formulated special development plans for energy storage in the power system. The fields of energy storage development in various countries are mainly concentrated in the construction of smart grids, grid-connected renewable energy, distributed generation, microgrids and electric vehicles. Government agencies, scientific research institutions and advanced manufacturers in various countries generally believe that energy storage technology is an indispensable supporting technology for the future development of the power system. The huge development prospects of smart grids, renewable energy access, distributed generation and microgrids, and electric vehicles have created more opportunities for energy storage technology to participate in the development of electricity.
From the perspective of the future development plans of various countries in the world, the large-scale application of energy storage technology in the power system. Expanded applications in smart grid construction, grid connection of renewable energy, auxiliary services of power generation systems, distributed generation, home energy storage, and microgrids are the main development trends of energy storage technology in the future.
In the application of power system, sodium-sulfur batteries have the highest application ratio in the field of grid peak regulation, load transfer and reserve capacity (spinning reserve, etc.) and the field of renewable energy grid connection, which is about 84.78%. It proves that it is a relatively mature technology in the field of chemical energy storage, and also shows the future application and development trend of sodium-sulfur batteries.
Lithium ion battery technology is widely used in various fields, but its performance is most prominent in grid frequency regulation, accounting for about 56% of all energy storage technologies, combined with the fact that its technology has developed rapidly in recent years. In the future, lithium-ion battery technology will be applied on a large scale in grid frequency regulation and more involved in other power system energy storage applications.
With the rise of home energy storage, lead-acid batteries and lithium-ion batteries have good prospects in the user-side market, and it is believed that the installed capacity in the user-side market will increase to a certain extent in the future.
In addition, technologies such as compressed air, flywheel energy storage, and superconducting containers will be gradually applied in the field of distributed power generation on a large scale with the advancement of technology and the development of new materials. The widespread deployment of microgrid and off-grid projects also provides room for expansion and growth in the installed capacity of energy storage systems. If you need to buy a matching battery for home energy storage, you can learn about TYCORUN lithium ion ups battery backup for house, the website is: https://www.takomabattery.com/ups-lithium-battery-ultimate-faq-guide/