What kinds of energy storage are there
Energy storage can be classified according to different ways, the following are several common ways of classification:
1. Classification according to energy form: - Electrical energy storage: such as batteries, supercapacitors, etc. - Kinetic energy storage: such as flywheel, compressed air energy storage, etc. - Thermal energy storage: such as thermal energy storage, heat pumps, etc. - Chemical energy storage: such as hydrogen energy storage, chemical batteries, etc. 2. Classification according to energy storage scale: - Large-scale energy storage: such as hydropower stations, battery arrays, etc. - Small and medium-sized energy storage: such as household batteries, small wind power generation systems, etc.
3. Classification according to energy storage technology:
- Electrochemical energy storage: such as lithium-ion batteries, sodium-sulfur batteries, etc.
- Mechanical energy storage: such as flywheel energy storage, compressed air energy storage, etc.
- Thermal energy storage: such as molten salt energy storage, phase change energy storage, etc.
- Electromagnetic energy storage: such as superconducting magnetic energy storage.
4. Classification according to energy storage use:
- Power grid energy storage: used to balance the power grid load, peak and valley peak adjustment, etc.
- Transportation energy storage: for electric vehicles, hybrids, etc.
- Home energy storage: Used for home Solar Panels, electric appliances, etc.
It should be noted that the above classification methods are not completely independent, and some energy storage technologies may cover more than one classification. In addition, as technology continues to evolve, new ways of classifying energy storage may also continue to emerge.
Applications for energy storage
Energy storage refers to the technology of converting electrical energy into other forms of energy and storing it so that it can be converted back to electrical energy when needed. There are many applications of energy storage, which can be mainly divided into the following areas: Electric energy storage: Electric energy storage refers to the technology of converting electrical energy into chemical energy, mechanical energy, heat energy and other forms, and adjusting and optimizing it in the power grid. The application scenarios of power storage include renewable energy grid-connection, grid frequency modulation, peak-valley balance, standby capacity, and power quality improvement. There are many types of electric energy storage technologies, such as lithium batteries, sodium-sulfur batteries, supercapacitors, flywheel energy storage, compressed air energy storage, pumped storage, etc
Communication energy storage: Communication energy storage refers to the technology that provides stable, reliable and efficient power for communication facilities such as communication base stations and data centers. The application scenarios of communication energy storage include backup power supply of communication base station, peak cutting and valley filling of communication base station, reactive power compensation of communication base station, backup power supply of data center, etc. The technology types of communication energy storage are mainly lithium batteries, lead-acid batteries, nickel-metal hydride batteries and so on.
•Home storage: Home storage refers to the technology that provides energy storage and management for home users. The application scenarios of household storage include time-of-use price management, self-use, emergency backup, power supply in areas without electricity, etc. The technical types of household storage are mainly lithium batteries, lead-acid batteries, nickel-metal hydride batteries and so on.
Portable Energy Storage: portable energy storage refers to the technology that provides convenient, flexible and high-performance power for mobile devices, electric vehicles, etc. The application scenarios of portable energy storage include the charging of electronic devices such as mobile phones, tablets, notebooks, and cameras, the charging and replacement of electric vehicles, and the power supply for military, medical, outdoor and other special occasions. Portable energy storage technology types are mainly lithium batteries, nickel-metal hydride batteries, fuel cells and so on.
The future of energy storage in China
According to the "14th Five-Year Plan" New Energy Storage Development Implementation Plan issued by the National Development and Reform Commission and the National Energy Administration, China will accelerate the high-quality and large-scale development of new energy storage to achieve the goal of carbon peak carbon neutrality and support the construction of a new power system. By 2025, the installed capacity of new energy storage will reach more than 30 million kilowatts, and by 2030, new energy storage will be fully market-oriented and become one of the key supports for carbon peak carbon neutrality in the energy field.
• The future development of China's energy storage will follow the basic principles of overall planning, diversified development, innovation-led, scale-driven, policy-driven, market-led, standardized management, and security, encourage the diversified development of energy storage in multiple fields and scenarios such as power supply side, grid side, user side, and portable, and promote energy storage technology innovation and industrial transformation. Improve the energy storage policy mechanism and market environment, and improve the energy storage standard system and safety management
• The future development of China's energy storage will face a series of opportunities and challenges, such as the rapid growth of renewable energy, the deepening reform of the power market, the breakthrough and cost reduction of energy storage technology, international competition and cooperation in the energy storage industry, energy storage safety and environmental risks and impacts. China needs to strengthen its scientific and technological innovation capacity, accelerate the transformation of innovation achievements, enhance the competitiveness of the energy storage industry, create a healthy market environment, and promote the deep integration of energy storage with the power system, new energy, and electric vehicles, so as to provide more impetus and wisdom for energy transformation and green development.
