Abstract:
• Since 2011, with the rapid transformation of the global energy structure to a low-carbon form, renewable energy installed capacity has accelerated, especially intermittent renewable energy such as wind power and photovoltaics have become the main force in the world's new installed capacity in recent years. Over the past 10 years, the global renewable energy installed capacity has always maintained an annualized growth rate of 8-10%. In 2021, the total installed capacity of renewable energy in the world will reach 3064GW (excluding pumping and storage), of which wind power is 825GW and photovoltaic 849GW. The volatility of the power system will gradually increase with the increase of the penetration rate of renewable energy . At the same time, the increase in electrification rate on the power consumption side has further increased the challenge of power system scheduling. Therefore, the power grid needs to significantly improve flexibility, and various energy storage technologies will play an important role. The energy storage needs discussed in this article are mainly based on power energy storage installations that improve grid flexibility, and do not include various portable energy storage products.
• Power energy storage is widely used on the power supply side, grid side, and user side of the power system. Different application scenarios have different requirements for the continuous discharge time of energy storage. Corresponding to the commonly used timing analysis methods of power systems, they can be divided into ultra-short-time (second to minute), short-time (hour to several days) and long-term time scales (weeks, months, and years). Global Energy Internet Development Cooperation Organization According to the distribution characteristics of power installation and loads on various continents, it is predicted that by 2050, the global power storage will account for 95% of the power storage capacity, mainly lithium batteries, sodium batteries, flywheels, and supercapacitors will account for 92% of the energy storage capacity of . By 2050, short-term energy storage mainly used in power generation side primary frequency regulation , intraday peak regulating, and user side intraday peak regulating, accounting for 81% of the overall energy storage power and 5% of the power storage capacity.
• We predict that lithium-ion battery , sodium ion battery and other electrochemical energy storage technologies, which have both power and energy, will develop rapidly in the short term. In 2025, the global cumulative installed capacity of new energy storage, mainly electrochemical energy storage, is expected to reach 741GWh from
• Against the backdrop of unbalanced global lithium resource distribution, the current price of lithium carbonate is high. In order to alleviate the constraints on the development of energy storage and power battery related industries, battery companies represented by CATL , material companies represented by CATL , Dang 2 Lit Technology and Rongbai Technology have all deployed sodium ion battery systems. CATL announced in 2021 to mass-produce sodium ion batteries in 2023. Recently, Dang sheng Technology and Rongbai Technology have also successively launched sodium ion positive electrode materials, aiming to promote the promotion and popularization of electrochemical energy storage technologies with richer supply of upstream resources, lower costs, and higher security, and jointly promote electrochemical energy storage to enter the TW level development stage as soon as possible.
Due to too much space, some of the contents of are excerpted as follows:
Statement: The above report contents are obtained from public and legal channels. The copyright of the report belongs to the original writing/publishing agency. If there is any infringement, please contact us to delete (13052503301@163.com). If you have any doubts about the report, please contact the writing/publishing agency.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-