Analysis of Chinese energy storage projects in the first half of 2022
In the first half of 2022, a total of 66 energy storage projects were connected to the grid and put into operation, including 51 electrochemical energy storage projects, 12 pumped hydro energy storage projects, 1 flywheel energy storage project, 1 compressed air energy storage project and 1 A supercapacitor energy storage project.
In the first half of last year, a total of 48 energy storage projects were put into operation, including 47 electrochemical energy storage projects and one pumped hydro energy storage project.
The number of projects put into operation in the first half of this year increased by 37.5% year-on-year, of which the number of pumped storage projects put into operation increased significantly.
Analysis of electrochemical energy storage projects in the first half of 2022
From a quarterly perspective, the number of electrochemical battery storage power station projects connected to the grid in the second quarter of 2022 was 37, an increase of 164.3% from the first quarter. The installed capacity of electrochemical energy storage in the second quarter was 341.049MW/812.58MWh. Compared with the first quarter, there is a big improvement, with a month-on-month increase of 573.37%.
In various application scenarios, grid-side energy storage, centralized new energy energy storage and power-side auxiliary services have increased significantly compared with the first quarter. Compared with the first quarter, the installed capacity of energy storage on the user side decreased slightly, but the number of projects connected to the grid in various application scenarios increased compared with the first quarter.
| Application scenarios | Number of projects 2022Q1 | Number of projects 2022Q2 |
| Grid energy storage | 1 | 3 |
| Power side auxiliary services | 0 | 4 |
| Distributed and microgrids | 2 | 4 |
| Centralized new energy | 2 | 11 |
| User side energy storage | 9 | 15 |
| Total | 14 | 37 |
Table 1 Statistics of electrochemical energy storage projects in the first half of 2022
| Application scenarios | Q1 total installed capacity/MW in 2022 | Q2 total installed capacity/MW in 2022 | Chain growth rate |
| Grid-side energy storage | 10 | 70.32 | 603.20% |
| Power-side energy storage service | 0 | 116.25 | |
| Distributed and Microgrids | 5.51 | 3.44 | -37.57% |
| Centralized new energy | 17 | 134.5 | 691.18% |
| User side energy storage | 18.138 | 16.539 | -8.82% |
| Total | 50.648 | 341.049 | 573.37% |
Table 2 Quarter-on-quarter growth rate of electrochemical energy storage installed capacity in the first half of 2022
The total number of electrochemical energy storage projects connected to the grid and put into operation in the first half of 2022 is 51, with a total installed capacity of 391.697MW/919.353MWh, while the total number of electrochemical energy storage projects connected to the grid and put into operation in the first half of last year There are 47 units, and the total installed capacity is 230.15MW/351.92MWh.
2022Q1Q2 Application scenarios | Total installed power/MW | Total rated energy/MWh | Total number of projects |
| Grid energy storage | 80.32 | 173.6 | 4 |
| Power side auxiliary services | 116.25 | 420 | 4 |
| Distributed and microgrids | 8.95 | 15.45 | 6 |
| Centralized new energy | 151.5 | 230 | 13 |
| User side energy storage | 34.677 | 79.803 | 24 |
| Total | 391.697 | 919.353 | 51 |
Table 3 Distribution of electrochemical energy storage application scenarios in the first half of 2022
2021Q1Q2 Application scenarios | Total installed power/MW | Total rated energy/MWh | Total number of projects |
| Grid energy storage | 61.54 | 133 | 7 |
| Power side auxiliary services | 64 | 36.5 | 4 |
| Distributed and microgrids | 3.575 | 5.656 | 12 |
| Centralized new energy | 66.35 | 96.04 | 13 |
| User side energy storage | 34.685 | 80.724 | 11 |
| Total | 230.15 | 351.92 | 47 |
Table 4 Statistics on grid connection and operation of electrochemical energy storage projects in the first half of 2021
Comparing the situation in the first half of 2021, it can be seen that the number of electrochemical energy storage projects in the first half of 2022 increased by only 4 compared with last year, but the total installed power increased by 70.19% year-on-year. The installed capacity has increased, with a year-on-year increase of 30.52%. The scale of power-side auxiliary service energy storage, centralized new energy energy storage, and distributed and micro-grid energy storage has doubled, with year-on-year growth of 81.64%, 128.33% and 150.35% respectively.
Year Application scenarios | Total installed power in the first half of 2021 / MW | Total installed power in the first half of 2022 / MW | YoY growth rate |
| Grid energy storage | 61.54 | 80.32 | 30.52% |
| Power side auxiliary services | 64 | 116.25 | 81.64% |
| Distributed and microgrids | 3.575 | 8.95 | 150.35% |
| Centralized new energy | 66.35 | 151.5 | 128.33% |
| User side energy storage | 34.685 | 34.677 | -0.02% |
| Total | 230.15 | 391.697 | 70.19% |
Table 5 Comparison of the installed power of electrochemical energy storage in the first half of 2021 and the first half of 2022
Analysis of pumped storage projects in the first half of 2022
In the first half of 2022, a total of 12 pumped storage projects were put into operation, an increase of 11 times year-on-year and a significant improvement over the first half of 2021.
These pumped storage are mainly concentrated in East China, South China and Northeast China. The top 5 provinces with installed pumped storage capacity are: Zhejiang, Shandong, Guangdong, Guangxi and Heilongjiang.
In addition to traditional pumped-storage projects, China is also experimenting with new micro-grid projects such as wind-solar water storage, such as the first phase of the wind-solar water-storage pumped-storage power station in Wuhan, Hubei, and the Sichuan Chunchangba variable-speed pumped-storage demonstration power station. Pumped-storage energy storage is also a part of it, exploring a new mode of multi-energy complementary operation.
Different from the past, compared with the steady emergence of pumped storage power plant in the first quarter, the contracted plans for pumped storage power stations in the second quarter showed an explosive growth.
Among the 280 projects under construction, 145 are pumped-storage power station projects with a planned installed capacity of up to 200GW. The development of pumped-storage is unprecedentedly prosperous.
Summary
With the improvement of local allocation and storage policies and the support of energy storage support policies, the grid-connected and operational scale of electrochemical energy storage projects in the second quarter of 2022 has increased significantly compared with last year, with a year-on-year increase of 166.3%.
The scale of centralized new energy projects and power-side auxiliary service projects has grown steadily, and many user-side energy storage projects have also been put into operation, covering all regions of the country.
At the same time, the scale of energy storage projects to be constructed and planned is huge, nearly 8GW. Centralized new energy projects, grid-side energy storage and power-side energy storage account for the highest proportions.
In addition to the planned project bidding, winning the bid or starting construction, more and more companies are also signing contracts and planning new energy storage projects, and the development of energy storage projects is booming.
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