Green and low-carbon transformation is the general trend of world energy development, and clean energy represented by solar energy, wind energy and water energy will become the dominant. The “14th Five-Year Plan for New Energy Storage Development Implementation Plan” issued by the National Development and Reform Commission and the National Energy Administration recently pointed out that pilot demonstrations of various new energy storage technologies will be carried out in Shandong, Hebei, Shanxi and other regions.

In terms of different regions, Shandong has taken the lead in launching energy storage demonstration projects in 2021, and the scale of energy storage operation exceeds 500MW. The collection of demonstration projects in 2022 has also been launched recently.

Hebei is also the location of the National Wind and Solar Storage and Transmission Demonstration Project and the Zhangjiakou Renewable Energy Demonstration Zone, so the innovative development potential of new energy storage should not be underestimated.

So, what is the development potential of energy storage in Shanxi Province, which ranks third?

According to the project database of "Energy Storage and Electricity Market", Shanxi Province currently has a storage capacity of up to 7.749GW of energy storage projects, mainly using conventional new energy configuration and large base configuration energy storage projects, independent energy storage projects, new energy + energy storage projects Pilot demonstration projects are mainly distributed in Shuozhou, Datong, Xinzhou, Yuncheng and other cities.

Shanxi, which has grown from a "coal leader" to a "leader in energy transition", is accelerating its transition to clean energy, and the pressure of new energy grid-connected consumption also drives Shanxi to join the team that requires new energy to be equipped with energy storage.

In September 2021, the Shanxi Provincial Energy Bureau released the "Announcement of the Evaluation Results of Competitive Configuration of Wind Power and Photovoltaic Power Generation Projects in Shanxi Province in 2021", and announced the guaranteed projects and alternative projects of wind power and photovoltaic projects in Shanxi Province in 2021. Among them, a total of 9.71GW of affordable photovoltaic projects, a total of 1.49GW of affordable wind power projects, and all the alternative projects are photovoltaic projects, a total of 5.892GW.

Among the guaranteed and alternative projects, Datong, Shuozhou, Xinzhou, Yangquan and other places announced that the energy storage ratio of projects is between 10-15%. According to the calculation of power allocation, the energy storage allocation capacity of the guaranteed wind and solar projects and alternative photovoltaic projects in Shanxi Province reached 1165MW and 604MW respectively.

In terms of large bases, in October 2021, the Shanxi Provincial Energy Bureau issued the "Notice on Matters Related to the First Batch of Large-scale Wind Power and Photovoltaic Base Projects in 2021", announcing the first batch of base projects in Shanxi Province, a total of 13 projects with a total scale of up to 2GW. If the energy storage is calculated according to 10% of the power, the energy storage capacity of the first batch of base projects in Shanxi Province is 200MW.

Independent energy storage projects

In 2021, independent energy storage has become the outlet, and Shanxi has been unwilling to follow, and has successively filed, tendered, and started a number of independent energy storage projects. Previously, "Energy Storage and Electricity Market" has tracked and reported the situation of a series of independent energy storage projects in Shanxi Shuozhou (Review: Where will the 3.175GW/6.05GWh independent energy storage project in Shanxi Shuozhou go?).

In addition, central enterprises such as Huaneng and Huadian, private enterprises such as Daowei Energy Storage and Shanxi Fuguang New Energy also strive to record a large number of independent energy storage projects in Shanxi. According to the project database of "Energy Storage and Electricity Market", the total scale of independent energy storage projects registered in Shanxi Province has reached 5GW/8.4GWh.

2022 "New Energy + Energy Storage" Pilot Demonstration Project

In November 2021, Shanxi Provincial Development and Reform Commission, Energy Bureau, and Shanxi Energy Supervision Office jointly announced the first batch of "new energy + energy storage" pilot demonstration projects. A total of 15 projects of 780.7MW were selected and required to be completed and put into operation before the end of 2022. , many of which are the first-phase projects of independent energy storage power stations that have been filed.

According to the tracking of Shanxi projects by "Energy Storage and Electricity Market", except for the Huadian Datong Thermal Power Energy Storage Project in the State Grid Times, which has been the first to start construction in July 2021, the progress of most projects is limited at present. Considering the economic factors of the project, it is worth watching whether it can be put into operation as scheduled before the end of the year.

From the perspective of the distribution of technical routes, Shanxi especially emphasized the requirements of diversified energy storage technologies and pilot demonstration applications in this "new energy + energy storage" demonstration project. In addition to lithium iron phosphate batteries, flywheel, liquid flow, Technical routes such as sodium ions and super capacitors have been included in the list of demonstration projects, and hybrid applications with lithium ion batteries have been realized.

All vanadium flow battery

Demonstration projects involving the use of all-vanadium redox flow batteries total 150MW, accounting for 19.21%. As an auxiliary technology, flow batteries are combined with lithium-ion batteries and applied to many large-scale independent power stations, but the proportion of flow capacity is not high.

Flywheel energy storage

Demonstration projects involving the use of flywheel energy storage totaled 130.7MW, accounting for 16.74%.

Among them, the owners and shareholders of Dinglun Energy Technology (Shanxi) Co., Ltd. 30MW flywheel energy storage project are Shanxi Weihan Technology Co., Ltd. (65%) and Beacon New Energy Co., Ltd. (35%). The flywheel technology is likely to be inherited by Beacon Company. The Canadian Temporal Power flywheel technology. According to Behnken, the project is the world's largest flywheel energy storage power station, which can undertake the task of ACE tie line deviation adjustment and rapid peak regulation of the provincial power grid.

Another flywheel energy storage project is the Jiufang Gujiao Shared Energy Storage Demonstration Station Project (Phase 1). The previous filing information shows that the installed capacity is 100MW and is equipped with a 20MW/5MWh flywheel. The project owner, Shanxi Shenghong Jiufang New Energy Co., Ltd., seems to be in line with Shenzhen Shenghong is inextricably linked, whether it means that Shenghong will move from a product manufacturer focusing on modular PCS to project development is unknown.

Lithium iron phosphate battery

The lithium iron phosphate route, which accounts for more than half, is still the mainstream. Among them, the State Grid Times Huadian Datong Thermoelectric Energy Storage Project invested and constructed by State Grid Times and Huadian Corporation, a joint venture between CATL and State Grid Comprehensive Energy, has a total investment of about 1.2 billion yuan, and has taken the lead in starting construction in July 2021.

In addition to this demonstration project, there are many precedents for pilot demonstrations of diversified energy storage technology routes and diversified energy storage application scenarios in Shanxi: In 2018, Kehua took the lead in applying the hybrid solution of AC side coupling and DC side coupling of solar energy storage to 250MW in Changzhi, Shanxi The photovoltaic technology leader base project has created a precedent for the application of AC-DC hybrid solutions in the domestic photovoltaic storage field.

In 2020, the 1MW flywheel + 4MW lithium-electric hybrid energy storage frequency regulation test led by State Grid Shanxi Electric Power Research Institute and Shenyang Microcontrol was a complete success in Laoqianshan Wind Farm in Youyu County, becoming the first to use flywheel energy storage technology to solve the primary frequency regulation of new energy Applications.

In 2021, Zhongke Haina launched the world's first 1MWh sodium-ion battery optical storage and charging intelligent microgrid system in Taiyuan, Shanxi, and successfully put it into operation, accelerating the commercialization of sodium-ion batteries. Editor/Sang Xiaomei