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Taking advantage of the situation, China's new energy storage development presses the "acceleration key"
china energy storage network:To achieve the goal of "double carbon", energy is the main battlefield and electricity is the main force. The latest data from the National Bureau of Statistics show that in the first quarter of 2024, the utilization rate of industrial capacity above designated size nationwide was 73.6 percent.
Recently, the National Energy Administration issued the "Notice on Promoting the Grid-connected and Dispatching of New Energy Storage" (hereinafter referred to as the "Notice"). The "Notice" proposes to standardize the grid-connected access management of new energy storage, optimize the dispatching operation mechanism, give full play to the role of new energy storage, and support the construction of new power systems. Many experts said that the new energy storage is an important technology and basic equipment for building a new power system, and is an important support for achieving the goal of carbon neutralization. To promote the diversified development of new energy storage technology, from pilot demonstration to large-scale commercial, to help the construction of new energy system to speed up.
Technological Innovation Helps Technological Breakthrough
Promoting energy utilization to reduce costs and increase efficiency
With the continuous development of new energy technologies, as a key link connecting energy production and consumption, the importance of energy storage technology has become increasingly prominent. Relevant experts pointed out that through innovative energy storage technology, the intermittent and unstable problems of new energy can be better solved and energy efficiency can be improved.
Innovation is the background color of development, and scientific and technological innovation provides power for new energy storage to reduce costs and increase efficiency. Recently, Hubei Yingcheng 300 MW compressed gas energy storage power station demonstration project was successfully connected to the grid for the first time, becoming the world's first (set) 300 MW compressed gas energy storage power station. The project innovatively adopts the "compressed gas energy storage system solution" to effectively improve the peak regulation capacity of the regional power grid, while promoting the grid to eliminate more new energy sources such as wind power and photovoltaics.
Li Hong, a researcher at the Institute of Physics of the Chinese Academy of Sciences, said that the new energy storage technology will also be deeply integrated with artificial intelligence, big data, and cloud computing to achieve more efficient and smarter energy storage and utilization.
Digital technology enables the development of new energy storage, and inserts "smart wings" for new energy storage ". Chengdu's "Light Storage and Charging" Smart Microgrid Project has a full sense of science and technology on the spot. Photovoltaic canopies are stretching out and rows of new energy vehicles are charging in an orderly manner. Under the appearance of science and technology, hard core technology highlights the "smart" core, and the whole system of "optical storage charging and discharging" integrates cadmium telluride photovoltaic, echelon energy storage and electric vehicle charging and discharging, realizing the integrated interconnection of charging network, microgrid and energy storage network.
In Tangshan, Hebei Province, China's first electric heavy truck-type virtual power plant incarnate as an intelligent steward of power dispatch, integrating the scattered power grid.distributed photovoltaic, charging piles, energy storage and other power loads, the aggregation of 11 heavy card charging power station battery energy storage resources, relying on digital means, through intelligent algorithms precise control, flexible dispatch of power, reduce the grid peak-valley difference, promote the balance of power supply and demand and new energy consumption. At present, the maximum adjustment capacity of Tangshan electric heavy truck virtual power plant has reached 22300 kilowatts.
Recently, Chongqing, Guangdong, Fujian, Shandong and other places have issued virtual power plant related programs or implementation rules. Yang Kun, executive vice chairman of the China Electricity Council, said that as a new format and new model of energy intelligence, virtual power plants have a wide range of applications. In the context of the transformation of the grid structure to clean and low-carbon, the development of virtual power plants has important practical significance for promoting the balance of supply and demand of the grid, realizing the low-cost grid-connection of distributed energy, fully eliminating clean energy generation, and promoting the transformation of green energy.
Support the power system to reduce carbon supply
With the rapid development of new energy such as wind energy and solar energy, the impact of its intermittency and volatility on power grid security is becoming more and more prominent. At the same time, the impact of climate change factors and extreme weather on the planned production and operation of the power system will intensify, and the problems of power supply and system balance will become more prominent. The need to build a new energy storage system to ensure energy security and stable operation of the energy system is becoming more and more urgent.
The "Notice" pointed out that it is necessary to accurately grasp the positioning of the new energy storage function, combine the positioning of the new energy storage function and market requirements, further standardize the new energy storage grid-connected management, continue to improve the new energy storage scheduling mechanism, and strongly support the construction of the new power system.
In recent years, China's new energy storage industry has developed rapidly. According to data from the National Energy Administration, as of the end of 2023, the cumulative installed capacity of new energy storage projects has reached 31.39 million kilowatts/66.87 million kWh, which is equivalent to the installed capacity of 1.4 Three Gorges hydropower stations and can meet the electricity needs of 20 million households. The average energy storage time is 2.1 hours. The new installed capacity in 2023 is about 22.6 million kW/48.7 million kWh, an increase of more than 260 percent from the end of 2022.
Compared with traditional energy storage, the new energy storage has obvious advantages. NingxiaNingdong Energy BaseSuccessfully installed the power grid "multi-functional charging treasure", officially "on-line" the province's first network-type energy storage power station. According to the relevant person in charge, the grid-type energy storage power station breaks through the dependence of the traditional grid-type energy storage power station on the stable voltage and frequency provided by the power grid, and can not only charge and discharge efficiently and flexibly.Peak cutting and valley fillingIt can also provide core functional elements such as short-circuit capacity and moment of inertia for stable operation of the power system, and play the role of "active regulator" of the power grid.
Peak frequency regulation, power grid expansion, temporary emergency, new energy consumption ...... New energy storage application scenarios, a number of experts said, to adhere to the safety bottom line, play a good new energy storage in the construction of a new power system in the key role.
Multiple Subjects Promote Market Construction
Strengthen grid-connected dispatching coordination guarantee
Shaanxi Province issued the Implementation Plan for the Development of New Energy Storage in Shaanxi Province (2024-2025), proposing that by 2025, the total scale of grid-connected new energy storage should reach more than 2GW. Qinghai has launched a new one-stop grid-connected service mode for new energy sources. 100 of the new energy grid-connected projects in the province will be handled online, realizing "no running at all" and improving customer experience. Shandong Province has issued "Several Policies and Measures to Support for Healthy and encourage new energy stations and the full amount of energy storage to participate in power market transactions, force new energy enterprises to improve the utilization rate of energy storage in a market-oriented way, and promote the healthy development of new energy and energy storage joint entities......
All over the world to accelerate the layout of the new energy storage industry, in the promotion of new energy storage grid-connected services at the same time, in a market-oriented way to promote the new energy storage call.
Industry experts pointed out that with the steady progress of China's power market reform, the energy storage application market will continue to expand, and regions need to explore new business models such as shared energy storage, cloud energy storage and energy storage aggregation to adapt to development.
Shared energy storage breaks the traditional "one-to-one" correspondence between energy storage stations and power stations, and turns to a "one-to-many" relationship, which can meet the necessary storage requirements for new energy grid connection. This model has been rising in the new energy storage market in recent years, and the scale of grid connection has continued to expand.
The first shared energy storage station in Jiangsu has delivered more than 6000 million degrees of electricity to the grid; the first phase of the Leizhou centralized shared energy storage power station, the largest in South China, has been put into operation; the shared energy storage project in Jingyuan County, Ningxia has started with a total investment of 0.46 billion; the first independent shared energy storage demonstration project in Yunnan has started construction ...... Up to now, more than 15 provinces and regions, including Shandong, Hunan, Qinghai, Liaoning, Anhui, Henan, Zhejiang, Shanxi, Yunnan, Gansu, Hebei and Xinjiang, have issued policies related to shared energy storage.
A number of experts said that the key to the development of shared energy storage lies in a reasonable price formation mechanism and trading model, so that the beneficiaries can reasonably allocate the cost of energy storage and the investors can obtain reasonable returns, which requires the strengthening of coordination among new energy power plants, power grids and energy storage investors.
Liu Yong, Secretary-General of the Energy Storage Application Branch of the China Chemical and Power Industry Association, suggested that, based on the principles of ensuring supply, safety and consumption, shared energy storage should be used under the guidance of the construction of diversified market mechanisms, so as to maximize the number of times of charging and discharging of shared energy storage and ensure that shared energy storage "can be adjusted, adjusted and used for more purposes."
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