Source Network Load Storage
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The integration of power supply, power grid, load and energy storage means that the power supply, power grid, load and energy storage can more economically, efficiently and safely improve the power dynamic balance ability of the power system through multiple interaction forms, such as source-source complementarity, source-network coordination, network-load interaction, network-storage interaction and source-load interaction. Essentially, it is an operation mode and technology to achieve the maximum utilization of energy resources. So as to increase the proportion of renewable energy consumption and promote the coordinated and sustainable development of energy and ecological environment.
On the whole, the operation mode of "integration of source, network, load and storage" can give full play to the regulation capacity of the power generation side and load side, promote the accurate matching of supply and demand sides, and ensure the reliable supply of electricity.

Background
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In order to achieve the goal of "carbon dioxide emissions strive to reach the peak by 2030, and strive to achieve carbon neutrality by 2060", we will strive to build a clean, low-carbon, safe and efficient energy system, improve the level of clean energy utilization and the efficiency of power system operation, implement the new development concept, and better play the role of integration of source, network, load and storage and multi-energy complementation in ensuring energy security. In March 2021, the National Development and Reform Commission and the National Energy Administration jointly issued the Guiding Opinions of the National Development and Reform Commission and the National Energy Administration on Promoting the Integration of Load and Storage of Power Sources and Networks and the Complementary Development of Multi-energy, which is considered to be the first national guidance on load and storage of power sources and networks. In order to ensure the safe, stable and efficient operation of the power system, it is necessary to accelerate the integration of load and storage of the source network and the development of multi-energy complementation, ensure the smooth consumption of large-scale new energy, and develop the work related to load and storage of the source network.

The Significance of Developing Source Network Load Storage
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The integration of source, network, load and storage and the development of multi-energy complementation are the internal requirements of the power industry to adhere to the system concept, the objective need to achieve high-quality development of the power system, the inevitable choice to improve the level of renewable energy development and consumption and the proportion of non-fossil energy consumption, and are of great significance to promote China's energy transformation and economic and social development.