The relationship between new power system and new energy system from energy-carbon-number perspective

Low-carbon power to promote the development of energy conservation and efficiency services. With the gradual improvement of the electricity market and market mechanisms such as green electricity and green certificates, the market-oriented electricity price formation mechanism will also be gradually established and improved, and end users will be more sensitive to energy use types, energy use periods, energy efficiency, green attributes, etc., and the demand for energy saving and efficiency services will increase. We will promote the development and growth of industries such as energy conservation and environmental protection, clean production, clean energy, ecological environment, and green upgrading of infrastructure. We will promote the development of new business forms and models such as energy-saving diagnosis, energy-saving renovation and design, energy hosting, and load aggregation, and promote the improvement of the energy efficiency of new infrastructure.

■■ Digital perspective - The new power system is

An important engine for the digital transformation of new energy systems

Electric power digitization supports multi-function collaboration and complementarity. The premise of multi-energy collaboration is to fully grasp the operating status and regulatory characteristics of different energy categories. By using micro-sensors and iot networks in the power system, real-time operation data collection of various energy equipment can be realized, and comprehensive modeling analysis, online state estimation and energy flow analysis covering various energy sources such as electricity, heat, cold and gas can be realized. Give full play to the characteristics of different energy varieties and realize complementary advantages, and improve the comprehensive utilization efficiency of energy.

The digitalization of electricity supports the interaction of energy production, supply, storage and marketing. In the production link, centralized and distributed simultaneously is the basic principle of current energy development, and the digitized power system will play an important role in the mutual benefit of scenery, water and fire. In the consumption link, the use of digital technology to improve the spatio-temporal adjustment ability of various energy resources is particularly critical. In the transport sector, digital technologies are needed to enhance perception, monitoring and control. For the system as a whole, production and supply coordination, production and marketing interaction and other interactive ways need to be solved through the organic combination of digitalization and marketization.

Power digital support to achieve multi-network integration and interconnection. The integration of various energy networks, transportation networks (vehicle networking), industrial Internet, etc., requires data as a link. Micro-sensing and intelligent terminals can provide flexible, convenient, accurate and efficient edge perception and control capabilities for new energy systems, and form nerve endings covering multi-network fusion and interconnection. The power Internet of Things provides an information aggregation platform for large-scale information access and collection of new energy systems, and provides the basis for multi-network integration and interconnection.

Power digital support energy demand intelligent control. In the future, the proportion of traditional energy gradually decreases, and energy storage can only be used as a means of adjustment on a short time scale, and the adjustment capacity of the system will be difficult to meet the rigid demand on the load side, which will inevitably put forward requirements for flexible adjustment on the demand side, including adjustment on various time scales. By using advanced digital interconnection technology, different types of flexible resources such as platform aggregate energy storage system, controllable load, electric vehicle and distributed new energy can be built to participate in system adjustment, which can realize economic energy use, green energy use and flexible electricity consumption.

Electric power digitization supports statistical accounting of energy carbon emissions. Based on the correlation between the power industry and energy activities, economic production and consumption, the power-energy-carbon analysis model is constructed, and the advantages of power big data such as strong real-time, high accuracy, high resolution and wide collection range can be utilized to achieve accurate analysis and dynamic monitoring of carbon emissions and support the statistical accounting of carbon emissions in the energy field at a full scale.