Ministry Of Industry And Information Technology: New Solar Energy Self-Consumption Ratio For Industrial Enterprises And Parks Should Be No Less Than 60% Annually

Guidelines for the Construction and Application of Industrial Green Microgrids (2026-2030)

Industrial green microgrids aim to provide green electricity to industrial users by integrating systems such as photovoltaics, wind power, efficient heat pumps, new energy storage, hydrogen energy, and waste heat, pressure, and gas recovery, along with smart energy management. They can integrate with industrial production processes, interact harmoniously with the power grid, and achieve collaborative autonomy as a comprehensive energy system. Promoting the construction and application of industrial green microgrids is an important way to facilitate low-carbon transformation in industrial energy use and to implement carbon peak goals in the industrial sector. It is also a crucial area for cultivating new driving forces for green development and forging new competitive advantages in industries, as well as an active choice for realizing local consumption of renewable energy and adapting to new power system requirements. To implement the "Action Plan for Green and Low-Carbon Development of the Manufacturing Industry (2025-2027)" and other relevant requirements, this guideline is formulated to promote the construction and application of industrial green microgrids.

I. Construction Principles

Promote efficient multi-energy complementary utilization. Coordinate the use of local solar energy, wind energy, hydrogen energy, and residual heat, pressure, and gas, to build a clean energy supply system with coordinated interaction for electricity, hydrogen, heating (cooling), and gas supply, effectively ensuring the diverse energy needs of industrial users.

Promote high-proportion local consumption of renewable energy. Conduct scientific analysis and assessment of industrial users' load conditions, reasonably plan the overall scale of industrial green microgrids and the proportion of wind power, photovoltaics, and new energy storage, and encourage industrial users to use a high proportion of clean energy.

Strengthen friendly interaction with electricity users. Possess the capability for self-balancing of electricity and power, as well as the potential for bidirectional services such as peak shaving, frequency regulation, and demand response, effectively alleviating pressure on the power grid. Explore participation in electricity market transactions as a new type of operating entity to enhance the economic efficiency of system operation.

Possess the ability to adjust industrial load. Large industrial users can reasonably arrange production schedules, optimize process flows, and cultivate adjustable loads to enhance the flexibility of end-use energy consumption. Promote bidirectional collaborative management of energy supply and demand, and reduce energy costs through measures such as peak shaving and valley filling, as well as demand management.

Improve the operational management level of digital intelligence systems. Utilize advanced digital intelligence technologies such as artificial intelligence, big data, and the Internet of Things to support high-level system management functions like power forecasting, optimized scheduling, and market transactions, promoting efficient, economic, and low-carbon operation of industrial green microgrids.

Section 2: Main Construction Content

The industrial green microgrid mainly includes facilities or systems such as renewable energy generation, industrial waste energy utilization, clean low-carbon hydrogen production and utilization, new energy storage applications, power conversion and flexible interconnection, and digital energy and carbon management.

Renewable energy generation.The annual local self-consumption ratio of newly built solar and wind renewable energy generation by industrial enterprises and parks should, in principle, not be less than 60%.In regions where the electricity spot market operates continuously, distributed photovoltaics can connect to the user-side grid through aggregation or supply electricity to users via dedicated lines. They participate in the spot market using a self-consumption surplus electricity grid connection model, with the on-grid electricity accounting for no more than 20% of the total available generation capacity. Continuous enhancement of the grid's capacity and regulation capabilities for renewable energy generation facilities is necessary to achieve "observable, measurable, adjustable, and controllable."

1. Photovoltaic Power Generation: According to the "Design Specification for Photovoltaic Power Stations" (GB50797), "Technical Regulations for Accessing Photovoltaic Power Stations to the Power System" (GB/T19964), and "Design Specification for Accessing Photovoltaic Power Stations to the Power System" (GB/T50866), photovoltaic power generation projects should be constructed in a manner that is suitable for local conditions, either as distributed or centralized projects. For distributed projects, construction should comply with the "Management Measures for the Development and Construction of Distributed Photovoltaic Power Generation" and make full use of buildings and their ancillary spaces, reasonably arranging the orientation, tilt angle, and height of photovoltaic modules, while encouraging the adoption of building-integrated photovoltaics. Centralized projects should make full use of surrounding unused land, gardens, and existing construction land, and carry out thorough planning and site selection, resource assessment, construction condition verification, and demand analysis as part of the preparatory work.

2. Wind Power Generation: Based on standards such as the "Design Code for Wind Power Plants" (GB51096), "Design Standards for Offshore Wind Farms" (GB/T51308), and "Technical Regulations for the Integration of Wind Farms into Power Systems" (GB/T19963), conduct refined wind resource assessments using long-term reliable meteorological data. In areas with abundant wind resources and stable wind directions, select wind turbines compatible with the wind resources for project construction. Encourage the adoption of land-saving, low-noise, high-efficiency, and intelligent wind turbines and technologies.

(2) Utilization of Industrial Waste Energy. Fully utilize the by-product gas and its sensible heat and residual pressure from coke ovens, blast furnaces, and converters in the steel industry; the waste heat from heating furnaces, cracking furnaces, ammonia synthesis gas production, calcium carbide furnaces, and sulfur/sulfide ores acid production processes in the petrochemical and chemical industries; the waste heat from electrolytic cell flue gases and casting furnaces in the non-ferrous metal industry; the waste heat from kiln exhaust gases in cement kilns, glass kilns, and ceramic kilns in the building materials industry; and other related industry waste slags and cooling water waste heat. Establish an efficient industrial waste energy recovery and utilization system. Among these, medium- to high-grade waste heat resources are prioritized for supply through pipeline facilities to nearby industrial enterprises within the region that have a demand for useful heat, to drive steam turbines, preheat air, dry materials, and other process equipment. The remaining waste heat, residual pressure, and residual gas resources are used for power generation, integrated into energy storage, or supplied for heating (cooling), and hot water. The use of industrial heat pumps to recover waste heat from wastewater and waste gas for the preparation of high-temperature steam is encouraged. Actively promote the application of heat pumps in heating process stages (with heating demands below 150°C) in the petrochemical and chemical, textile and dyeing, food processing, paper manufacturing, and pharmaceutical industries.

(iii) Clean and Low-carbon Hydrogen Production and Utilization. Under the premise of aligning with industrial structural adjustments, orderly construction of integrated "hydrogen production + hydrogen utilization" projects in areas rich in clean energy such as wind and solar power. Promote the scalable purification of industrial by-product hydrogen like coke oven gas, chlor-alkali tail gas, and propane dehydrogenation according to local conditions. Based on the distribution of hydrogen sources and hydrogen load, rational deployment of diverse hydrogen storage, hydrogen fuel cells, hydrogen internal combustion engines, and other storage and power generation facilities. Industrial enterprises and parks with necessary conditions can take the lead in establishing the green electricity-green hydrogen-green ammonia/alcohol industry chain, exploring the miniaturization and distributed production and application of green ammonia, and developing small-scale skid-mounted, modular production devices. Promote the development and application of high-efficiency water electrolysis hydrogen production devices, high-efficiency fuel cell power generation facilities, and integrated flexible hydrogen production systems from wind and solar energy.

(4) Application of new energy storage. Based on standards such as the "Design Standard for Electrochemical Energy Storage Stations" (GB/T51048), "Safety Requirements for Lithium Batteries and Battery Packs for Energy Storage Systems" (GB44240), "Lithium-ion Batteries for Electric Power Storage" (GB/T36276), and "Technical Regulations for Electrochemical Energy Storage Station Grid Integration" (GB/T36547), new energy storage systems are configured in single or multiple ways according to construction scale and functional requirements such as renewable energy absorption, frequency/voltage support, and thermal/cooling load adjustment. For renewable energy absorption needs, lithium-ion batteries, flow batteries, hydrogen storage, compressed air, and other storage methods can be selected based on typical daily electricity load curves and renewable energy output characteristics to achieve peak shaving and valley filling and cross-period utilization of green electricity. For frequency/voltage support needs, lithium-ion batteries, flywheel storage, supercapacitors, and other storage methods can be chosen based on frequency fluctuation deviation values and support time requirements to enhance the system's active/reactive power regulation capabilities, improving power quality and supply reliability. For thermal/cooling load adjustment needs, molten salt thermal storage, ice storage, and other methods can be selected based on thermal/cooling load scale, fluctuation characteristics, and adjustment time requirements. Promote the innovative application of sodium-ion batteries, vanadium-titanium batteries, lithium capacitors, and solar thermal storage in industrial green microgrids.

(V) Power Conversion and Flexible Interconnection. According to standards such as "Functional Specifications and Technical Requirements for Energy Routers" (GB/T40097) and "Functional Requirements for Energy Exchange Devices in Energy Internet" (DL/T2937), configure power conversion devices based on the topology of industrial green microgrid bus/feeder structures, voltage levels, and the requirements for power conversion and control. These devices should have intelligent control functions for AC/DC power transmission, distribution, path selection, and electrical parameters such as voltage, current, and power. In cases of overloaded distribution transformers, flexible interconnection devices can be configured for medium and low voltage to achieve flexible power dispatch, optimize power quality, and facilitate power interconnection and mutual assistance, enhancing the carrying capacity of distributed resources within the region and supporting load transfer under heavy overload on bus/feeder lines as well as during faults or planned outages.

(6) Digital Energy and Carbon Management. Based on the "Guidelines for the Construction of Digital Energy and Carbon Management Centers for Industrial Enterprises and Parks" and relevant standards, digital energy and carbon management centers should be established. By applying advanced technologies such as artificial intelligence, big data, and the industrial internet, precise measurement, refined control, intelligent decision-making, and visual presentation of energy supply, transmission, and consumption are achieved. The system includes modules for power generation management, load management, energy storage management, power and electricity price forecasting, power usage planning, statistical analysis and evaluation, and information dissemination. The load management module should have functions for energy consumption analysis and energy use strategy recommendations, energy efficiency benchmarking, energy efficiency balancing and optimization, carbon emissions, and carbon footprint accounting. The power and electricity price forecasting module should reasonably forecast renewable energy generation capacity, load capacity, and market electricity prices, effectively reducing operating costs, lowering system line losses, and the probability of unplanned power outages, and quickly optimizing power generation and usage. It should flexibly adjust industrial production and energy use control strategies as needed. The industrial green microgrid should establish a unified data interface and communication protocol with the regional power grid dispatch platform to ensure real-time information sharing.

III. Construction Model

Industrial green microgrids should carry out planning and construction in accordance with the requirements for the coordinated development of main and distribution microgrids. The construction model mainly includes self-financed and self-built types and third-party co-construction types, depending on the construction and operation model. During the project construction and operation process, the project approval or filing authority is responsible for supervising the safety of project construction and operation. The operation involving the grid must meet the safety management requirements of the electricity industry and be subject to supervision by the electricity regulatory authority.

1. Self-funded and self-built model. Industrial enterprises or parks independently invest in construction and operate autonomously, with the primary goal of increasing the proportion of green electricity usage and ensuring reliable power supply. This model is suitable for single enterprises or parks with concentrated energy consumption and stable loads. During operation, the industrial enterprise or park serves as the responsible entity, managing the operation and maintenance of power generation, energy storage, and other facilities, while prioritizing the local consumption of clean energy. They also participate scientifically in medium- and long-term electricity market transactions, spot markets, and ancillary services. For example, in areas with high industrial loads and favorable renewable energy conditions, industrial enterprises or parks can explore the construction of integrated projects for power source, grid, load, and storage, as well as green electricity direct connection projects, in accordance with relevant regulations such as the "Guiding Opinions on Promoting Integrated Development of Power Sources, Grids, Loads, and Storage and Multi-energy Complementarity." This allows for the full exploration of load adjustment capabilities and the exploration of new integrated operation and aggregation management models like virtual power plants.

(2) Third-party co-construction model. Industrial enterprises or parks collaborate with qualified third-party service companies to carry out project planning, investment, construction, and operation through contract energy management, financing leasing, and other models. Industrial enterprises or parks ensure the construction of supporting facilities, access, and site implementation, while third-party service companies are responsible for system planning and design, as well as engineering construction. During operation, third-party service companies undertake the operation and regulation of the industrial green microgrid and daily maintenance, and provide energy-saving diagnostics, financing, and transformation services. The proportion of renewable energy consumption is implemented according to relevant policies, and market-oriented benefits are determined through negotiation between both parties. For example, export-oriented industrial enterprises and parks can collaborate with third-party service companies and renewable energy generation enterprises to explore the utilization of surrounding clean energy resources for direct green electricity connection in accordance with the provisions of the "Notice on the Orderly Promotion of Green Electricity Direct Connection Development."

Application Scenarios

(1) High-energy consumption application scenarios in enterprises or industrial parks such as steel, petrochemical, chemical, building materials, and non-ferrous metals. In this scenario, industrial loads are characterized by large-scale, high energy consumption, operating continuously at high intensity during the production cycle. The complexity in the coupling of multiple energy flows such as electricity, heat, and gas is due to the numerous production processes involved. An industrial green microgrid should utilize the resources of waste heat, waste pressure, and waste gas within the factory and provide a large scale of green power. For example, industries like steel, cement, and copper smelting should efficiently recover and utilize by-product energy resources within the factory such as coke oven gas, blast furnace gas, top pressure, sintering waste heat, high-temperature flue gas, and slag waste heat. These can be used for heating hot blast stoves, preheating raw materials, power generation, or as heat source compensation in smelting processes to improve energy resource utilization efficiency. The use of rooftop and slope spaces within the factory to build photovoltaic power generation facilities should be maximized to reduce reliance on fossil energy and external power supply, constructing a "waste energy utilization + renewable energy generation + new energy storage" multi-energy complementary model. Deploying intelligent energy management systems can conduct energy efficiency assessments, load forecasting, and intelligent staggered scheduling for major energy-consuming processes such as smelting, sintering, and distillation, achieving comprehensive balancing and intelligent management of multiple energy flows including electricity, heat, and gas.

(2) Flexibility application scenarios for enterprises or industrial parks in machinery, light industry, textiles, automobiles, battery manufacturing, etc. In this scenario, industrial loads are characterized by flexibility and discreteness, allowing energy plans to be flexibly arranged according to production plans or order cycles, with certain demand-side response potential. The industrial green microgrid should have strong capabilities in clean energy output and load forecasting, as well as resource optimization. For example, machinery and automobile companies can reasonably configure interruptible load management platforms and energy storage facilities for intermittent electricity demands of specific processes such as painting, welding, injection molding, and hot pressing. They can flexibly adjust production schedules based on renewable energy output, peak and off-peak electricity prices at different time scales, enhancing the proportion of renewable energy consumption and reducing production energy costs. Industrial enterprises with flexible production characteristics, such as textiles and battery manufacturing, can implement smart production line transformations, dynamically adjusting production strategies based on order volume, material supply, and energy supply conditions, thereby improving the overall energy efficiency of the system.

(3) Scalable and adjustable application scenarios for enterprises or industrial parks such as electrolytic aluminum, polysilicon, and water electrolysis for hydrogen production. In this scenario, industrial load production processes are continuous and highly tolerant to short-term power fluctuations, allowing for rapid adjustments in power. Industrial green microgrids should fully leverage the advantages of load flexibility, participating as scalable real-time adjustment resources in power demand response and auxiliary services, thereby strengthening deep and friendly interaction with the grid. For example, utilizing the wide adjustment characteristics of water electrolysis for hydrogen production, operating load can be quickly reduced or increased while ensuring process safety, making full use of renewable energy generation during peak times to alleviate grid operating pressure; utilizing the intermittent operation characteristics of polysilicon reduction furnaces, startup and shutdown times and operating durations can be adjusted as needed to achieve controllable staggered production processes; relying on intelligent energy management systems, the operating strategies of large-capacity adjustable devices such as electrolytic aluminum can be proactively adjusted according to peak and valley electricity prices, reducing load during peak periods and resuming production during off-peak periods.

(IV) High-reliability application scenarios for computing power facilities and other enterprises. In this scenario, industrial loads are characterized by high reliability and non-interruption, with production processes relying on precision equipment that operates continuously for long periods. There are high requirements for power quality, such as current harmonics, and sensitivity to abnormal conditions such as instantaneous interruptions. Industrial green microgrids should possess capabilities for power quality management, rapid fault isolation, and backup power support, ensuring a good match between supply and demand and conducting power quality analysis to build an efficient and reliable power system. For example, computing power facilities can construct a multi-level fault-tolerant architecture of "main grid power supply + distributed photovoltaic + electrochemical energy storage + uninterruptible power supply" to achieve zero-gap switching of power supply; through intelligent energy management systems, they can scientifically assess the characteristics of various energy storage applications, such as uninterruptible power systems and lithium-ion batteries, to realize reasonable allocation and flexible scheduling of diversified energy storage; and continuously explore technologies such as waste heat recovery on the cold source side and absorption refrigeration to enhance the overall efficiency of energy utilization.

V. Construction Requirements

(1) Strictly adhere to standards and regulations. The construction and application of industrial green microgrids should strictly comply with current policies and standards for microgrids, integrated source-grid-load-storage systems, and direct connection to green power. Clear delineation of safety and economic responsibility boundaries with the main grid is essential. Adherence to standards for planning and design, construction acceptance, operational control, equipment maintenance, inspection and testing, and safety management is crucial. Compliance with technical specifications related to microgrids, clean energy generation, energy storage, and integration into the power system, as well as mandatory national standards for energy facility construction, safety protection, and hazardous chemical management, is required.

(2) Accelerate the application of advanced technologies. Promote the application of technologies such as clean and efficient power generation, clean energy power generation grid integration, advanced energy storage equipment and reliability evaluation, microgrid planning, design and simulation, flexible load control, and economic operation and optimization scheduling of microgrids. Drive the integration and application of new-generation information technologies such as artificial intelligence, cloud computing, big data, intelligent sensing, 5G, and industrial internet, facilitating innovation and iteration in industrial data sets and specialized large models in the industrial sector, and enhancing the intelligence level of systems.

(3) Ensure safe and reliable operation. Strictly implement regulations and systems for cybersecurity management, and establish a safety management system for industrial green microgrids that covers all links and processes to ensure the safe and reliable operation of the project and achieve "friendly grid connection." Strengthen the verification of core equipment documentation and technical parameters to ensure that equipment performance is consistent with technical requirements. Strictly adhere to requirements for thermal runaway protection in energy storage systems and electromagnetic compatibility in power electronic devices. Develop cybersecurity risk plans for key scenarios and critical links, and enhance the cybersecurity protection of important systems as well as the identification and protection of critical data.

4. Achieving economic rationality and feasibility. Strengthen cost-benefit analysis of industrial green microgrids, actively guide social capital to participate in project construction, and continuously optimize investment structures and operational models. Actively expand multiple revenue channels such as power market ancillary services, green power trading, and energy trading to shorten the investment recovery period and eliminate inefficient and redundant construction.