Operation Guide of Zero-carbon Industrial Park —— Based on the Development of Wuxi Zero-carbon City Park

As early as March 2020, Wuxi took the lead in proposing the goal of building a "zero-carbon city" among cities in China. Relevant news materials show: "According to the research on the peak of carbon emissions in Wuxi, Wuxi has a high probability of reaching the peak in 2026 without major economic fluctuations and technological breakthroughs, with the peak scale ranging from 65.438+0.2 billion to 65.438+0.3 billion tons (carbon dioxide)."

In 2020, the total economic output of Wuxi will be about 1.23 trillion yuan. Energy activities are the largest source of greenhouse gas emissions in Wuxi, accounting for 93.6% of the total emissions. The electricity consumption in Wuxi has been increasing rapidly since the electricity data was recorded. In 2020, the electricity consumption of Wuxi society will be 76 billion kWh, and the maximum load will reach1345,430 kW, both of which have reached record highs. Wuxi is a typical representative of economically developed areas in eastern China. The energy needed for its economic development mainly depends on fossil energy, and a large amount of electricity demand comes from outside the region, making energy transformation difficult. In terms of green energy structure, in 2020, the installed capacity of coal-fired power in Wuxi will exceed 50%, reaching 5 1.2%, and the installed capacity of new energy such as wind power and solar energy will only account for 13.5%. The development of green energy still needs to strengthen structural adjustment. Therefore, to build a "zero-carbon city" in Wuxi, it is necessary to further strengthen industrial structure adjustment and digital construction, especially to develop industries that help reduce energy consumption and carbon emissions.

During the 20021Municipal People's Congress, Wuxi City proposed that it would actively promote the strategic plan of "peak carbon dioxide emission, carbon neutrality", compile and implement the action plan of peak carbon dioxide emission, and take the lead in exploring the establishment of a zero-carbon fund and a zero-carbon science and technology industrial park. Among them, Wuxi High-tech Zone also indicated that it is actively planning to set up a zero-carbon science and technology industrial park, build a well-known zero-carbon science and technology cluster and industrial demonstration zone in the Yangtze River Delta and even the whole country, and actively strive for a national-level green industry development demonstration base and a national high-tech zone green development demonstration park.

Zero-carbon building is an extremely complex and advanced innovative project. First, the first step of the zero-carbon strategy is to reduce carbon at the source. No matter in other fields such as construction, transportation or industrial production, the core of achieving zero carbon is the transformation of energy structure. The choice of energy structure can be in non-fossil energy such as wind power, hydropower and solar energy, and the reasonable structural proportion can be adjusted. Looking ahead, the concrete implementation of zero-carbon industrial park can start with energy structure, low-carbon technology, intelligent supervision, pollution reduction and carbon reduction.

Energy structure transformation: in the construction of zero-carbon park, gradually increase the proportion of non-fossil energy in the energy structure of the park, pay attention to the relevant policies of national and local governments for green electricity purchase, and carry out green electricity purchase when conditions are ripe.

Vigorously promote clean energy: promote clean heating in the park by building supporting facilities including roof photovoltaic and hydrogen energy according to local conditions, continue to promote clean heating, expand the scope of centralized heating, and implement clean heating methods such as replacing coal with gas, replacing coal with electricity, Geder coal and concentrated biomass according to local conditions.

Developing energy-saving and energy-storage technology: By coordinating process links, optimizing production organization and enjoying the process, the comprehensive utilization of energy in the park will be realized from point to area. Among them, the development of energy storage technology is also the key to promote the upgrading of energy structure.

Energy saving at the manufacturing level

Carbon emission analysis: according to the quantitative standard of carbon footprint, analyze and calculate the carbon emission of the whole life cycle of the product.

Process * * * Enjoyment: unified planning and layout of the links that can be enjoyed.

Recovery: the production materials in the park are recovered 100%.

Green building energy saving

Passive design: use natural lighting, natural ventilation and thermal insulation of envelope to reduce the energy demand of buildings.

Green materials: on the premise of adopting green products and meeting quality requirements, increase the proportion of recycled materials.

Photovoltaic building: all public lighting adopts "wind photovoltaic power generation +LED lights".

Energy-saving system: lighting systems in corridors, stairwells, foyers, lobbies, large spaces, parking lots and other places adopt energy-saving measures such as zoning, timing and induction to save energy.

Intelligent transportation level energy saving

Access control: vehicles with excessive exhaust pollutants or vehicles with substandard environmental protection credit are not allowed to enter the park.

In terms of facilities construction: increase investment in the construction of charging piles, gas filling stations and hydrogen filling stations in and around the park.

In vehicle management: encourage enterprises to use electric vehicles or hydrogen-powered vehicles and enjoy pure electric buses.

Carbon capture and utilization

Carbon capture: capture before combustion, capture after combustion, oxygen-enriched combustion and chemical chain capture.

Carbon transport: transport the captured CO2 to a usable or sealed place.

Carbon utilization: The captured CO2 will be used as a resource through engineering and technical means.

Supply: It mainly includes distributed photovoltaic power generation system, breeze wind power generation system, wind and light complementary street lamps, intelligent charging piles, lithium battery energy storage system and hydrogen energy storage system.

Monitoring: Establish the carbon emission index system and carbon application in the park, and provide method support and system framework for subsequent industrial chain optimization and digital carbon emission reduction.

Management: based on all kinds of energy data in the park, comprehensive dispatching and energy consumption management optimization are carried out.

Services: Use relevant carbon data management, carbon accounting model, carbon footprint traceability and other indicators to help decision makers complete intelligent decision-making, and equip them with service capabilities such as park carbon accounting, scene carbon emission reduction and carbon neutral path planning.

Wastewater level

Diversion management: rainwater and sewage diversion, domestic wastewater and industrial wastewater diversion.

Classified treatment: the wastewater produced in the production process is classified according to the water quality.

* * * Enjoy the pilot project: Carry out the pilot project of * * * Enjoy the shared process facilities and collect and treat wastewater in a unified way.

Air pollutant level

Central heating: waste gas is collected and treated in a unified way, and part of the energy in the park is utilized step by step.

* * * Enjoy the pilot project: Carry out the pilot project of * * * enjoy the shared process facilities, and collect and treat the waste gas in a unified way.

Solid waste level

General industrial solid waste: eliminate the discharge and stacking of industrial solid waste and realize the classified collection of general industrial solid waste 100%.

Hazardous waste: Establish temporary storage facilities for hazardous waste * * * Enjoy the pilot, and the whole process can be traced back to digital management.

Soil groundwater level

Key enterprises of soil pollution: when exiting, the exit investigation of soil and groundwater must be carried out and publicized.

Non-soil pollution key enterprises: regularly carry out investigation and monitoring of hidden dangers of soil and groundwater.

The construction of zero-carbon park is not only the construction content of the above-mentioned major levels, but also the current conditions and resource elements of the existing parks in the concrete implementation and construction, so as to carry out reasonable gradient upgrading. At present, there are also a number of low-carbon parks in China, such as Beijing Goldwind Yizhuang Smart Park, Fujian Three Gorges Offshore Wind Power International Industrial Park, Shandong State Grid Dezhou Power Supply Company Industrial Park, Shanghai China Flower Expo Park and Jiangsu Dafeng Carbon Neutralization Industrial Park, which can be used for reference in concrete implementation.