New Regulations and Policies | Nanning Announces Support for the Application of Cadmium Telluride and Perovskite Thin-Film Solar Cell Technology and Equipment in the Construction Sector

Recently, the Nanning Municipal Housing and Urban-Rural Development Bureau and the Nanning Municipal Development and Reform Commission of Guangxi Province issued the "Nanning City Carbon Peaking Implementation Plan." The notice explicitly calls for promoting the integrated construction of solar photovoltaics in buildings, promoting clean, low-carbon heating methods such as water-source heat pumps and solar energy according to local conditions, orderly developing distributed rooftop photovoltaics, and promoting the high-quality application of rooftop photovoltaics in buildings; and supporting the application of perovskite, cadmium telluride, and other thin-film solar cell technology and equipment in the construction sector.

With the proposed "carbon peaking" and "carbon neutrality" goals in my country, all industries are transitioning to green and low-carbon development. Buildings, as major carbon emitters, are undoubtedly a key factor in achieving the "dual carbon" goals. Against this backdrop, the green transformation of the construction industry presents new development opportunities for building-integrated solar (BIPV). Power-generating glass, based on cadmium telluride and perovskite thin-film solar cell technology, is a new green building material that converts sunlight into electricity.

Cadmium telluride and perovskite solar-generating glass can be applied to building exterior walls, windows, roofs, and other areas, enabling self-generated electricity generation for buildings or grid-connected power. Dubbed "wall-mounted oil fields," they are a crucial component of future urban architecture. The principle is to evenly apply or coat ordinary glass with cadmium telluride or perovskite photovoltaic materials, transforming the previously insulating glass into a conductive conductor. This absorbs visible and ultraviolet light from sunlight and converts it into electricity, generating electricity.

Notably, unlike traditional crystalline silicon solar cells, cadmium telluride and perovskite solar-generating glass can achieve photoelectric conversion even in low-light conditions, truly achieving "where there is light, there is electricity," thus possessing broad application prospects.

Firstly, cadmium telluride and perovskite solar-generating glass can enable self-generated electricity generation for buildings or grid-connected power generation, thereby reducing reliance on traditional energy sources and lowering energy consumption and emissions. Secondly, cadmium telluride and perovskite power-generating glass can be applied to building exterior walls, windows, roofs, and other areas. Not only does it generate electricity, it also provides insulation, sunshade, and thermal insulation, improving energy efficiency and comfort, truly transforming building materials from "energy-saving" to "energy-creating." Furthermore, cadmium telluride and perovskite power-generating glass can also be used in transportation, electronic equipment, and other fields, contributing to energy conservation and emission reduction across various industries.

As a technological innovation in the fields of new energy and new materials, Zhongmao Green Energy Technology (Xi'an) Co., Ltd., based in the Qinchuangyuan main window in the Xixian New District, is committed to "enhancing value through technology and transforming lives through green development." Collaborating with renowned universities such as Xi'an Jiaotong University, the company integrates industry, academia, and research to develop, produce, and manufacture thin-film solar cell chips. The company focuses on the research and development and application of CdTe thin-film photovoltaic modules, conducting technological research and promoting the commercialization of these technologies. Its cell conversion efficiency has reached internationally leading levels.

After years of development, Zhongmao Green Energy Technology's cadmium telluride solar glass products boast strong power generation capacity and high safety performance. They can be flexibly customized to meet customer needs in terms of color, pattern, shape, size, and light transmittance, creating enormous potential and opportunities for the construction, industrial, and other sectors. Driven by favorable policies, demand for cadmium telluride thin-film photovoltaic modules will further expand in the future. Zhongmao Green Energy Technology will establish its presence in the Xixian New Area and expand nationwide, aiming to make every city a green city that integrates ecology and technology, and jointly usher in a green and sustainable future.

Attachment: The full text of Nanning City's "Nanning City Carbon Peaking Implementation Plan for Urban and Rural Construction" is as follows:

Urban and rural construction is one of the main sources of carbon emissions. To thoroughly implement Xi Jinping Thought on Ecological Civilization and the decisions and deployments of the Party Central Committee and the State Council on carbon peak and carbon neutrality, this implementation plan has been formulated in accordance with the "Notice of the Ministry of Housing and Urban-Rural Development and the National Development and Reform Commission on Issuing the Carbon Peak Implementation Plan for Urban and Rural Construction," the "Implementation Opinions of the Guangxi Zhuang Autonomous Region Committee of the Communist Party of China and the People's Government of Guangxi Zhuang Autonomous Region on Completely, Accurately and Comprehensively Implementing the New Development Concept and Doing a Good Job in Carbon Peak and Carbon Neutrality," the "Guangxi Zhuang Autonomous Region Carbon Peak Implementation Plan," the "Guangxi Zhuang Autonomous Region Carbon Peak Implementation Plan for Urban and Rural Construction," the "Nanning City Carbon Peak Implementation Plan for Completely, Accurately and Comprehensively Implementing the New Development Concept and Doing a Good Job in Carbon Peak and Carbon Neutrality," and the actual situation in Nanning. This plan aims to steadily advance carbon peak efforts in urban and rural construction in Nanning and control the growth of carbon emissions in this sector.

I. Overall Requirements

(I) Guiding Ideology Adhere to the guidance of Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era, fully implement the spirit of the 20th National Congress of the Communist Party of China, thoroughly implement the requirements of General Secretary Xi Jinping on major strategies for Guangxi, focus on the "1+1+4+3+N" target task system for building a magnificent Guangxi in the new era, fully implement the deployment requirements of the Seventh Plenary Session of the 12th Autonomous Region Party Committee and the Seventh Plenary Session of the 13th Municipal Party Committee, adhere to the general working tone of seeking progress while maintaining stability, based on the new development stage, fully, accurately and comprehensively implement the new development concept, actively serve and integrate into the new development pattern, adhere to ecological priority, conservation priority, protection priority, adhere to the harmonious coexistence of man and nature, and firmly Maintaining a systematic approach, we will better coordinate the relationships between development and security, development and emission reduction, the overall and local, the short-term and medium- to long-term, and the government and the market. Guided by green and low-carbon development, we will prioritize effectiveness, strengthen practical action, and ensure implementation. We will advance Nanning's urban renewal and rural development initiatives, accelerate the green transformation of urban and rural development models, improve the quality of green and low-carbon development, promote industrial upgrading, and ensure positive results in achieving carbon peak in urban and rural construction. We will make due contributions to the capital city of Guangxi in building a magnificent socialist Guangxi with Chinese characteristics in the new era and strengthening my country's important ecological barrier in southern China, continuously meeting the people's needs for a better life.

(II) Working Principles

- Adhere to systematic planning and step-by-step implementation, give full play to the guiding role of planning, strengthen results-oriented control, scientifically and rationally determine the pace of work and target tasks, and comprehensively promote the achievement of carbon peak in the construction sector.

- Adhere to local conditions and differentiated approaches based on specific categories, distinguish between urban and rural areas, and scientifically determine energy conservation and carbon reduction requirements.

-- Adhere to innovation-driven, transformative development, strengthen core technology breakthroughs, improve technological systems, enhance institutional innovation, improve carbon emission management systems for urban and rural construction, and steadily, orderly, and gradually transform urban and rural construction methods.

- Adhere to a dual-engine drive and joint efforts, give full play to the role of government leadership and market mechanisms, establish an effective incentive and constraint mechanism, implement shared development and sharing, coordinate and advance various tasks, leverage the unique regional advantages, and coordinate green and low-carbon cooperation, such as building an international metropolis open to cooperation with ASEAN and the China-ASEAN Cross-Border Industrial Integration Development Cooperation Zone.

- Adhere to coordinated advancement and prioritize conservation. Fully and accurately understand the profound impact of the national and autonomous region's "dual carbon" strategies on economic and social development, implement the principle of prioritizing conservation, prioritize energy and resource conservation, and give full play to the leading and driving role of energy conservation.

(III) Key Objectives

By 2025, the energy efficiency of new buildings will steadily improve, green buildings will develop evenly across urban and rural areas, green building materials will be widely used, the entire green building industry chain will be further extended, energy-saving and green renovations of existing buildings will be orderly advanced, renewable energy applications in buildings will be scaled up and integrated, the building energy consumption structure will gradually become cleaner and lower-carbon, and new progress will be made in the research, development, and promotion and application of green and low-carbon technologies. All new urban and residential buildings in the city will fully comply with green building standards. Green and low-carbon construction technologies will be widely promoted and applied.

Before 2030, carbon emissions from urban and rural construction will peak in the city. A policy framework and institutional mechanisms for green and low-carbon development in urban and rural construction have been basically established. Building energy conservation and waste resource utilization have significantly improved, with energy and resource utilization efficiency reaching the national average and leading the region. Energy consumption structures and methods have been further optimized, with renewable energy being more fully utilized. Positive progress has been made in the green and low-carbon transformation of urban and rural construction models. The "massive construction, massive consumption, and massive emissions" pattern has been essentially reversed. The city's overall, systematic, and growing character has been enhanced, and the problem of "urban ills" has been initially addressed. Building and project quality have been further improved, significantly improving the quality of the living environment. A green lifestyle has become widespread, and green and low-carbon operations have been initially achieved.

By 2060, we strive to fully achieve a green and low-carbon transformation of urban and rural construction models across the city, establish a beautiful living environment, fully implement modern carbon emission management in urban and rural construction, and enhance people's well-being.

II. Promoting the Green and Low-Carbon Transformation of Urban Construction Models

(IV) Optimizing Urban Structure and Layout. Urban form, density, functional layout, and construction methods have a fundamental and significant impact on carbon emission reduction. Advocate green and low-carbon planning and design concepts, actively carry out green and low-carbon city construction, and promote cluster development. The area of each cluster shall not exceed 50 square kilometers, and the average population density within the cluster shall not exceed 10,000 people/square kilometer in principle, and the maximum population density in individual areas shall not exceed 15,000 people/square kilometer. Implement the strictest system of economical and intensive land use. Strengthen the rigid constraints of national land space planning, optimize land use structure and spatial form, form a multi-center, cluster-based, grid-based, and intensive urban spatial pattern, and promote the intensive and efficient use of construction land. Optimize the layout of land use in various types of parks to achieve industrial-city integration, commercial-residence balance, and functional integration. In project access and construction land approval, strictly implement and implement relevant industrial policies of the state, autonomous region, and Nanning City, strictly control the access of high-energy consumption, high-pollution, and overcapacity projects, strictly implement construction land control indicators, and reduce the generation of new stock land at the source. In national land space planning, ecological corridors, landscape corridors, ventilation corridors, waterfront spaces, and urban greenways should be comprehensively planned, leaving ample ecological space for urban rivers and lakes and for flood control and drainage. Ecological corridors between clusters should be continuous and have a net width of at least 100 meters. Urban ecological restoration should be promoted to improve urban ecosystems. New super-high-rise buildings should be strictly controlled, and super-high-rise residential buildings should generally not be built. New building designs should comply with the requirements of the "Notice on Further Strengthening the Management of Urban and Architectural Landscapes by the Ministry of Housing and Urban-Rural Development and the National Development and Reform Commission." New towns and new districts should rationally control the ratio of employment to residence, promoting a balanced integration of employment opportunities and residential space. Urban rapid arterial transportation, lifestyle-oriented transportation, and green slow-moving transportation facilities should be rationally planned. The road network density in the main urban area should be greater than 8 kilometers per square kilometer. Urban slow-moving transportation system planning should be improved, with rationally designated parking areas for motor vehicles and non-motor vehicles, and strengthened effective integration with other modes of transportation to prevent and alleviate traffic congestion and ensure green travel. Strictly manage the demolition of existing buildings, adhering to the principle of "demolition, renovation, and retention" to "retention, renovation, and demolition." Promote urban renewal through intensive development and green, low-carbon development. Strengthen renovation and renovation, improve the safety, serviceability, and energy efficiency of existing buildings, address urban shortcomings, and enhance urban functions. With the exception of illegal structures and those identified as dilapidated and unrepairable by professional institutions, avoid large-scale, centralized demolition of existing buildings. In principle, the demolished building area within an urban renewal unit (area) or project should not exceed 20% of the total existing building area. Improve property ownership statistics, revitalize existing housing stock, and reduce vacant housing of all types. Focusing on the "three major projects," actively implement urban renewal initiatives, complete the establishment of the Nanning Urban Renewal Project Database, and coordinate urban renewal projects citywide according to the principle of "reserve a batch, promote a batch, and build a batch." Review pilot projects for affordable housing and urban village renovation, and strive to include key projects in national plans. Following the principles of ecological priority and low-carbon environmental protection, steadily advance the integrated station-city renovation project in the Wuyi Middle Road area, steadily advance shantytown redevelopment, and coordinate the renovation of older residential communities. Promote the implementation of urban renewal funds and orderly carry out the protection and utilization of historical buildings and the protection and repair of historical and cultural blocks.

(5) Improve the green and low-carbon development of county towns. Leveraging Nanning's locational advantages and resource endowment, and building upon Guangxi's ecological and environmental strengths, and leveraging the "China Green City" brand's influence, we will promote the development of green and low-carbon county towns. We will strengthen management of construction density, development intensity, and building height, fostering an intensive, economical, and pleasantly scaled county town pattern. We will fully leverage natural conditions and adapt to existing topography to achieve harmonious integration between county towns and the natural environment. Based on local conditions, we will promote a distributed infrastructure layout that combines large-scale decentralization with small-scale concentrations, and build green and energy-efficient infrastructure. We will strengthen management of county town construction density and intensity according to local conditions. In county towns located in ecological functional zones and major agricultural production areas, the population density in built-up areas should be controlled at 0.6-10,000 people per square kilometer, and the ratio of total building area to construction land should be controlled at 0.6-0.8. Building height must be commensurate with fire and rescue capabilities. New residential buildings will primarily be six stories high, with a maximum of 18 stories. Residential buildings six stories or less should account for no less than 70% of the total floor area. Where residential buildings of 18 stories or higher are necessary, rigorous and thorough investigations should be conducted, and supporting fire emergency and municipal infrastructure should be in place. Promote energy-saving and water-saving renovations and functional upgrades for older residential communities in county towns. Build a green, low-carbon energy system in county towns, and strengthen the development of energy infrastructure such as distribution networks, energy storage, and electric vehicle charging stations. Strengthen the preservation and inheritance of county town history and culture, protecting and inheriting the county town's history, culture, and style, and preserving the overall layout of traditional neighborhoods and the original street network. Promote the "narrow roads, dense road network, and small blocks" approach. The red line width of internal county town roads should not exceed 40 meters. The size of county town squares should be reasonably controlled, with the concentrated hard-surface area in squares not exceeding 2 hectares. The pedestrian network should be continuous and unobstructed.

(VI) Develop green and low-carbon communities. Communities are important venues for fostering a simple, moderate, green, low-carbon, civilized, and healthy lifestyle. Promote mixed-use neighborhoods with diverse functions, advocating a mixed layout of residential, commercial, and non-polluting industries. In accordance with the "Standards for the Construction of Complete Residential Communities (Trial Implementation)," basic public service facilities, convenient commercial service facilities, municipal supporting infrastructure, and public activity spaces should be constructed. By 2030, the coverage rate of complete residential communities will increase to over 60%. Based on the differences in public service facilities within the service area, coordinated development will be implemented through the addition, expansion, or renovation of these facilities. Facilities in mature urban areas will be prioritized for optimization and upgrading, with a focus on the construction and renovation of facilities suitable for the elderly and children. Community walking and cycling networks will be established, connecting several residential communities. This network will strengthen effective connections between communities and parks, green spaces, public venues, public transportation stations, neighborhood centers, and other areas, creating a 15-minute living circle. Green community creation initiatives will be promoted, integrating green development concepts throughout community planning, construction, and management. 60% of urban communities will meet these requirements first. Green community creation initiatives will be encouraged in conjunction with the renovation of older urban communities, shantytown redevelopment, and urban renewal. Zero-carbon community development will be explored, with integrated photovoltaic building renovations implemented according to local conditions, promoting green and energy-saving lifestyles. Property management companies will be encouraged to provide residents with services such as home-based elderly care, housekeeping, childcare, fitness, and shopping, meeting their basic needs within walking distance. The use of green home appliances will be encouraged to reduce the use of disposable consumer goods. Encourage green and low-carbon energy use practices such as "partial space, part time." Promote turning off lights and unplugging appliances such as televisions, air conditioners, and computers when not in use. Encourage the use of new energy vehicles and promote the construction of community charging and swapping facilities. Accelerate the development and improvement of urban living environments, build vibrant green streets and green communities, and continuously enhance the quality of "China's Green Cities."

(VII) Improve infrastructure operational efficiency. Systematized, intelligent, and eco-friendly infrastructure construction and stable operation can effectively reduce energy consumption and carbon emissions. Address shortcomings, strengthen the foundation, promote energy-saving upgrades and intensive utilization of urban infrastructure, improve urban quality, and extend the lifespan of infrastructure. Adhering to the two major development themes of "integration" and "high quality," we will build a green travel system and create a low-carbon transportation city. We will launch special initiatives to clean sidewalks and build bicycle lanes. We will improve supporting connecting facilities such as corridors or underground passages between urban rail transit stations and surrounding buildings. We will increase the construction of urban bus lanes, improve the efficiency and service level of urban public transportation, and continuously consolidate the achievements of becoming a National Bus City Demonstration City and a National Green Travel Cities Cities. Taking into account the specific characteristics of cities, while fully respecting nature, we will strengthen the effective connection between urban facilities and existing ecological foundations such as rivers and lakes. We will systematically promote sponge city development across the region, adapting to local conditions. We will comprehensively adopt a "seepage, retention, storage, purification, utilization, and drainage" approach to increase rainwater storage and utilization. By 2030, the average permeable area of urban built-up areas will reach 45%. We will improve urban flood control and drainage systems, enhance urban disaster prevention and mitigation capabilities, and strengthen urban resilience. We will promote the development of water-saving cities. We will renovate and renovate aging urban water supply networks, conduct water supply network surveys, implement zoning metering, and improve the intelligent management of water supply networks. We will strive to control the leakage rate of urban public water supply networks to below 8% by 2030. We will improve long-term mechanisms for the treatment of black and odorous water bodies, accelerate the expansion of urban domestic sewage treatment capacity, accelerate the construction of demonstration sections for the treatment of black and odorous water bodies, coordinate the treatment of black and odorous water bodies in county-level cities, and gradually improve the sewage treatment efficiency of counties, cities, and towns. Implement the renovation of sewage collection and treatment facilities and the resource utilization of urban sewage, achieving an average urban recycled water utilization rate of 30% by 2030. Accelerate the renovation of urban gas supply pipelines and facilities. Promote green urban lighting, ensuring that high-efficiency energy-saving lamps such as LEDs account for over 80% of the total by 2030. Coordinate the implementation of the "135" urban lighting project to promote the digital development of Nanning's lighting system. Accelerate the preparation of the "Nanning City Charging and Swapping Infrastructure Layout Plan," actively carry out pilot projects such as the "unified construction and management" of charging and swapping infrastructure, and gradually implement this initiative citywide. Carry out urban landscaping enhancements, improve the urban park system, promote the construction of greenway networks in central and old urban areas, strengthen three-dimensional greening, and increase the proportion of native and carbon-sequestering plants. By 2030, the greening rate of urban built-up areas will reach 38.9%, with greenways exceeding 1 kilometer per 10,000 people in urban built-up areas.

(VIII) Vigorously promote the reduction and resource utilization of domestic waste. Promote the development of Nanning into a "zero-waste city," and accelerate the establishment of a system, technology, and regulatory framework for this purpose. Continue to promote source reduction and resource utilization of solid waste, minimizing the amount of solid waste landfilled in the construction sector. Solidly promote the classification of domestic waste, accelerate the establishment of a comprehensive domestic waste collection, transportation, and disposal system, and fully implement classified disposal, collection, transportation, and treatment. Strengthen the full-chain governance of plastic pollution, combat excessive packaging, and promote source reduction of domestic waste. Address shortcomings in domestic waste treatment facilities, build supporting pollution control facilities and equipment, promote incineration of domestic waste, reduce the proportion of landfills, and explore resource utilization technologies suitable for the characteristics of Nanning's kitchen waste. By 2025, achieve full coverage of urban domestic waste classification, fully implement a system of classified disposal, collection, transportation, and treatment, and maintain a resource utilization rate of over 65% for domestic waste. By 2030, achieve the level of urban domestic waste classification comparable to that of advanced cities in China.

III. Vigorously Develop Green and Low-Carbon Buildings

(IX) Comprehensively Improve the Standards of Green and Low-Carbon Buildings. Continue to carry out green building initiatives, standardize green building management throughout the entire process, and focus on strengthening energy-saving controls during the design, construction, and acceptance phases. Ensure 100% compliance with mandatory energy-saving standards for new urban buildings during both the design and construction phases. By 2025, all new urban buildings will adhere to green building standards, with star-rated green buildings accounting for over 30% of all buildings. All new government-invested public welfare buildings and large public buildings will be one-star or higher, and implementation of higher-level green building standards will be encouraged. Green building labeling will also be encouraged. By 2030, new residential buildings in the city will meet energy-saving requirements of 75% and new public buildings will meet energy-saving requirements of 78%. Promote the large-scale development of low-carbon buildings and encourage the construction of zero-carbon and near-zero-energy buildings. In conjunction with urban infrastructure renovation, old town renovation, and the renovation of older urban communities, implement energy-saving renovations for existing urban public buildings and municipal infrastructure to enhance building energy efficiency and low-carbon performance. Strengthen the appraisal and evaluation of energy-saving and green renovations, formulate special renovation plans, and ensure that all buildings with renovation value and conditions are fully renovated, with energy-saving levels meeting current standards. Continue to promote the construction of key cities to improve the energy efficiency of public buildings, completing all renovation tasks by 2030 and achieving an overall energy efficiency improvement of more than 20%. Encourage the integration of building automation, energy consumption monitoring, and distributed power generation systems, establish a data sharing mechanism for water, electricity, and gas usage in urban buildings, improve the construction of building energy consumption monitoring platforms, enhance the intelligent operation and management of urban buildings and infrastructure, promote contract energy management service models, and implement energy consumption quota management for public buildings. Enhance the intelligent operation and management of urban buildings and infrastructure, accelerate the promotion of contract energy management and contract water conservation management service models, strengthen building operation management, enhance energy conservation in public buildings, promote energy consumption monitoring and statistical analysis of public buildings, gradually implement energy consumption quota management, and accelerate the energy-saving renovation of high-energy-consuming public buildings. Strengthen the operation and adjustment of key energy-consuming equipment such as air conditioners, lighting, and elevators to improve their energy efficiency, and achieve a 10% increase in the overall energy efficiency of public building mechanical and electrical systems from the current level by 2030. Conduct research on green, low-carbon, energy-saving building technologies, including thermal insulation technology for building envelopes, low-carbon energy-saving technology for equipment and systems, renewable energy building applications, and building insulation systems for prefabricated construction. Actively organize research on a catalog of green, low-carbon technologies for promotion and application in Nanning, establishing a high-quality green new building technology system, a green, energy-saving, and low-carbon renovation technology system for existing buildings tailored to local conditions, a smart operation and maintenance technology system for public buildings, a clean and livable rural building energy-saving technology system, a renewable energy building application technology system, a green building health performance technology system, and a green building intelligent management platform technology system.

(10) Build green, low-carbon housing. Improve housing quality, actively develop small and medium-sized ordinary residential units, and limit the development of oversized residential units. Based on Nanning's climatic conditions, rationally determine residential orientation, window-to-wall ratio, and building form factor to reduce residential energy consumption. Rationally layout living spaces, encourage large bays and small depths, and fully utilize natural ventilation, natural lighting, sound insulation, and other architectural design methods that incorporate the concept of ecological sharing. Promote flexible and adaptable living space designs to reduce resource waste caused by renovation or demolition. Promote the fully furnished delivery of newly built homes to reduce resource consumption and environmental pollution. Actively promote prefabricated renovations and the application of modular components, such as integrated bathrooms and kitchens, to enable disassembly, modification, and recycling of components. Improve the maintenance and upkeep of shared facilities and equipment, enhancing their intelligence. Explore green and low-carbon renovations of existing homes, strengthen the maintenance and management of shared areas, and extend their service life.

(11) Promote green and low-carbon construction. Explore and promote the "Green Building Intelligence Plus," "Green Building Assembly Plus," and "Localization of Green Building Materials," accelerate the industrialization of new building types, vigorously develop prefabricated buildings, and actively promote prefabricated buildings in residential buildings, hospitals, schools, office buildings, and industrial parks. Comprehensively promote the use of prefabricated stair slabs, prefabricated floor slabs, and prefabricated interior and exterior wall panels in new buildings in pilot cities for prefabricated buildings in the autonomous region. Further explore appropriate and complete prefabricated building technology systems, strengthen technical research on load-bearing components such as prefabricated beams and columns, and gradually increase the assembly rate of individual buildings. Establish a guidance mechanism for prefabricated building project construction to improve project quality and safety. By 2030, the proportion of prefabricated building area in newly built urban areas will reach 40% of the total new building area. Accelerate the development of new building industrialization, strengthen systematic integrated design, optimize the production of components and parts, promote lean construction, accelerate the integration of information technology, innovate organizational and management models, strengthen scientific and technological support, promote a construction model that combines factory prefabrication, prefabricated construction, and information management, and promote intelligent construction. By 2030, cultivate one intelligent construction industry base, create a number of Internet platforms for the construction industry, and develop a series of iconic construction robot products. Promote factory-based precision processing and refined management of building materials, and by 2030, reduce the loss rate of building materials on construction sites by 20% compared to 2020. Carry out the development of "smart construction sites," comprehensively utilize information technology, promote the modernization of the construction industry, strengthen green construction management, actively promote energy-saving construction equipment, monitor the energy consumption of key energy-consuming equipment, and implement group control management for multiple similar equipment. Vigorously promote green and low-carbon product certification, increase investment in the research and development of green building materials and key technologies, promote high-strength steel bars, high-performance concrete, high-performance masonry materials, and structural insulation integrated wall panels, give priority to building materials with green and low-carbon product certification. Establish a mechanism for the procurement of green building materials for government projects, and pioneer the use of recyclable and reusable building materials, high-strength and high-durability building materials, green components, green decorative and finishing materials, and water-saving and energy-saving building materials in government-invested projects, key projects, municipal public works, green buildings, eco-urban areas, and prefabricated buildings. By 2030, fully promote the use of green and low-carbon building materials in star-rated green buildings. Encourage the use of wood and bamboo building materials. Improve the versatility of prefabricated components and parts, and promote standardized, fewer-specification, and more-combined designs. Explore the development path of modern timber structures, encouraging the development of light wood, heavy wood, composite wood, and steel-wood structures. Encourage timber structure companies to collaborate with research institutes and universities to develop integrated materials using local timber, and conduct research on modern timber structure technologies such as steel-wood structures, anti-corrosion and anti-termite, fire and sound insulation, and thermal insulation. Vigorously promote the "Nanning City Construction Project Fence Standard Atlas" to create a new image of clean, tidy, beautiful, and elegant construction sites. Establish and improve mechanisms for reducing and reusing construction waste, strengthen the classification and control of construction waste on construction sites, and by 2030, emissions of construction waste from new construction sites will not exceed 300 tons per 10,000 square meters, and emissions of construction waste (excluding construction debris and slurry) from prefabricated construction sites will not exceed 200 tons per 10,000 square meters. Promote the centralized treatment and graded utilization of construction waste. By the end of 2025, the comprehensive utilization rate of construction waste resources will reach 35%; by 2030, the comprehensive utilization rate of construction waste resources will reach 55%.

IV. Accelerate the Optimization of Urban Building Energy Use Structures

(12) Deepen the Application of Renewable Energy in Buildings. Adhere to the principle of adapting to local conditions. Comprehensively consider building functions and subsequent usage habits when selecting renewable energy building application systems and facilities. Improve the comprehensive utilization of renewable energy sources such as solar energy, air energy, and shallow geothermal energy. Actively conduct detailed and meticulous research and demonstration on renewable energy building applications in residential buildings, selecting the best renewable energy sources that are appropriate for the project. Promote the integrated construction of solar photovoltaics in buildings, and promote clean, low-carbon heating methods such as water-source heat pumps and solar energy according to local conditions. Promote the orderly development of distributed rooftop photovoltaics and promote the high-quality application of rooftop photovoltaics in buildings. Support the application of thin-film battery technologies such as perovskite and cadmium telluride in the building sector. Support the use of renewable energy sources such as solar energy and air energy in new buildings and energy-saving renovations of existing buildings. Strive to achieve a 50% rooftop photovoltaic coverage rate for new public institutions and new factory buildings by 2025. Promote the installation of solar photovoltaic systems on the roofs of existing public buildings. Accelerate the promotion of smart photovoltaic applications. Actively promote the application of solar thermal energy in buildings with stable hot water demand. Promote the application of geothermal and biomass energy according to local conditions, and promote various electric heat pump technologies, including air source heat pumps. By 2025, the renewable energy substitution rate in urban buildings will reach 8%.

(13) Improve the level of building electrification. Guide the electrification of building heating, domestic hot water, cooking, and other services, ensuring that building electricity accounts for over 65% of building energy consumption by 2030. Promote the full electrification of new public buildings, reaching a 20% electrification rate by 2030. Promote alternatives to gas, such as heat pump water heaters and high-efficiency electric stoves, and promote the use of high-efficiency DC electrical appliances and equipment. Strengthen the connection and coordination between urban development and the planning and construction of the Guangxi power grid, promote the application of technologies such as smart microgrids, "solar storage, direct current, and flexible power," cold and heat storage, flexible load regulation, and virtual power plants, prioritize the use of renewable energy power, and actively participate in power demand response. Leverage the advantages of electricity in building end-use consumption, such as cleanliness, availability, and convenience. Establish a building energy consumption system centered on electricity consumption, increase the proportion of clean electricity consumption in building energy consumption, actively promote the substitution of electricity for gas and oil, and promote the research and application of efficient electrification technologies and equipment. Explore intelligent group control technologies for building electrical equipment, rationally allocate electricity load while meeting electricity demand, and achieve minimal or no capacity expansion. Explore hydrogen fuel cell distributed cogeneration based on existing energy infrastructure and economic affordability, tailored to local conditions. Promote low-carbonization of building heat sources, comprehensively utilize waste heat from cogeneration and industrial waste heat, and maximize its use based on Nanning's actual applications. Leverage urban thermal power supply capacity and enhance urban thermal power-biomass coupling capabilities.

V. Building Green and Low-Carbon Rural Areas

(14) Create a natural and compact rural landscape. Guided by county-level town and village planning, focus on preserving local characteristics and continuously improve the quality of rural development. Based on resource and environmental carrying capacity and comprehensive development conditions, rationally plan rural development, protect the rural ecological environment, and reduce resource and energy consumption. Carry out green and low-carbon village construction to improve rural ecological and environmental quality. Site selection for farmhouse and village construction must be safe and reliable, conforming to the topography and protecting the ecological network of mountains, rivers, forests, fields, lakes, grasslands, and wetlands. New farmhouse construction is encouraged to cluster in villages with well-developed infrastructure, superior natural conditions, comprehensive public service facilities, and beautiful landscapes, ensuring that farmhouse clusters are natural, compact, and orderly. Promote the extension of cutting-edge public infrastructure technologies to rural areas, focus on addressing shortcomings in rural infrastructure, advance the provision of natural gas to villages and households, continuously improve rural production and living conditions, and accelerate the interconnection of urban and rural infrastructure. Solidly advance the development of small towns, accelerating the development of small towns in Nanyang, Yunbiao, Wuxu, Daqiao, Zhoulu, and Kunlun. Explore the investigation and financing of public infrastructure projects in small towns, and actively plan and reserve projects for small towns across the city. Continue to promote the preservation and development of traditional Chinese villages, and actively seek funding from higher authorities for the preservation and development of historical and cultural villages and traditional villages. Strengthen the management and control of farmhouses, improve the management of rural construction, and enhance the design and construction quality of farmhouses.

(15) Promote the construction of green and low-carbon farmhouses. Explore new approaches to rural housing construction, adopting the "drawing-based construction + craftsman responsibility system," to enhance the green and low-carbon design and construction of rural housing, with a focus on promoting the construction of prefabricated steel structures to achieve the goals of shortening construction periods, improving living quality, and reducing daily energy consumption. Promote energy-saving renovations of existing rural housing, improve its energy efficiency, and complete a number of green rural housing by 2030. Encourage the construction of star-rated green and zero-carbon rural housing. Formulate and improve relevant standards for rural housing construction, based on requirements such as structural safety, comprehensive functionality, and energy conservation and carbon reduction. Explore and improve government approval procedures, standardize rural housing construction, guide new rural housing construction to comply with relevant standards such as the "Rural Residential Building Energy-Saving Design Standard," and improve energy-saving measures for rural housing. Promote the use of high-efficiency lighting, stoves, and other facilities and equipment. Encourage the use of local materials and indigenous materials, promote the use of green building materials, and encourage the use of prefabricated steel and wood structures.

(16) Assist in promoting low-carbon management of rural domestic waste and sewage. Work with relevant departments to promote rural sewage treatment, rationally determine discharge standards, and promote the local and on-site resource utilization of rural domestic sewage. Adapting to local conditions, promote small-scale, ecological, and decentralized sewage treatment processes, and promote micro-power, low-energy, and low-cost operation methods. Promote the classified treatment of rural domestic waste, establish and improve a rural domestic waste collection, transportation, and disposal system of "village collection, town transportation, and county (district) treatment," advocate the resource utilization of rural domestic waste, and reduce the amount of rural domestic waste generated at the source. Conduct a city-wide survey of the operation of rural domestic waste transfer and treatment facilities, advance the construction of rural domestic waste collection and transfer facilities, and gradually advance the renovation of outdated rural waste collection pools.

(17) Promote the application of renewable energy in rural areas. Promote the use of renewable energy such as solar, wind, geothermal, air heat, and biomass energy in rural gas and electricity supply. Vigorously promote the installation of solar photovoltaic systems on rural rooftops, courtyards, and agricultural facilities. Promote the development of new agricultural ecological demonstration bases that integrate new energy, efficient planting, agricultural science popularization, and leisure tourism, and leverage the comprehensive benefits of photovoltaic industry clusters. Promote further electrification in rural areas, and encourage the electrification of energy for cooking, lighting, transportation, and hot water. Fully utilize solar thermal systems to provide domestic hot water, and encourage the use of solar stoves and other equipment. Promote the installation of solar streetlights within natural villages.

VI. Promote green and low-carbon development across the entire construction industry chain

(18) Promote green and low-carbon development across the entire construction industry chain. Taking advantage of Nanning's accelerated development of the China-ASEAN Cross-Border Industrial Integration Development Cooperation Zone, we will focus on the three key areas of "industrial development, park construction, and enterprise cultivation," centered around the strategic goals of achieving carbon peak and carbon neutrality. We will introduce advanced technology, capital, and management to build construction industrial parks and smart construction bases. We will promote the scale aggregation, technological research and development, and optimization of the "man, machine, material, method, environment, and testing" industrial elements, eliminate outdated production capacity, and address the "two lows and one high" (low labor productivity, low cost-effectiveness of construction products, and high intermediary transaction costs) issues in the construction industry. Led by leading enterprises and key projects, we will scientifically and rationally develop a number of green building materials industrial parks. The development goal of the construction industry chain is to "optimize the upstream, strengthen the midstream, and extend the downstream." Guided by the promotion of high-quality development in the construction industry, we will provide high-quality services to the construction industry in areas such as machinery rental and maintenance, rapid testing of construction product performance, construction material turnover, engineering consulting, and industrial worker training. We will strengthen service coordination and actively promote the steady development of integrated service zones for the construction industry. We will optimize the industrial chain layout, encourage the coordinated development of enterprises across the construction industry chain, actively promote the application of new technologies, new processes, new materials, and new products, and steadily build the "Nanning Construction" brand. We will accelerate the development of new building industrialization in Nanning, focusing on whole-house intelligent manufacturing. Pilot projects will drive the integrated development of upstream and downstream supply chains in the construction industry, making "building houses like building cars" a reality and achieving the goals of "reducing costs, improving quality, and increasing efficiency" in construction industrialization. We will gradually form a production and manufacturing cluster centered on Nanning's construction, with its production factors radiating to surrounding areas and even ASEAN countries. We will encourage the in-depth integration and application of new technologies such as the Internet, the Internet of Things, big data, cloud computing, and artificial intelligence, accelerate the digitalization and intelligent upgrading of the construction industry, and promote green and low-carbon development across the entire construction industry chain.

VII. Guarantee Measures

(19) Strengthen the implementation of laws and regulations and standard measurement systems. In accordance with the deployment requirements of the state and the autonomous region, actively cooperate in promoting the improvement of local regulations related to carbon peak in urban and rural construction, strictly implement carbon emission management systems, and clarify responsible entities. Strictly implement carbon emission statistics and accounting systems and strengthen carbon emission data management. Strengthen the development of carbon emission monitoring and measurement systems, promote the development of carbon emission measurement technologies, improve statistical accounting capabilities, and explore the establishment of a carbon emission basic data sharing mechanism.

(20) Build a green and low-carbon transformation and development model. With green and low-carbon as the goal, build a development model that is comprehensive, co-construction, co-governance, and shared, and improve the mechanism of government leadership, group-driven development, and social participation. Implement the "annual physical examination and five-year evaluation" urban physical examination and evaluation system. Implement the rural construction evaluation mechanism. Utilize Building Information Modeling (BIM) technology and City Information Modeling (CIM) platforms to promote the construction of digital buildings and digital twin cities, and accelerate the digital transformation of urban and rural construction. Vigorously develop the energy-saving service industry, promote contract energy management, and explore "one-stop" comprehensive service models such as energy-saving consulting, diagnosis, design, financing, renovation, and trusteeship. Explore carbon emissions trading models for major engineering projects and promote the establishment of carbon pricing and carbon emissions trading mechanisms for buildings. Explore integrating green and low-carbon development into urban planning, accelerate the preparation of special plans, and improve the planning system. Improve the planning approval process, establishing a mechanism for mutual restraint and coordination among preparation, approval, and supervision. Approval departments should enhance service levels and actively cooperate with process management. Establish a digital information platform to improve the automation, quantification, scientific nature, and digitization of planning management.

(21) Establish an integrated industry-university-research mechanism. Organize and carry out applied basic research, key core technology research, engineering demonstrations, and industrial applications, promote the coordinated development of scientific and technological research and development, application of research results, and industrial cultivation, focus on key core technology research around green buildings, low-carbon buildings, green construction, and efficient use of renewable energy, and accelerate the application of advanced and applicable technologies. Integrate and optimize industry-university-research and scientific and technological resources, promote the development of high-level innovation teams and innovation platforms, encourage leading enterprises to strive to establish innovation platforms at the municipal level and above, and strengthen the cultivation of innovative leading enterprises. Encourage and support leading enterprises to collaborate with universities and research institutes to form innovation consortia and other platforms. Encourage universities to add courses related to carbon peak and carbon neutrality and strengthen talent development.

(22) Promote the implementation of financial and fiscal support policies. Promote the implementation of relevant fiscal policies for carbon peak in urban and rural construction, and implement tax incentives. Implement government procurement standards for green buildings and green building materials, and promote their use in government procurement. Strengthen green financial support, and encourage banking and financial institutions to innovate credit products and services to support energy conservation, emission reduction, and carbon reduction in urban and rural construction, under the principles of controllable risks and commercial autonomy. Encourage developers to purchase quality insurance for fully furnished homes, strengthen insurance support, and leverage the risk protection role of green insurance products. Rationally open up the market for urban infrastructure investment, construction, and operation, and use franchises, government procurement of services, and other means to attract private capital investment. Strictly implement differentiated electricity pricing, time-of-use electricity pricing, and residential tiered electricity pricing policies.

(23) Carry out demonstration project construction. Accelerate the promotion and application of advanced and applicable technologies in engineering projects. Focus on promoting demonstration projects for energy-saving and green renovation of state office buildings and public buildings in education, science, culture, health, and sports. Further promote the demonstration of renewable energy building applications and conduct in-depth pilot projects for integrated solar building applications. Promote pilot projects for low-energy and ultra-low-energy buildings. Encourage the exploration of new models for contract energy management and the construction of pilot projects for new "solar-storage-direct-flexible" building power systems that integrate photovoltaic power generation, energy storage, DC power distribution, and flexible power consumption. Continue to implement demonstration projects for green lighting projects.

VIII. Organization and Implementation

(24) Strengthen organizational leadership. All departments at all levels must resolutely shoulder the responsibility of promoting carbon peak and carbon neutrality. Under the leadership of the Municipal Carbon Peak and Carbon Neutrality Leading Group, establish and improve a work structure in which the Party Committee (Party Group) leads the work and the Party and government work together. All relevant departments should clarify goals and tasks, establish lists of responsibilities, strengthen collaboration, and form a joint force.

(25) Strengthen task implementation. All relevant departments in the city should carefully study and resolve major issues in the implementation and development of carbon peak and carbon neutrality in urban and rural construction, take proactive actions, implement all tasks in detail, promptly summarize good experiences and practices, and steadily advance related work. Relevant departments in all counties (cities, districts), and development zones should promptly submit their annual implementation reports to the Municipal Housing and Urban-Rural Development Bureau and the Development and Reform Commission.

(26) Increase training and publicity. Strengthen the promotion and guidance roles of relevant departments, make carbon peak and carbon neutrality an important part of cadre training in urban and rural construction, and enhance green and low-carbon development capabilities. Through various means such as professional training, competitions, and experience sharing, improve the professional skills of personnel in planning, design, construction, and operation-related units and enterprises. Increase publicity efforts for outstanding projects and typical cases, and cooperate in carrying out activities such as the "National Energy Conservation Campaign" and "Energy Conservation Publicity Week." Compile a green and low-carbon lifestyle brochure, actively promote a green and low-carbon lifestyle, mobilize all sectors of society to participate in carbon reduction actions, and create a strong atmosphere of support from all sectors of society and active participation by the public. Promote voluntary emission reduction commitments and guide the public to consciously fulfill their responsibilities for energy conservation and emission reduction.