The building materials industry is one of the important industries for our country to achieve the goals of "carbon peaking" and "carbon neutrality". Accelerating low-carbon transformation and ensuring early carbon peaking are the internal needs of the building materials industry's own development.

As a high-quality building materials system service provider, Oriental Yuhong has already planned ahead and explored the eight-character guideline of "Clean energy, control electricity, reduce consumption and reduce emission" at the source, upper, middle and lower reaches of production, which provides a reference for the implementation of the "two-carbon" strategy in the whole building materials industry.

Clean Energy, Green and Low Carbon

As we all know, our country's coal-based energy structure brings great pressure for carbon neutralization. Although the share of coal in the energy mix has dropped to 56.8 percent by 2020, it is difficult to build a balanced bridge between taking into account the development of various industries and achieving carbon neutrality, and there is a long way to go on green development.

Oriental Yuhong's idea of introducing clean energy to indirectly reduce coal consumption in combination with the actual production is worth promoting: making full use of the roof resources of the factory, building a distributed photovoltaic power station on the roof of the factory, which not only skillfully uses space and guarantees roof quality, but also opens up clean and green power. More importantly, the photovoltaic power station builds a small ecology of self-production, self-use and self-sale of power in the factory, achieving a win-win situation of optimization of energy structure and improvement of economic benefits.

It is understood that the first phase of the rooftop photovoltaic power station project of Oriental Yuhong Factory includes 16 Oriental Yuhong production, research and development logistics bases in China. The Puyang base has been connected to the grid first, with a total installed capacity of about 54.7 MW. The annual electricity generation is about 56.21 million KWH. The use of photovoltaic power generation accounts for about 35%, which can reduce the burning of standard coal about 21,500 tons, CO2 emissions about 53,600 tons, carbon dust emissions about 14,600 tons, sulfur dioxide emissions about 1.61 tons every year. (The coefficient is 1 KWH of electricity =0.4 kg of standard coal, 0.997kgCO2). The second phase of the project has been officially launched in February 2022. It will cover 12 Oriental Yuhong production, research and development logistics bases, with a total installed capacity of about 60 MW.

Moreover, since 2011, Oriental Yuhong roofing photovoltaic related technologies have been successfully applied in the fields of automobile, new energy and big data. In Changshu Chery Jaguar Land Rover, Hefei Haina (Nio) new energy vehicles, Jiangsu Yancheng Luye Technology, Jiangyin Vision Energy, Tianjin Evergreen Auto Parts, Tencent Huailai Data Center and other places, to inject green power for enterprise production.

Upstream Power Control, Stable Production

While optimizing the energy structure, how to accurately allocate and reasonably control electricity and tap the potential of power resources is also a top priority. After all, large enterprises are also big consumers of electricity. To improve the power efficiency under the premise of ensuring the normal operation of enterprises tests the management ability of every enterprise.

Oriental Yuhong actively responded to the market-oriented reform of China's power industry, and has formed a strategic cooperation with Datang International and a cooperation agreement with Huaneng Energy Sales and other companies. Each production, research and development logistics base actively links with the power generation side, reasonably planning electricity demand in advance, refining orderly electricity use plans, strengthening execution and control, and better ensuring the efficient power consumption of enterprises.

At the same time, Oriental Yuhong adheres to the management direction of "green production, low carbon and environmental protection", and combines the market demand with reasonable arrangement of production process and production shift, wrong and alternate holidays. It tries to use off-peak power and avoid peak power consumption to achieve indirect power saving effect, so as to achieve both optimized power consumption and stable operation.

The daily details of electricity management can not be ignored. For example, factory lighting classification management, office and living areas to change the induction lamp; The use of environment-friendly and energy-saving LED lights, instead of incandescent lamps, fluorescent lamps, ordinary energy-saving lamps and other lighting equipment. A series of measures to help lighting energy savings up to 40 percent.

Midstream Consumption Reduction, Energy-saving Transformation

As the outline of the 14th Five-Year Plan has set "reducing energy consumption per unit of GDP by 13.5%" as one of the major binding targets for economic and social development, enterprises need to make overall consideration on how to save energy and reduce consumption. The National Energy Administration has also mentioned that during the 14th Five-Year Plan period, it will promote energy conservation transformation in key industries.

Enterprise energy saving transformation can be said to have a number of grasp and focus. Oriental Yuhong's "Consumption Reduction Action" has covered many fields such as electricity, heat and water. For example, the energy saving transformation of air compressors can further improve the functional efficiency level of factory air compressors. It is preliminarily estimated that the energy saving can reach 20% in the factories that have started the transformation first. This year, the old air compressors will continue to be eliminated to reduce the energy consumption of "electric tigers"; The thermal insulation performance of the pipeline is reformed to effectively reduce the heat loss; Increase heat exchanger, use boiler waste heat for plant heating, domestic water heating, reduce heat energy waste; Coil production line adopts circulating water cooling technology to improve water utilization; Collect the steam condensate with pipe distribution and send it to the workshop for recycling to reduce the water consumption of the process and reduce water waste.

Downstream Emission Reduction, Relay Environmental Protection

Terminal emission is one of the direct judgments of environmental protection standards of enterprises. Many responsible enterprises will continue to explore a variety of methods and processes to reduce pollution emissions. Oriental Yuhong implements emission standards higher than those required by the government through relevant technical input.

Actively promote the production and logistics base to use regenerative incinerator (RTO) technology for incineration flue gas treatment, such as the treatment of asphalt waterproof coil, asphalt coating and other waste gas, compared with the traditional electrostatic dust removal and alkaline washing process, particulate matter emissions, non-methane hydrocarbon emissions, odor emissions, etc. are reduced by more than 50%, but also improve the heat recovery efficiency. Reduce carbon emissions from gas combustion.

Process innovation and improvement, such as modified asphalt heat transfer coefficient increased by 0.1W/(㎡•℃), viscosity reduced by 5000cp, construction process heating time reduced by 15%, heating temperature reduced by 40℃, reduce energy consumption and carbon emissions to 25%; The innovative use of pipeline mixed modification technology to achieve asphalt modification in closed pipelines, and improve the modification efficiency by 30% on the premise of ensuring the quality of modification.

By introducing clean power from the source, accurately regulating and rational electricity consumption in the upstream, multiple measures to reduce energy consumption in the midstream, and advanced technologies to reduce emissions in the downstream, Oriental Yuhong's carbon neutral action has realized the layout of the whole production chain and achieved a series of achievements. Tangshan, Huizhou and other production research and development logistics bases have been awarded national green factories. Xianyang, Puyang and other bases have passed Grade A in the environmental performance classification of national key environmental areas. We also believe that with more construction and building materials enterprises joining in the carbon reduction action, we can better help realize the goal of carbon neutrality of the whole society.

建材行业是我国实现“碳达峰”“碳中和”目标的重要产业之一，加快低碳转型、确保提前碳达峰是建材行业自身发展的内在需求。

作为优质的建筑建材系统服务商，东方雨虹早已未雨绸缪，在生产的源头、上中下游探索出“洁能·控电·降耗·减排”的八字指导方针，为整个建材行业“双碳”战略执行提供了借鉴性参考。

源头洁能，绿色低碳

众所周知，我国以煤为主的能源结构为碳中和带来巨大压力。尽管到2020年，能源结构中煤炭占比已下降至56.8%，但在兼顾各行业发展和达成碳中和目标之间，平衡的桥梁较难搭建，绿色发展之路任重道远。

东方雨虹结合生产实际，引入洁净能源间接降低煤炭消耗的思路值得推广：充分挖掘利用工厂的屋顶资源，打造工厂屋顶分布式光伏电站，既巧妙利用空间又保证屋顶质量，同时还开拓了清洁绿色动力。更重要的是光伏电站构建了工厂电力自产、自用、自销的小生态，实现了能源结构优化和经济效益提升的双赢。

据了解，东方雨虹工厂屋顶光伏电站项目，一期工程包含全国16个东方雨虹生产研发物流基地，濮阳基地已率先实现并网，总装机容量约54.7兆瓦。年均发电量约5621万度。利用光伏发电量占比约35%，每年可减少燃烧标准煤约2.15万吨、CO2排放约5.36万吨、碳粉尘排放约1.46万吨、二氧化硫排放约1.61吨。（系数为1度电=0.4千克标准煤，0.997kgCO2）。二期工程已于2022年2月正式启动，将覆盖12个东方雨虹生产研发物流基地，预计建设安装总装机容量约60兆瓦。

不仅如此，自从2011年以来，东方雨虹屋面光伏相关技术已实现在汽车、新能源、大数据等领域的成功应用。陆续在常熟奇瑞捷豹路虎、合肥海纳（蔚来）新能源汽车、江苏盐城绿叶科技、江阴远景能源、天津常春汽车零部件、腾讯怀来数据中心等地大展拳脚，为企业生产注入绿色动力。

上游控电，平稳生产

优化能源结构的同时，如何精准调拨，合理控制电量，挖掘电力资源潜力也是当务之急，毕竟大企业往往也是用电大户。在保证企业正常运转的前提下提升用电效率，考验着每一个企业的管理能力。

东方雨虹积极响应中国电力行业市场化改革，与大唐国际形成战略合作，并与华能能源销售等公司形成合作协议。各生产研发物流基地与发电侧积极联动，提前合理规划用电需求，细化有序用电方案，强化执行管控力度，更好保证了企业的高效用电。

与此同时，坚持“绿色生产、低碳环保”的管理方向，结合市场端需求，合理安排生产工艺、生产班次，错、轮休假日，尽量使用低谷电，避开用电高峰，起到间接节电效果，实现优化用电与平稳经营两不误。

日常用电的细节管理同样不容忽视。比如厂区照明分级管理，办公、生活区域长明灯改感应灯；利用环保节能的LED灯，代替白炽灯、荧光灯、普通节能灯等照明设备。一系列措施下来帮助照明节能达到40%。

中游降耗，节能改造

随着“十四五”规划纲要将“单位GDP能源消耗降低13.5%”作为经济社会发展主要约束性指标之一，如何节能降耗需企业统筹考虑。国家能源局也曾提到，“十四五”期间要在重点行业领域推动开展节能改造。

企业节能改造可以说有多个抓手和着力点。东方雨虹“降耗行动”已涵盖电、热、水等多个领域。比如空压机节能改造，可进一步提高工厂空压机能效等级，先行启动改造的工厂中，初步测算节能可达到20%，今年还将持续淘汰老旧空压机，减少“电老虎”能耗；对管道进行保温性能改造，有效降低热损耗；增加换热器，利用锅炉余热进行厂区采暖、生活用水加热，减少热能浪费；卷材生产线采用循环水冷却工艺，提高水利用；对蒸汽冷凝水进行配管收集，引至车间循环使用，降低工艺流程用水量，减少水浪费。

下游减排，接力环保

终端排放是对企业环保是否达标的直接判断之一，很多有责任的企业也会不断探索多种方法、工艺减少污染排放。东方雨虹通过相关技术投入，执行高于政府要求的排放标准。

积极推进各生产物流基地利用蓄热式焚烧炉（RTO）技术进行焚烧烟气处理，比如对沥青防水卷材、沥青涂料等废气的处理，与传统静电除尘和碱洗工艺相比，颗粒物排放、非甲烷总烃排放、恶臭排放等下降 50% 以上，同时还能提升热回收效率，减少燃气燃烧碳排放。

工艺创新改进，比如改性沥青传热系数提高0.1W/(㎡•℃)，黏度降低5000cp，施工过程中加热时间降低15%，加热温度降低40℃，降低能耗减碳排放达到25%；创新使用管道混合改性技术，实现沥青改性在密闭管道中完成，在保证改性质量的前提下，提升改性效率30%。

源头引入清洁动力、上游精准调控合理用电、中游多个措施降低能源损耗、下游先进技术助力减少排放，东方雨虹碳中和行动已经实现生产全链条布局，并且取得系列成果，唐山、惠州等生产研发物流基地获得国家级绿色工厂，咸阳、濮阳等基地在国家重点环境区域的环境绩效分级评定中通过A级。也相信随着更多建筑建材企业加入减碳行动，能够更好助力全社会碳中和目标的实现。