The truth of carbon emission reduction in new energy vehicles

Can we achieve zero-emission new energy vehicles, from research and development, production to use, scrap the entire life cycle, really environmental protection? Of course not.

When Tesla swept the world with speed, passion and zero emissions, the long-debated topic in the car industry seemed to have a clearer answer after Singapore was fined for being "environmentally friendly".

Such a judgment result, really will the new energy vehicle environmental protection advantage completely negated? Of course not.

So, which new energy vehicles are really environmental protection, which is "pseudo-environmental protection"? In March, the Data Resource Center of China Automotive Technology Research Center Co., Ltd.(hereinafter referred to as the "China Automobile Center") released the "China New Energy Vehicle Carbon Emission Assessment Program" and will conduct an evaluation in July to focus on the energy consumption of new energy vehicles throughout the life cycle. Trying to objectively restore the carbon emissions of new energy vehicles.

Launch of the "Carbon Emission Assessment Program"

Systematic measurement of environmental performance throughout the life cycle

The "China New Energy Vehicle Carbon Emission Assessment Program" launched by the China Automobile Center Data Resource Center in March this year is groundbreaking based on the lifecycle evaluation(LCA) theory. The carbon emission reduction effect of new energy vehicles compared with conventional gasoline vehicles of the same grade was evaluated systematically, comprehensively and objectively.

"There is no denying that our findings show that compared with the total life cycle carbon emissions of domestic pure electric vehicles and traditional gasoline vehicles, pure electric vehicles have the advantage of full life cycle emission reduction in general, but there are still differences in specific models. There is also a large gap in the carbon emission reduction potential of different pure electric vehicles throughout their life cycle. In other words, not all pure electric vehicles have the more obvious advantage of full life cycle carbon emission reduction. "How can we improve the technology level of pure electric vehicles on the industrial and manufacturing sides in a variety of ways to reduce their lifecycle carbon emissions? At the same time, through our evaluation system, consumers can more accurately identify the new energy vehicles that have the advantage of carbon emission reduction. This is the main purpose of our launch of the "China New Energy Vehicle Carbon Emission Evaluation Program" in the industry. This evaluation method fully quantifies the carbon emission reduction advantages of new energy vehicles compared with traditional energy vehicles from the perspective of the full life cycle of automobiles. "

It is understood that in order to make the carbon emission evaluation scheme more scientific and authoritative, the China Automobile Center Data Resource Center has developed a total life cycle carbon emission evaluation model(CALCM) based on the China Automobile Life Cycle Database(CALCD). According to the requirements of the life cycle evaluation standards, the model will produce the vehicle cycle including raw materials, battery production, and vehicle production, Sunxin, the project manager for the green development of the data center of the China National Automobile Center, which is responsible for the evaluation of the carbon emissions of new energy vehicles, told reporters. The fuel cycle, which includes power production and supply, gasoline production, and the car's driving phase, can comprehensively assess the carbon emissions of new energy vehicles throughout their life cycle.

Know yourself and play to your advantage.

Carbon emission reduction in the upper and lower reaches of the linkage industry

Globally, in recent years, countries such as Europe and the United States have begun to pay close attention to the full life cycle emissions of automobiles and have issued relevant policies to ensure that vehicles are "truly environmentally friendly."

The United States Environmental Protection Agency(EPA) has developed GreenhouseGasMission Standard for greenhouse gas emissions during vehicle use using the life-cycle approach. The sum of the vehicles sold by each car manufacturer in the United States must meet the GHG standard requirements. Otherwise, the license for the car manufacturer to sell in the United States will be cancelled. In addition, the United States Renewelle FuelStandard, which began in 2007, requires that renewable fuels must achieve 20 carbon reductions, biomass fuels must achieve 50 carbon reductions, advanced biofuels must achieve 50 carbon reductions, and cellulose fuels must achieve 60 carbon reductions. In the "NextGreenCar Evaluation" introduced in the United Kingdom, the carbon emissions and pollution generated by a car from raw materials preparation to production molding to transportation use are taken into account to obtain the NGC index. "In foreign countries, almost every new car owned by Benz, Volkswagen, Ford, Honda and other car brands must undergo a full life cycle analysis. In the R&D phase, we will start to determine the target value of the full life cycle impact of the vehicle. To ensure the continuous progress and improvement of the total life cycle carbon(greenhouse gas) emissions of new energy models compared with the traditional gasoline models. " said Sunxin.

"After seven years of in-depth research and industry practice, our current advantage is that we have established a complete and systematic vehicle life cycle methodology, database, model and tool, and at the practical level. The database and model are further enriched through the dismantling of real vehicles, and more objective and scientific analysis results are obtained. "Zhaomingnan told reporters.

According to this new energy vehicle carbon emission evaluation program, the China Automobile Center will disassemble and evaluate the newly listed new energy models and calculate the results of its full-life carbon emission evaluation. According to the evaluation method, if the total life cycle carbon emission value of the new energy model is less than or equal to the total life cycle carbon emission value(ie, the benchmark value) of the traditional gasoline car, the model is defined as a zero-emission vehicle.

The objective evaluation of the total life cycle carbon emissions of new energy vehicles has also attracted the attention of experts and enterprises at home and abroad.

The relevant experts of the World Iron and Steel Association believe that it is very meaningful to carry out an evaluation of the carbon emissions of new energy vehicles. Through the evaluation, it can identify electric vehicles that are truly energy-saving and emission reduction, and at the same time it can promote the wide application of life-cycle evaluation in the automotive industry. The World Steel Association will provide relevant technical support to the data resource center of the China Automobile Center to jointly promote this work. "Through the evaluation of carbon emissions from new energy vehicles, the industry's understanding of the importance of life-cycle evaluation can be improved, and automotive companies can be promoted to carry out life-cycle evaluation work, and they can more easily deal with possible green trade barriers in the future. "DSM(China) Co., Ltd., which specializes in materials science research, is responsible for life cycle evaluation experts told reporters.

A number of experts from the Ecological Environment Research Center of the Chinese Academy of Sciences and the School of Environment of Tsinghua University have said that the automotive industry should focus on doing what the automotive industry should do and pass the carbon emission evaluation of new energy vehicles. Help the auto industry to identify cars that have the potential to reduce emissions in the sense of the entire life cycle, guide the sustainable development of the automotive industry, truly drive the green technology progress of the automotive industry, and lead the green transformation of the automotive industry. At the same time, the development of the new energy vehicle carbon emission evaluation project is of great significance, whether it is the healthy development of new energy vehicles or the promotion of the application of life cycle evaluation. It is crucial to further improve the specific evaluation methods and make the industry, enterprises, and the market more convinced.

How to make the new energy vehicle carbon emission evaluation system better landing, in the specific operation and implementation of the evaluation system, the company's relevant responsible person also put forward quite sharp questions. The relevant person in charge of the verification of Echler's vehicle vehicle believes that the difference in energy structure scores between provinces and cities will lead to a relatively large difference in the evaluation results of a new energy vehicle. In order to make the evaluation results more objective, it is suggested that the energy structure scores of each province and city should be updated regularly as the structure is adjusted.

"Since it is a life-cycle carbon emission evaluation, it is recommended that the carbon emissions of new energy vehicles in the recycling process be included in the evaluation system. " said a law engineer for Renault Motors. In addition, there are also many joint ventures and related heads of independent auto companies raised concerns and doubts, and some auto companies are not confident about the full life cycle carbon emissions of certain new energy models produced at this stage.

The first evaluation results of the evaluation program were released in July.

In an interview with reporters, Zhaomingnan said that at the China Automobile Eco-Design International Forum to be held in July, the China Automobile Center Data Resource Center will officially release the "China New Energy Vehicle Carbon Emission Evaluation Program." The details of evaluation object, evaluation index and evaluation tool are further elaborated. The purpose is to establish a standard, fair and objective method for evaluating the carbon emissions of new energy vehicles in China, compare and analyze the carbon emissions of pure electric vehicles with traditional gasoline passenger vehicles throughout their life cycle, and calculate the emission reduction potential of pure electric passenger vehicles throughout their life cycle. To help the green development of new energy automobile industry in our country.

At present, according to the evaluation plan, the evaluation of the carbon emissions of new energy vehicles in China is carried out by means of a combination of vehicle drawing evaluation and enterprise recommendation evaluation. Among them, the evaluation process for pumping vehicles is: determining models, dismantling vehicles, conducting evaluations, and publishing results; The process of enterprise resource evaluation is: evaluation application, submission of reports, evaluation, and publication of results. The results will be released periodically by the Industrial Energy Conservation and Green Development Evaluation Center approved by the Ministry of Industry, Information and Technology.

"According to the plan, in July this year, we will begin to evaluate the demolition and research work to obtain data, and select the opportunity to publish the first batch of evaluation results. By the end of this year, there will be a number of pure electric passenger vehicles full life cycle carbon emissions evaluation results. " said Sunxin.

By evaluating the carbon emissions of domestic new energy vehicles throughout their life cycle, we can open up the industrial, manufacturing and market ends, and truly realize the potential of carbon emission reduction in the whole life cycle of new energy vehicles. Promote the green and sustainable development of the new energy automotive industry; We will correctly guide green consumption for multiple purposes. In this regard, Zhaomingnan told reporters that for the new energy vehicle carbon emission evaluation, the China Automobile Center will publicly publish the average data of China's automotive materials, energy, transportation and other industries, providing a strong data support for the new energy vehicle carbon emission evaluation. The carbon emission evaluation releases its carbon emission data to the platform, and material suppliers and parts companies can update the underlying material data. More truly environmentally friendly new energy vehicles are on the market by providing materials with lower carbon emissions and promoting the use of low-carbon emission materials in cars. "It is our original intention to provide participants from production to circulation with evaluation data with reference value and guide the healthy development of the new energy automotive industry. " he said.

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