Since entering the heating season, smog has been raging for many consecutive days, and vehicle exhaust emissions have once again become a focus of attention. After many delays, the proposal for the seventh phase of European emission standards was finally launched in November and released by the European Commission.
The Euro 7 emission standard, known as the "strictest in history", replaces and simplifies the previous emission rules for individual cars, trucks, trucks and buses, and limits the emissions of all motor vehicles to the same set of standards, that is, no matter whether the vehicles use gasoline, diesel, electric energy or other alternative fuels, they must comply with the same set of emission standards. It is said that the Euro 7 standard has caused a great stir in the world before it was officially introduced.
As we all know, there are three major systems of vehicle emission standards in the world, namely, Europe, the United States and Japan, while China has always used the European system. It has taken 20 years from the first phase of the emission standards implemented in 2000, that is, National I, to the current six.
Objectively speaking, China's motor vehicle emission standards are still in Phase 6A, and Phase B has not yet been implemented. Many vehicle enterprises and owners have been exhausted. Now Europe VII is on the agenda. Will China continue to follow up?
Let's have a brief look at the requirements included in the Euro 7 standard.
First and foremost, the core issue is the emission of nitrogen oxides. Compared with the Euro 6 standard, Euro 7 requires that the emissions of nitrogen oxides of new vehicles be reduced to 30 mg/km, while the emissions of carbon monoxide are further reduced from 500-1000 mg/km to 100-300 mg/km. At the same time, the proposal clearly states that all cars and trucks sold in the EU will achieve zero CO2 emissions by 2035.
In addition, Euro 7 also limits the emission value of previously unregulated pollutants, such as nitrous oxide discharged from heavy diesel vehicles, which to some extent puts forward higher and more complex requirements for truck aftertreatment.
Third, Euro 7 broadens the limit from exhaust pipe to tires and braking systems. When the vehicle is braking, the iron filings generated by friction between brake pads and brake drums or brake discs, and the dust generated by tires will also be included in the limit of pollutants.
Fourth, Euro 7 will take a longer time to supervise and measure vehicles that have adopted Euro 7 for a longer time until these vehicles reach 200000 km or 10 years of age. This is almost twice as long as Euro 6.
Fifth, Euro 7 will regulate the durability of battery packs installed on vehicles to reduce the demand for key raw materials required for battery production.
Sixthly, make full use of digital management to ensure that vehicle emission standards will not be arbitrarily edited by the outside, and the authorities can measure the emissions of vehicles throughout their life cycle through sensors inside vehicles, so as to control emissions more easily.
The standard is scheduled to come into force for passenger cars and VAN in July 2025, and for trucks and buses in July 2027. Although it seems that the content is not very much, it covers most areas of vehicle pollution and emissions. If Euro VI puts on a cleaning mask for vehicles, Euro VII is equivalent to the level of air purifier, which can be said to be very difficult to implement.
Then, the most concerned question is: China will not continue to follow up the emission standards of the European Union and implement the national seventh after the national sixth?
Bottom line: We will definitely continue to implement National 7, but whether the National 7 we implement will be completely consistent with the European 7 standards is still unknown.
A clear signal can be seen from the trend of the country's vigorous development of new energy vehicles in recent years: environmental experts will have higher and higher requirements on motor vehicle emissions. Especially in the context of carbon peaking and carbon neutralization, it is expected to continue to tighten emission standards.
But why is it that the national standard and the European standard are not necessarily the same? This is based on national conditions. In Europe, more than 60% of the power resources will be renewable by 2030. Most of the power in France and other countries will come from nuclear energy. Therefore, the pressure of carbon dioxide emission is not great when electricity is used to replace fuel engines. In contrast, in China, power resources are more provided by coal. If electric energy is blindly used to replace fuel engines, the amount of carbon dioxide generated by coal to obtain power resources can be less than that generated by fuel engines, which is still inconclusive. In addition, if a large number of fuel vehicles are replaced by electric vehicles in a short time, it will also be a great test for the country's power facilities and power generation facilities.
According to the existing information on the comprehensive network, the implementation of National Day 7 will probably take place around 2025, and its standard will certainly be much stricter than that of National Day 6. However, I'm afraid that diesel vehicles will still be the focus of treatment. After all, the country is very concerned about the emission pollution of heavy diesel vehicles. In addition, according to the prediction of many institutions, China's ordinary passenger cars will almost be fully hybrid by 2025, and perhaps the energy consumption of hybrid systems will also become the target of the seventh national governance.
Although at present, diesel vehicles are still the best choice for long-distance car owners, once the emission standards are tightened again, if diesel vehicles want to meet the compliance standards, they will definitely invest higher costs. It has to be acknowledged that the sales volume of diesel vehicles in the market has been declining, and the comprehensive sales volume of pure electric and plug-in hybrid vehicles has gradually exceeded that of diesel vehicles. With the continuous improvement and upgrading of related technologies, it may be possible for new energy vehicles to overcome the existing drawbacks. Maybe only time can give us an accurate answer about the future of the Seventh National Day.
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