China had not updated its EREV standards for nine years. Now that they sell a million a year, they are going to catch up

The EREV (extended range electric vehicles, for its acronym in English), are beginning to have a lot of prominence in China. So much so, that in the country they have changed the regulations, publishing a complete review of their technical standard. This new revision, QC/T1086-2026, replaces a 2017 regulatory framework and will come into force on November 1. And it is that with more than 1 million units sold Every year in the country, the Chinese market begins to assimilate this type of vehicle that, outside of this region, is still relatively unknown to us.

Why does it matter? The previous standard, in force since 2017, described the requirements in a mostly qualitative way, since the manufacturer defined its own specifications and the regulatory framework barely provided specific figures. Nine years later, the market has changed a lot. And according to industry data collected by CarNewsChinasales of EREVs in China exceeded one million units in 2024 and reached 1.2 million in 2025. So with those figures, it is logical to think that the regulations had to be revised.

What the change consists of. Until now, the rules were somewhat vague, so this regulation aims to take a closer look at some EREV specifications and standardize them. An example is how much energy the gasoline engine delivers in each millisecond. And to give us an idea, now in the smallest generators (up to 67 HP), the maximum margin of error that will be allowed when delivering energy will be just 1.5 kW. For the most powerful engines, the deviation may not exceed 3%. That is, the motor must deliver energy to the battery more precisely and efficiently.

According to CarNewsChinathe thresholds have been set based on real production data from manufacturers and suppliers, with the aim that all major manufacturers on the market can meet them without difficulty, but that lower-performance designs are left out of the standard.

EMC and noise. One of the most relevant new features of the standard is the introduction of specific electromagnetic compatibility (EMC) and noise and vibration (NVH) tests. The first extended range cars were basically standby generators that started when the battery was depleted. Today’s systems now have integrated energy management components that work in constant coordination with the battery, electric motors and vehicle control systems.

This greater integration requires more demanding standards in electromagnetic interference and acoustic comfort. In fact, more recent models like the Aito M9which HIMA launched last May with up to 890 HP, or the IM Motors LS8 EREV, with 430 km of electric range, already reflect these changes, and are examples that have served to develop this new regulation.

Durability for long term use. The standard also introduces two durability tests: a test of 750 hours with alternating load and another of 100,000 start-stop cycles. Both were developed with real-world usage data and damage equivalence models, and are designed to simulate approximately 300,000 kilometers of real-world driving, including urban conditions with frequent starts.

Who is driving the market. The ecosystem of manufacturers that has driven this revision in the regulations includes both established brands and newer manufacturers. Li Auto, Seres, Deepal and Leapmotor have expanded their EREV offerings, while premium models such as the Aito M9 have helped position the technology in high-priced segments. Zeekr, Geely’s electric brandhas gone even further with the Zeekr 9X and 8X, since the former exceeded 50,000 accumulated deliveries in a few months after its launch and is scheduled to be exported to the Middle East, Central Asia and Europe during 2026.

Cover image | HIMA

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