A conference promoting the grading system launched by Huzhou to evaluate companies' energy consumption efficiency and carbon emission performances is held in the city on Sept 26. [Photo/hz66.com]

The grading system launched by Huzhou early this year to evaluate companies' energy consumption efficiency and carbon emission performances will be promoted across Zhejiang province, according to officials at a news conference on Sept 26.

The system, which is the first of its kind in China, classifies companies related to metal smelting, textiles and other high energy consumption sectors into five grades according to their carbon emissions and output value.

Companies are able to check which grade they belong to by scanning a QR code. The carbon emissions are calculated based on energy consumption data.

To date, the data of more than 3,700 companies above designated size in 381 sectors in Huzhou have been collected.

China has set the goals of hitting peak emissions before 2030 and achieving carbon neutrality by 2060.

Huzhou has been working to reduce carbon emissions in recent years. By the end of 2020, clean energy accounted for 45 percent of the city's total installed power generation capacity.