Haier Carrier’s Sustainable Ice Making Technology Creates Optimal Conditions for Record-Setting Performances at National Speed Skating Oval in Beijing

In February 2022, the National Speed Skating Oval (NSSO), also called the "ice ribbon," held its inaugural international competition in Beijing with athletes setting 10 new records and a world record in speed skating. Qingdao Haier Carrier Refrigeration Equipment Co., Ltd. (Haier Carrier) introduced the transcritical carbon dioxide (CO₂) ice making system for the NSSO. Haier Carrier is a joint venture established in 2001 by Haier Group and Carrier Global Corporation (NYSE: CARR), the leading global provider of healthy, safe, sustainable and intelligent building and cold chain solutions.

To create higher-quality ice, the NSSO utilized carbon dioxide (CO₂ ) as a natural refrigerant for its ice-making technology, a historic first for the indoor ice venue. Speed skating requires extremely flat ice surfaces. The smaller the difference in temperature between ice and the surface, the flatter the ice. The new technology can control ice temperature variances within 0.5 degrees.

To ensure the ice surface remains in peak condition, it must be resurfaced six to seven times a day during competitions. Carrier's transcritical CO₂ ice making system takes less than 10 minutes to ensure that the ice surface is restored to competition standards.

The NSSO covers an area of about 12,000 square meters, almost equal to the size of a track field. The ice making system uses Carrier’s high-capacity PowerCO2OL solution and consists of several high-capacity racks with 4 MW max cooling capacity running on natural refrigerant CO₂, which has a low global warming potential (GWP) of 1 and near-zero carbon emissions.

With more than 30% energy savings compared to a standard system, Carrier’s transcritical technology achieves optimized energy efficiency. In post-event operation, it can save nearly two million kilowatt- hours of electricity each year, making the ice rink an environmentally sustainable venue. Carrier’s transcritical CO₂ technology is also used in all types of high-energy applications such as medium and large warehouses, distribution centers and food processing sites.

For more information, visit www.haier-carrier.com.

About Haier Carrier
Qingdao Haier Carrier Refrigeration Equipment Co., Ltd. is a joint venture established in 2001 by Haier Group and Carrier Global Corporation, the leading global provider of healthy, safe, sustainable and intelligent building and cold chain solutions. It is a world-class, ISO9001-certified facility producing supermarket display cabinets (more than 1,000 specifications), compressor units (scroll, piston and screw), and heat exchangers (air-cooled condenser and air cooler). It can provide customers with whole sets of freezer and refrigeration solutions such as Ground Source Heat Pump (GSHP) technology, HybridCO2OL® cascade refrigeration technology and CO2OLtec® transcritical refrigeration technology, both using ultra-low GWP refrigerant. The company is committed to providing advanced energy-saving systems, including CO₂ refrigerant systems, for customers in the Asia Pacific region.