ALDI is one of the fastest growing retailers in the U.S., with more than 1,800 stores and plans to expand to 2,500 by 2022. With over 220 stores now using HFC-free technologies and a new goal for 100 more by the end of 2019, ALDI has emerged as the clear leader in adopting environmentally friendly refrigeration in the United States.

“ALDI is deeply committed to reducing its refrigerant emissions and believes natural refrigerants are the best long-term solution for the planet. To put this value into practice, ALDI has adopted transcritical CO2 refrigeration systems in many of its new and remodeled stores and targets 100 more in 2019. We are excited to continue to drive forward change with this commitment to hydrofluorocarbon reduction and natural refrigeration systems.”

-Aaron Sumida, Vice President, ALDI

Specific actions taken by ALDI U.S.:

  • Installing transcritical CO2 systems in over 220 stores with a new target to add 100 more stores in 2019. This reduces carbon emissions and makes ALDI a leading grocery retail user of CO2 refrigeration systems. Many of the company’s transcritical CO2 systems are located in California, where warmer climates require use of an adiabatic condenser to maintain energy efficiency.

  • Certifying over 160 stores as GreenChill Platinum as of December 2018 with the intention of certifying all transcritical CO2 systems in 2019.

  • Employing ammonia refrigeration systems in all warehouses, a natural refrigerant with a Global Warming Potential (GWP) of zero.

  • Self-contained equipment in over 900 stores is running on propane, another natural refrigerant with a low GWP.

  • ALDI is phasing out high-GWP refrigerants including R404A.

  • ALDI is upgrading to all LED lighting, during the store remodel program in order to further mitigate greenhouse gas emissions. As of 2018, 72% of ALDI stores have interior LED lighting.

  • Expanding the use of clean, solar energy to include rooftop systems on nine distribution centers and 99 stores, minimizing energy consumption from the grid.