Amman, Jordan, store is saving 40,000kWh per year in a high-temperature climate after leap-frogging from R22 to CO2, bypassing HFCs.
The transcritical CO2 system provides heat for snow melting, space, hot water, floor and warehouse heating.
The Canadian supermarket, which uses transcritical CO2 refrigeration and an absorption chiller, has cut its reliance on the grid by 70%.
The U.S. chain’s first transcritical system in a New Jersey store continues to outperform legacy systems.
The EU-funded MultiPACK project is testing the performance of cooling/heating CO2 solutions in supermarkets and other buildings.
Retailer expects energy savings to yield a five-to-seven year ROI on premium paid for equipment, one of a small number of ammonia systems installed in stores worldwide.