At the FMI Energy & Store Development Conference 2013 Walgreens presented its net zero energy retail store in Evanston Illinois, a showcase of innovative, sustainable and high-performance design that features carbon dioxide refrigeration for heating, cooling and refrigeration equipment. The project represents a number of firsts.
The integration of transcritical CO2 with geothermal expands the applicability of transcritical systems to warmer climates. The earth is much cooler than the outside air thereby producing a higher efficiency for CO2 systems. It also enables the application of significant geothermal based tax credits and incentives, thereby reducing the overall premium," said Rob Olden, Director of Engineering, GI Energy.