For several types of commercial refrigerators and freezers, higher efficiency levels than those in today’s rule would be cost-effective for purchasers and would achieve additional energy savings. However, the standard levels adopted by DOE capture the vast majority of the cost-effective energy savings.
Both the current standards and the new standards issued today include separate efficiency levels for open and glass-door cases. For the new standards, DOE did not analyze the potential energy savings from installing glass doors on open refrigerated cases. While some supermarkets have started to replace open cases with glass-door cases, roughly 50 percent of display cases in a typical supermarket are still open cases. Open cases often make supermarket aisles uncomfortable for customers and do not preserve food as well as closed cases, in addition to wasting a significant amount of energy. Typical supermarket refrigerator and freezer cases without doors sold today use three to four times as much energy as cases with glass doors.
Replacing open cases with glass-door cases and retrofitting open cases in stores to add doors represents a significant energy savings opportunity beyond the savings that will be achieved by today’s rule.It’s good to see that DOE is starting to catch up on overdue standards. (The statutory deadline for the final rule for commercial refrigeration equipment
These four rules will make an important contribution to meeting President Obama’s goal of reducing CO2 emissions by 3 billion metric tons by 2030 through efficiency standards. ASAP recently launched a “tracker” to monitor progress towards meeting the CO2 reduction goal and to track the total savings for consumers and businesses as a result of these new efficiency standards. Not counting today’s rule, efficiency standards adopted during the Obama administration will reduce CO2 emissions by 1.8 billion metric tons by 2030 and will net consumers and businesses $370 billion in savings.The new standards for commercial refrigeration equipment
Joanna Mauer is the technical advocacy manager at ASAP, which organizes and leads a broad-based coalition effort that works to advance, win and defend new appliance, equipment and lighting standards, which deliver large energy and water savings, monetary savings and environmental benefits.