As of 2015, the Bosch B11CB50SSS/01 is the top ranked ENERGY STAR refrigerator and Liebherr models CS 2060, CS 2061 and CS 2062 rank second. Two models of Fisher & Paykel refrigerators and several Samsung units complete the list.
Refrigerators on the ENERGY STAR most efficient list meet energy efficiency specifications created by the EPA. These products offer energy savings without sacrificing performance or features and any higher purchasing prices of these units are offset by reduced utility costs. The efficiency and performance of these units are measurable and verifiable.
The Bosch B11CB50SSS/01 is a 24 inch, counter-depth refrigerator. The bottom-mounted freezer has a 3.3 cubic foot capacity and the refrigerator section has a capacity of 7.7 cubic feet. This unit features all-level LED lighting, a door open alarm and electronic controls. The manufacturer's suggested price for this unit is $2,399.
ENERGY STAR also gave good marks to two models of Fisher & Paykel counter-depth refrigerators. The units are of the RF201A series and both use the company's ActiveSmart technology. This technology monitors the internal temperature and usage patterns of the unit and adjusts, using the minimum amount of energy needed to keep foods cool. The 20.1 and 20.2 cubic foot models have manufacturer's suggested prices of $2,299 and $2,599, respectively.