The energy usage of modern 28 cubic-foot refrigerators averages 739 kWh per year. The four-door French door models (with dual bottom-drawer freezers) fared best with an average power consumption of 722 kWh per year, followed by two-door single bottom-drawer freezer models with an annual power consumption of 732 kWh per year.
Four-door (with no drawers) and two-door side-by-side refrigerators fared worst with a power consumption of 780 kWh and 739 kWh/per year respectively.
Annual Energy Cost Of 28 Cubic-Foot Refrigerators:
Energy Cost Of Four-Door French Door Models: $86.64.
Two-Door, Single Bottom-Drawer Freezer Models: $87.84.
Side-By-Side Models: $88.68.
Four-Door (No Drawers): $93.60.
No top-freezer models were included in this calculation. Although, top-freezer models do tend to be more energy-efficient than their side-by-side and bottom-freezer counterparts.