Refrigeration	Wattage	Estimated Monthly Hours	Energy Use kwh/month	Cost/Month @ 11 cents/kwh
Newer Units*
Chest Freezer (manual defrost), 16 cu.ft.	120	288	35	$3.85
Upright Freezer (frost-free), 18-20 cu.ft.	280	324	91	$10.01
Compact Refrigerator, less than 2 cu.ft.	150	324	49	$5.39
Top-Mount Freezer (manual defrost), 10 cu.ft.	230	274	63	$6.93
Top-Mount Freezer (frost-free), 18-20 cu.ft.	330	288	95	$10.45
Top-Mount Freezer (frost-free), 24-26 cu.ft.	370	288	107	$11.77
Bottom-Mount Freezer (frost-free), 20-22 cu.ft.	370	288	107	$11.77
Side-by-Side (frost-free), 22-24 cu.ft.	360	324	117	$12.87
Side-by-Side (frost-free), 28-30 cu.ft.	400	324	130	$14.30
Older Units*
Chest Freezer (manual defrost), 16 cu.ft.	750	288	216	$23.76
Upright Freezer (frost-free), 18-20 cu.ft.	1,630	324	528	$58.08
Compact Refrigerator, less than 2 cu.ft.	280	324	91	$10.01
Top-Mount Freezer (manual defrost), 10 cu.ft.	580	274	159	$17.49
Top-Mount Freezer (frost-free), 18-20 cu.ft.	1,050	288	302	$33.22
Top-Mount Freezer (frost-free), 24-26 cu.ft.	1,220	288	351	$38.61
Bottom-Mount Freezer (frost-free), 20-22 cu.ft.	1,100	288	317	$34.87
Side-by-Side (frost-free), 22-24 cu.ft.	1,060	324	343	$37.73
Side-by-Side (frost-free), 28-30 cu.ft.	1,230	324	399	$43.89

KEY
* Increased energy efficiency standards for refrigerators and freezers were implemented in 1990, 1993 and 2001. Add 10% to 15% to operating cost for models with through-the-door ice and water service.