Energy Cost - Air Conditioner

Air Conditioner - Central Unit

Typical Energy Input Approximate Cost for Normal Use
Efficiency Rating (SEER)
7.0 15¾¢ per ton per hour
9.0 12¢ per ton per hour
10.0 11¢ per ton per hour
11.0 9¾¢ per ton per hour
12.0 9¢ per ton per hour
13.0 8¼¢ per ton per hour
14.0 7¾¢ per ton per hour

Air Conditioner - Room Unit

Capacity (Btu/hr) Efficiency
Rating (EER)		 Usage Cost
6,000   (½ Ton) 7.0 857 Watts 7¾¢ per hour
8.5 706 Watts 6¼¢ per hour
10.0 600 Watts 5½¢ per hour
9,000     (¾ Ton) 7.0 1286 Watts 11½¢ per hour
8.5 1059 Watts 9½¢ per hour
10.0 900 Watts 8¢ per hour
11.0 818 Watts 7¼¢ per hour
12.0 750 Watts 6¾¢ per hour
12,000   (1 Ton) 7.0 1714 Watts 15¼¢ per hour
8.5 1412 Watts 12¾¢ per hour
10.0 1200 Watts 10¾¢ per hour
18,000 (1½ Ton) 7.0 2571 Watts 23¢ per hour
8.5 2118 Watts 19¢ per hour
10.0 1800 Watts 16¼¢ per hour
24,000 (2 Ton) 7.0 3429 Watts 31¢ per hour
8.5 2824 Watts 25¢ per hour
10.0 2400 Watts 21½¢ per hour