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Energy Efficiency - Commercial Fact Sheet

Fact sheet photo Ever wonder where your energy dollar is going or how much the energy costs are for your computer? This Business Customer Fact Sheet is designed to help you get an idea how much it costs to run the types of equipment you use.

This document provides an estimate of energy costs. Your energy costs may vary. Average cost per kwh -- $ 0.171; Average cost per therm -- $ 0.63.

Lighting
Cooling
Refrigeration
Electric Cooking
Office Equipment
Electric Motors
Gas Equipment

1. Lighting

Lighting	Watts	Cost ($ per hour)
Incandescent / Halogen
40 to 60 watts	50 (per lamp)	$0.01
75 to 100 watts	88 (per lamp)	$0.02
120 to 150 watts	135 (per lamp)	$0.02
200 to 300 watts	250 (per lamp)	$0.04
325 to 500 watts	400 (per lamp)	$0.07
1000 watts	1000 (per lamp)	$0.17
Mercury Vapor (bluish white)
50 to 100 watts	75 (per lamp)	$0.01
175 to 250 watts	215 (per lamp)	$0.04
400 watts	400 (per lamp)	$0.07
Metal Halide (White)
32 to 100 watts	66 (per lamp)	$0.01
175 to 250 watts	215 (per lamp)	$0.04
400 watts	400 (per lamp)	$0.07
High Pressure Sodium (golden)
35 to 100 watts	65 (per lamp)	$0.01
150 to 250 watts	200 (per lamp)	$0.03
400 watts	400 (per lamp)	$0.07
Fluorescent: standard T12 tubes with magnetic ballast
1 - 4-ft tube and ballast	55 (per fixture)	$0.01
2 - 4-ft tube and ballast	96 (per fixture)	$0.02
3 - 4-ft tube and ballast	148 (per fixture)	$0.03
4 - 4-ft tube and ballast	192 (per fixture)	$0.03
1 - 8-ft tube and ballast	100 (per fixture)	$0.02
2 - 8-ft tube and ballast	172 (per fixture)	$0.03

2. Cooling including ventilation

Cooling including ventilation	Watts	Cost ($ per hour)
Heat pump (heating and cooling)	1,400 (per ton of cooling)	$0.24
Electric air conditioner	1,400 (per ton of cooling)	$0.24
Evaporative cooler	933 (per horsepower)	$0.16

3. Refrigeration

Refrigeration	Watts	Cost ($ per hour)
Residential refrigerator (13 hrs/day normal usage)	175 (each)	$0.03
Residential freezer	150 (each)	$0.03
Commercial freezer with doors	215 (per linear foot)	$0.04
Commercial refrigerator with doors	123 (per linear foot)	$0.02
Commercial refrigerator without doors	160 (per linear foot)	$0.03
Walk-in refrigerated storage	12 (per cubic foot)	$0.01

4. Electric Cooking

Electric Cooking	Watts	Cost ($ per hour)
Coffee maker	164 (each)	$0.03
Microwave oven	1,500 (each)	$0.26
Toaster oven	750 (each)	$0.13

5. Office Equipment

Office Equipment	Watts	Cost ($ per hour)
Desk top personal computer (13 hrs/day normal usage)	90 (each)	$0.02
Color monitor	47 (each)	$0.01
Laser printer	227 (each)	$0.04
Ink jet printer	5 (each)	$0.01
Floor mounted photocopier	628 (each)	$0.11
Table top photocopier	450 (each)	$0.08
Fax machine	57 (each)	$0.02

6. Electric Motors

Electric Motors	Watts	Cost ($ per hour)
Fractional horsepower (less than 1 hp)	250 (each)	$0.04
One horsepower and above	746 (per horsepower)	$0.13

7. Gas Equipment

Gas Equipment	Btu per hour input rating	Cost ($ per hour)
Heater (gas furnace operated 50% of the time)	60,000 (each)	$0.19
Water heater (40-gal water heater; 30% cycle factor)	45,000 (each)	$0.09