Appliance Energy Costs

Appliance Energy Costs
appliance
energy costs
operating costs for major
household appliances
taking responsibility
As an individual, your efficient use of energy brings benefits
such as lower bills, improved comfort levels in your home and
a reduced personal impact on the environment.
Acting together, our individual choices add up—for the benefit of our community, our environment and our energy future.
That’s the power of working together.
As your community energy company, we are committed to
sharing our experience and energy expertise. You can always
contact us for:
• Answers to your energy questions.
• Energy efficiency information and advice.
• Help in evaluating energy-saving options.
• Assistance in finding energy-efficient products.
How much do your appliances cost to operate?
Some appliances cost little to operate. Some cost a lot. The graph
on the next page gives typical monthly costs. It helps to determine
which appliances deserve energy-saving efforts.
Use this brochure to make energy decisions. Compare operating
costs of a microwave and the oven or a whole house fan and
central air conditioner. Make informed appliance choices.
Table of contents
Typical monthly costs . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
How to use this brochure . . . . . . . . . . . . . . . . . . . . . . . . 3
Figuring operating costs . . . . . . . . . . . . . . . . . . . . . . . . . 4
Gas appliance tables:
Appliances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Water Heater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electric appliance tables:
Air Conditioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Home Comfort/Ventilation. . . . . . . . . . . . . . . . . . . . . . 9
Home Entertainment/Office . . . . . . . . . . . . . . . . . . . 10
Kitchen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Laundry/Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Outdoor Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Waterbeds/Personal Care/Health Care . . . . . . . . . . 17
Water Heater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Hot Tubs/Spas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1
Some appliances cost little to operate. Some cost a lot. The graph
on the next page gives typical monthly costs. It helps to determine
which appliances deserve energy-saving efforts.
The cost to operate these products varies widely, but average
is about $20 per month. To save energy:
How much do your appliances cost to operate?
Hot Tubs/Spas
• Use a cover
• Buy a large heater to heat the water quickly
• Turn on the heater before use
• Turn off the heater when weather permits
Use this brochure to make energy decisions. Compare operating
costs of a microwave and the oven or a whole house fan and
central air conditioner. Make informed appliance choices.
Considerations:
• Location - indoors or out?
• Pump motor size?
• Heated with electricity or natural gas?
• Frequency of use?
• Size in gallons?
For general pump information, see page 16.
Look for this symbol when you shop
ENERGY STAR® labeled products use less energy
than other products. They reduce your energy
costs and help to protect the environment. We’re
an ENERGY STAR partner. Learn more about
qualifying products at www.energystar.gov or call
MGE at 252-7117.
Table of contents
Typical monthly costs . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
How to use this brochure . . . . . . . . . . . . . . . . . . . . . . . . 3
Figuring operating costs . . . . . . . . . . . . . . . . . . . . . . . . . 4
Gas appliance tables:
Appliances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Water Heater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electric appliance tables:
Air Conditioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Home Comfort/Ventilation. . . . . . . . . . . . . . . . . . . . . . 9
Home Entertainment/Office . . . . . . . . . . . . . . . . . . . 10
Kitchen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Laundry/Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Outdoor Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Waterbeds/Personal Care/Health Care . . . . . . . . . . 17
Water Heater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Hot Tubs/Spas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
20
1
2
19
*Based on a four-person household:
Average electric rate of $.13/kWh
Average gas rate of $1.25/therm
Average hot water use 64.3 gallons/day
Electric Appliances
(Excluding home heating and cooling.)
Gas Appliances
Clothes dryer (electric)
$13.31
Clothes dryer (gas)
$4.00
Clothes washer (ENERGY STAR®, water heated by gas)
$1.84
Clothes washer (typical, water heated by gas)
$6.76
Dehumidifier
$24.10
Freezer
$7.34
Lighting
$11.41
Microwave oven (20 minutes/day)
$1.71
Range (electric)
$5.52
Range (gas, with pilot light)
$6.65
Range (gas, without pilot light)
$2.92
Refrigerator
$8.10
Television (27”)
$2.00
Television - Plasma (42”)
$6.35
Water heater (electric, .86 energy factor)
$55.25
Water heater (electric, .93 energy factor)
$51.09
Water heater (gas, .54 energy factor)
$28.75
Water heater (gas, .61 energy factor)
$25.00
*Motor cost of operation depends on the type and use. See "Figuring operating
costs" (page 4) for more information.
1/4 hp
350
$0.046
$0.049
$0.053
1/3 hp
440
0.057
0.062
0.066
1/2 hp
580
0.075
0.081
0.087
3/4 hp
850
0.111
0.119
0.128
1 hp
980
0.127
0.137
0.147
1.5 hp
1,440
0.187
0.202
0.216
2 hp
1,900
0.247
0.266
0.285
1/4"
240
0.031
0.034
0.036
3/8"
360
0.047
0.050
0.054
1/2"
540
0.070
0.076
0.081
Grinder
312
0.041
0.044
0.047
Router
600
0.078
0.084
0.090
Sander
200
0.026
0.028
0.030
Chain
1,380
0.179
0.193
0.207
Circular
1,200
0.156
0.168
0.180
360
0.047
0.050
0.054
1,380
0.179
0.193
0.207
Soldering iron
250
0.033
0.035
0.038
Table
Jig
Saws:
Drills:
Tools
Motors*
$.13
$.14
$.15
Medium to small energy users
Typical
Cost per hour of operation at the
wattage
following rates (per kWh)
Typical monthly costs*
Workshop
Workshop
How to use this brochure
Get your utility rate
Find your rates by adding components from your MGE bill.
For natural gas add the rates for therms used:
• Distribution Service
• Administrative Charge
• Natural Gas Service
For electricity add the rates for kWh used:
• Distribution Service
• Electricity Service
The energy prices in this brochure are not a prediction of future
costs/ rates. This range of gas and electric rates is provided to
cover possible fluctuations in energy prices mainly due to volatility
of natural gas costs. Natural gas is traded on a national commodity
exchange and its costs are affected by supply and demand.
Find the average cost of using appliances
• Gas appliance tables, pages 5 to 6
• Electric appliance tables, pages 7 to 19
The tables are grouped by use or room, then divided between big
energy users and medium to small energy users.
Estimated monthly costs for big energy users
Big energy users cost the most to operate. Use these appliances
wisely to lower monthly bills.
Find the average amount of electricity used each month in the
kWh/month column. It’s based on average-size appliances and
average monthly use.
3
Many big energy users are controlled by a thermostat. They turn
on and off automatically. Energy use is estimated with an average
amount of “on” time.
Cost per hour for medium to small energy users
The cost per hour of operation is given for appliances that use
medium to small amounts of energy.
Find the column that is closest to the electric or gas rate you pay.
Use this column to find the hourly cost of operation. Multiply the
cost per hour by the number of hours per month the appliance is
used. This is the monthly cost.
Figuring operating costs
Have an appliance that’s not listed? Calculate the operating cost
or borrow a portable energy meter from the library.
Gas appliances
Divide the Btu rating by 100,000. This is the number of therms
used in one hour of operation. Multiply by the rate per therm
(see page 3, Get your utility rate) and by the number of hours
the appliance is used.
Cost of operation =
Btus
100,000
x rate/therm x hours used
For example: A gas clothes dryer uses 20,000 Btus per hour.
Estimate that it runs one hour per load. How much does it cost
to dry one load?
Cost of operation =
4
20,000
100,000
x $1.25/therm x 1 = $.25
Electric appliances
Find the wattage of the appliance. It may be stamped on the back or
bottom. Divide the wattage by 1,000 to get the kilowatts used per
hour. Multiply this by the rate per kilowatt-hour (see page 3, Get
your utility rate) and by the number of hours the appliance is used.
Cost of operation = Wattage x rate/kWh x hours used
1,000
Some appliances cycle on and off automatically, using energy only
when they are on. To figure their energy use, estimate the amount
of time they use energy.
For example: The dehumidifier uses 620 watts. Estimate that it runs
10 hours a day. How much does it cost to run the dehumidifier
per day?
Cost of operation =
620
1,000
x $.13 x 10 = $.81
Some appliances list only amperage and volts. They may be
stamped on the back or bottom. If it plugs into a standard outlet,
it’s a 120 volt appliance. Use amperage multiplied by volts to figure
the operating cost.
Cost of operation = Amperage x volts x rate/kWh x hours used
1,000
Caution: Using this formula usually overestimates operating costs.
Portable Energy Meter
For the most accurate electric appliance operating cost, borrow
a portable energy meter. Accurate and easy to use, this tool has
helped hundreds of individuals save energy and make appliance
decisions. It may be reserved for checkout through all public
libraries in the South Central Library System.
5
Ga Appliances
Appliances
Gas
Big energy users
Monthly cost estimate
(rates per therm)
Btu/hour
$1.25
$1.50
$1.75
20,000
$4.00
$4.80
$5.60
Clothes dryer*
*Approximate therm/load = 0.1 and average use = 32 loads per month.
Medium to small energy users
Hourly cost estimate
(rates per therm)
Gas fireplace (sealed)
Btu/hour
$1.25
$1.50
$1.75
18,000
0.225
0.270
0.315
30,000
0.375
0.450
0.525
45,000
0.563
0.675
0.788
50,000
0.625
0.750
0.875
75,000
0.938
1.125
1.313
Grill
27,000
0.338
0.405
0.473
Outdoor gas light
2,000
0.025
0.030
0.035
Surface unit
9,000
0.113
0.135
0.158
Oven, bake-broiler unit
25,000
0.313
0.375
0.438
Broil unit
20,000
0.250
0.300
0.350
Pilot light
400
0.005
0.006
0.007
200,000
2.500
3.000
3.500
Dryer
300
0.004
0.005
0.005
Range
400
0.005
0.006
0.007
1,000
0.013
0.015
0.018
Standard gas
750
0.009
0.011
0.013
Efficient gas
400
0.005
0.006
0.007
Gas log set
Range:
Swimming pool heater
Pilot lights:
Furnace
Water heater:
6
Ga Water
Water Heater
Gas
Heater
Estimated hot water costs
Approx.
Average therms/ Monthly cost estimate
Btu/hour
use*
month
(rates per therm)
$1.25
$1.50
$1.75
Typical - since 1990 40,000
(Energy Factor = .54)
64.3
gals./day
23.0
28.75
34.50
40.25
High efficiency
40,000
(Energy Factor = .61)
64.3
gals./day
20.0
25.00
30.00
35.00
Demand - tankless 180,000
64.3
water heater, no pilot
gals./day
light
(Energy Factor = .82)
15.0
18.75
22.50
26.25
2.9
3.63
4.35
5.08
Pilot light
400
Continuous
*Based on a household of four.
Cost per use
Therms
per use
Cost per use
(rates per therm)
$1.25
$1.50
$1.75
Dishwasher (ENERGY STAR)
0.037
0.05
0.06
0.06
Dishwasher (typical)
0.051
0.06
0.08
0.09
Clothes washer (ENERGY STAR)
0.046
0.06
0.07
0.08
Clothes washer (typical)
0.169
0.21
0.25
0.30
Shower
0.110
0.14
0.17
0.19
Tub bath
0.165
0.21
0.25
0.29
Note: Based on standard gas water heater, Energy Factor = .54. Electricity cost
per load of dishes is about 10 cents. Electricity cost per load of clothes is about
2 cents. These costs are in addition to the cost of gas for heating water.
7
Ai Conditioning
-Conditioni g
Air
8.0 SEER*
Central air conditioner - Estimated seasonal cost
Size (tons)**
1.5
2
2.5
3
$102
$137
$171
$205
3.5
$239
(typical pre 1992)
10.0 SEER
82
109
137
164
191
74
68
63
99
91
84
124
114
105
149
137
126
174
159
147
56
75
94
113
132
55
51
73
68
91
85
109
102
127
119
(least efficient allowed after
1992)
11.0 SEER
12.0 SEER
13.0 SEER
(least efficient allowed after
2006)
14.5 SEER
(ENERGY STAR minimum
efficiency after 2008)
15.0 SEER
16.0 SEER
*Seasonal energy efficiency rating (SEER) compares air conditioners over an
entire cooling season. Costs are for 325 hours of operation at $0.14 per kWh.
**Expressed in tons (one ton equals 12,000 Btus/hour).
Note: A typical central air conditioner costs between 20 and 60 cents per hour
of operation.
Room air conditioner - Estimated seasonal cost
8.0 EER* (typical pre-1990)
9.7 EER (least efficient after 2000)
10.7 EER (ENERGY STAR minimum efficiency)
Size
(Btus per hour)
8,000
12,000
$45
$68
37
56
34
51
*Energy efficiency rating (EER) compares air conditioners under continuous
operation. Costs are for 325 hours of operation at $0.14 per kWh.
Note: A typical room air conditioner costs between 10 and 20 cents per hour of
operation.
8
Home Comfort/Ventilation
l
Typical
wattage
Air-to-air heat exchanger
Electronic fireplace
Electronic air cleaner
Fans:
Attic
Bathroom exhaust
Ceiling
Furnace:*
With efficient fan motor
With standard fan motor
Kitchen range hood
20" to 24" window
Oscillating
24" whole house
30" whole house
Heater:
Portable space heater
4-foot electric baseboard
heater
Humidifier:
Portable
Furnace
Vaporizer:
Steam
Cool spray
Whole house exhaust system
55
200
1,500
100
Cost per hour of operation at the
following rates (per kWh)
$.13
$.14
$.15
$0.0072
$0.0077 $0.0083
0.0260
0.0280
0.0300
0.1950
0.2100
0.2250
0.0130
0.0140
0.0150
375
60
100
0.0488
0.0078
0.0130
0.0525
0.0084
0.0140
0.0563
0.0090
0.0150
250
500
250
200
88
390
575
0.0325
0.0650
0.0325
0.0260
0.0114
0.0507
0.0748
0.0350
0.0700
0.0350
0.0280
0.0123
0.0546
0.0805
0.0375
0.0750
0.0375
0.0300
0.0132
0.0585
0.0863
1,500
1,000
0.1950
0.1300
0.2100
0.1400
0.2250
0.1500
88
115
0.0114
0.0150
0.0123
0.0161
0.0132
0.0173
420
60
75
0.0546
0.0078
0.0098
0.0588
0.0084
0.0105
0.0630
0.0090
0.0113
*Typical furnace fan runs about 1,000 hours per heating season and 400 hours
per cooling season.
Dehumidifier:
Typical dehumidifier
ENERGY STAR dehumidifier
kWh/
month
194
163
Estimated monthly cost at the
following rates (per kWh)
$.13
$.14
$.15
$25.22
$27.16
$29.10
21.19
22.82
24.45
9
Kitchen
Big energy users (continued)
kWh/
Estimated monthly cost at
month the following rates (per kWh)
$.13
$.14
$.15
Freezer
Chest freezer - 12 cubic foot
(approx.):
July 2001 or newer (ENERGY
STAR models)
1993 to June 2001
1990 to 1993
Older than 1990
Upright - 15 cubic foot (approx.),
manual defrost:
July 2001 or newer (ENERGY
STAR models)
1993 to June 2001
1990 to 1993
Older than 1990
5.85
7.67
12.61
45
59
97
4.68
36
4.03
7.02
10.79
31
54
83
3.25
25
3.50
4.34
7.56
11.62
5.04
6.30
8.26
13.58
3.75
4.65
8.10
12.45
5.40
6.75
8.85
14.55
Note: Auto defrost increases operating costs by about 60%. Each cubic foot
larger adds about 15 kWh per year.
Blender
Broiler
Coffee maker (drip):
2 to 10 cups
Coffee percolator:
5 to 12 cups
12 to 36 cups
25 to 100 cups
Corn popper:
Oil-type
Hot air-type
Deep-fat fryer
Medium to small energy users
Typical
Cost per hour of operation at the
wattage
following rates (per kWh)
$.13
$.14
$.15
$0.0520
$0.0560
$0.0600
0.1950
0.2100
0.2250
400
1,500
Exhaust fan
12
Fondue pot
Food dehydrator
Food processor
Fry pan/skillet
Garbage disposal
Griddle
Hot plate
Ice crusher
Microwave oven
Pressure cooker
Roaster
Rotisserie
Slow cooker (high setting):
2 quart
4 to 6 quart
Toaster:
2 slice
4 slice
Toaster oven
Wok
0.0780
0.1417
0.1950
600
1,090
1,500
0.1820
1,400
575
1,200
900
1,200
1,500
275
750
400
360
1,300
500
1,470
1,100
180
1,300
1,300
1,350
1,575
0.1960
0.0840
0.1526
0.2100
0.1400
0.2100
0.1890
0.1400
0.1300
0.1950
0.1755
0.1300
0.0161
0.0280
0.0150
0.0260
0.0805
0.1680
0.1260
0.1680
0.2100
0.0385
0.1050
0.0560
0.0504
0.1820
0.0700
0.2058
0.1540
0.0252
0.1820
0.1820
0.1890
0.2205
0.0748
0.1560
0.1170
0.1560
0.1950
0.0358
0.0975
0.0520
0.0468
0.1690
0.0650
0.1911
0.1430
0.0234
0.1690
0.1690
0.1755
0.2048
0.2100
0.0900
0.1635
0.2250
0.0863
0.1800
0.1350
0.1800
0.2250
0.0413
0.1125
0.0600
0.0540
0.1950
0.0750
0.2205
0.1650
0.0270
0.1950
0.1950
0.2025
0.2363
Home Comfort/Ventilation
Home Comfort, Ventilation
Typical
wattage
Air-to-air heat exchanger
Electronic fireplace
Electronic air cleaner
Fans:
Attic
Bathroom exhaust
Ceiling
Furnace:*
With efficient fan motor
With standard fan motor
Kitchen range hood
20" to 24" window
Oscillating
24" whole house
30" whole house
Heater:
Portable space heater
4-foot electric baseboard
heater
Humidifier:
Portable
Furnace
Vaporizer:
Steam
Cool spray
Whole house exhaust system
55
200
1,500
100
0.0488
0.0078
0.0130
375
60
100
0.0114
0.0150
88
115
0.1950
0.1300
1,500
1,000
kWh/
month
194
163
88
275
0.0114
0.0358
0.0123
0.0385
0.0132
0.0413
45
400
15
60
0.0059
0.0520
0.0020
0.0078
0.0063
0.0560
0.0021
0.0084
0.0068
0.0600
0.0023
0.0090
10
100
10
0.0013
0.0130
0.0013
0.0014
0.0140
0.0014
0.0015
0.0150
0.0015
75
240
150
30
160
0.0098
0.0312
0.0195
0.0039
0.0208
0.0105
0.0336
0.0210
0.0042
0.0224
0.0113
0.0360
0.0225
0.0045
0.0240
ENERGY STAR
Refrigerator
Top freezer - 18.5 to 20.4 cubic
foot (bottom freezer models use
about the same amount):
July 2001 or newer (ENERGY
STAR models)
1993 to June 2001
1990 to 1993
Older than 1990
Side-by-Side - 21.5 to 22.4 cubic
foot:
July 2001 or newer (ENERGY
STAR models)
1993 to June 2001
1990 to 1993
Older than 1990
Compact - 1.7 to 6.0 cubic foot manual defrost:
Conventional
0.0173
0.0300
0.0072
0.0263
0.0030
Range
Small surface unit
Large surface unit
Oven bake unit
Broil unit
Self-cleaning
11
37
4.81
5.18
58
82
100
7.54
10.66
13.00
8.12
11.48
14.00
8.70
12.30
15.00
51
6.63
7.14
7.65
71
110
135
9.23
14.30
17.55
9.94
15.40
18.90
10.65
16.50
20.25
32
26
4.16
3.38
4.48
3.64
4.80
3.90
115
200
0.0067
0.0245
0.0028
0.1500
0.2250
0.2025
0.1500
0.0062
0.0228
0.0026
1,000
1,500
1,350
1,000
48
175
20
kWh/
month
1,300
2,400
3,200
3,600
4,000
Cost per use
0.0015
0.0029
0.0203
0.0150
0.0008
Cost per use at the following
rates (per kWh)
$.14
$.15
0.0560
0.0600
0.0014
0.0027
0.0189
0.0140
0.0007
$.13
0.0520
0.0013
0.0025
0.0176
0.0130
0.0007
kWh per load
0.4
10
19
135
100
5
5.55
Estimated monthly cost at
the following rates (per kWh)
$.13
$.14
$.15
Estimated cost per hour at the
following rates (per kWh)
$.13
$.14
$.15
0.17
0.18
0.20
0.31
0.34
0.36
0.42
0.45
0.48
0.47
0.50
0.54
0.52
0.56
0.60
Typical
wattage
Dishwasher
Typical dishwasher including
electricity to heat water
ENERGY STAR dishwasher
including electricity to heat
water
Bread maker
Cost per hour of operation at the
following rates (per kWh)
$.13
$.14
$.15
$0.0072
$0.0077 $0.0083
0.0260
0.0280
0.0300
0.1950
0.2100
0.2250
0.0130
0.0140
0.0150
0.0325
0.0650
0.0325
0.0260
0.0114
0.0507
0.0748
250
500
250
200
88
390
575
0.0546
0.0078
0.0098
420
60
75
0.0525
0.0084
0.0140
0.0350
0.0700
0.0350
0.0280
0.0123
0.0546
0.0805
0.2100
0.1400
0.0123
0.0161
0.0588
0.0084
0.0105
0.0563
0.0090
0.0150
0.0375
0.0750
0.0375
0.0300
0.0132
0.0585
0.0863
0.2250
0.1500
0.0132
0.0173
0.0630
0.0090
0.0113
*Typical furnace fan runs about 1,000 hours per heating season and 400 hours
per cooling season.
Dehumidifier:
Typical dehumidifier
ENERGY STAR dehumidifier
Estimated monthly cost at the
following rates (per kWh)
$.13
$.14
$.15
$25.22
$27.16
$29.10
21.19
22.82
24.45
9
10
Note: Ice makers will increase operating costs by 15% to 20%. Through-thedoor ice and water dispensers will add another 10% to 15% to operating costs.
Each cubic foot larger adds about 25 kWh per year.
*Pages per minute.
**High-definition televisions use more.
Cable box converter
Computer (desktop):
With CRT monitor
With LCD monitor
In standby mode
Computer (laptop):
With LCD monitor
Computer printers:
Ink jet (3 ppm*):
Idling
Printing
Laser (4 ppm*):
Idling
Printing
Laser (8 ppm*):
Idling
Printing
Fax machine (laser):
Standby
Active
Radio
Stereo
Fish aquarium:
Filter
Heater
Pump
Television:**
27" conventional
42" plasma
42" LCD
Digital video recorder
Video game system
Medium to small energy users
Typical
Cost per hour of operation at the
wattage
following rates (per kWh)
$.13
$.14
$.15
25
$0.0033
$0.0035
$0.0038
2/load
0.31
5/load
kWh/use
Big energy users
HomeEntertainment/Office
Entertainment/Office
Home
0.34
0.36
Estimated cost per load at the
following rates (per kWh)
$.13
$.14
$.15
0.65
0.70
0.75
Kitchen
Kitchen
Kitchen
Kitchen
Big energy users
kWh/use
Dishwasher
Typical dishwasher including
electricity to heat water
ENERGY STAR dishwasher
including electricity to heat
water
Range
Small surface unit
Large surface unit
Oven bake unit
Broil unit
Self-cleaning
5/load
2/load
Typical
wattage
1,300
2,400
3,200
3,600
4,000
Refrigerator
Top freezer - 18.5 to 20.4 cubic
foot (bottom freezer models use
about the same amount):
July 2001 or newer (ENERGY
STAR models)
1993 to June 2001
1990 to 1993
Older than 1990
Side-by-Side - 21.5 to 22.4 cubic
foot:
July 2001 or newer (ENERGY
STAR models)
1993 to June 2001
1990 to 1993
Older than 1990
Compact - 1.7 to 6.0 cubic foot manual defrost:
Conventional
ENERGY STAR
kWh/
month
Estimated cost per load at the
following rates (per kWh)
$.13
$.14
$.15
0.65
0.70
0.75
0.31
0.34
0.36
Estimated cost per hour at the
following rates (per kWh)
$.13
$.14
$.15
0.17
0.18
0.20
0.31
0.34
0.36
0.42
0.45
0.48
0.47
0.50
0.54
0.52
0.56
0.60
Estimated monthly cost at
the following rates (per kWh)
$.13
$.14
$.15
37
4.81
5.18
5.55
58
82
100
7.54
10.66
13.00
8.12
11.48
14.00
8.70
12.30
15.00
51
6.63
7.14
7.65
71
110
135
9.23
14.30
17.55
9.94
15.40
18.90
10.65
16.50
20.25
32
26
4.16
3.38
4.48
3.64
4.80
3.90
Note: Ice makers will increase operating costs by 15% to 20%. Through-thedoor ice and water dispensers will add another 10% to 15% to operating costs.
Each cubic foot larger adds about 25 kWh per year.
11
Kitchen
Big energy users (continued)
kWh/
Estimated monthly cost at
month the following rates (per kWh)
$.13
$.14
$.15
Freezer
Chest freezer - 12 cubic foot
(approx.):
25
3.25
3.50
3.75
July 2001 or newer (ENERGY
STAR models)
1993 to June 2001
31
4.03
4.34
4.65
1990 to 1993
54
7.02
7.56
8.10
Older than 1990
83
10.79
11.62
12.45
Upright - 15 cubic foot (approx.),
manual defrost:
36
4.68
5.04
5.40
July 2001 or newer (ENERGY
STAR models)
1993 to June 2001
45
5.85
6.30
6.75
1990 to 1993
59
7.67
8.26
8.85
Older than 1990
97
12.61
13.58
14.55
Note: Auto defrost increases operating costs by about 60%. Each cubic foot
larger adds about 15 kWh per year.
Blender
Broiler
Coffee maker (drip):
2 to 10 cups
Coffee percolator:
5 to 12 cups
12 to 36 cups
25 to 100 cups
Corn popper:
Oil-type
Hot air-type
a
12
Medium to small energy users
Typical
Cost per hour of operation at the
wattage
following rates (per kWh)
$.13
$.14
$.15
400
$0.0520
$0.0560
$0.0600
1,500
0.1950
0.2100
0.2250
1,400
0.1820
0.1960
0.2100
600
1,090
1,500
0.0780
0.1417
0.1950
0.0840
0.1526
0.2100
0.0900
0.1635
0.2250
575
1,200
0.0748
0.1560
0.0805
0.1680
0.0863
0.1800
600
Kitchen
90
Medium to small energy users (continued)
Cost per hour of operation at the
Typical
575
748
0.0
wattage
following 0.0805
rates (per kWh)
. 56
. 68
0$.15
180
$.13
$.14
Deep-fat fryer
900
0.1170
0.1260
0.1350
1,200
0.1560
0.1680
0.1800
1,500
0.1950
0.2100
0.2250
Exhaust fan
275
0.0358
0.0385
0.0413
Fondue pot
750
0.0975
0.1050
0.1125
Food dehydrator
400
0.0520
0.0560
0.0600
Food processor
360
0.0468
0.0504
0.0540
Fry pan/skillet
1,300
0.1690
0.1820
0.1950
Garbage disposal
500
0.0650
0.0700
0.0750
Griddle
1,470
0.1911
0.2058
0.2205
Hot plate
1,100
0.1430
0.1540
0.1650
Ice crusher
180
0.0234
0.0252
0.0270
Microwave oven
1,300
0.1690
0.1820
0.1950
Pressure cooker
1,300
0.1690
0.1820
0.1950
Roaster
1,350
0.1755
0.1890
0.2025
Rotisserie
1,575
0.2048
0.2205
0.2363
Slow cooker (high setting):
2 quart
115
0.0150
0.0161
0.0173
4 to 6 quart
200
0.0260
0.0280
0.0300
Toaster:
2 slice
1,000
0.1300
0.1400
0.1500
4 slice
1,500
0.1950
0.2100
0.2250
Toaster oven
1,350
0.1755
0.1890
0.2025
Wok
1,000
0.1300
0.1400
0.1500
Cost per use
Bread maker
kWh per load
0.4
Cost per use at the following
rates (per kWh)
$.13
$.14
$.15
0.0520
0.0560
0.0600
13
Laundry, Utility
Laundry/Utility
Estimated laundry use - electric water heater
Cost per
kWh load at Loads Estimated monthly cost
per
$0.13
per
at the following rates
load (kWh) month
(per kWh )
$.13
$.14
$.15
Clothes washer:
ENERGY STAR clothes
0.65
washer including electricity
to heat water
8.5¢
32
2.91
3.14
3.36
Typical clothes washer
2.40 31.2¢
including electricity to heat
water
32
9.98
10.75
11.52
Electric clothes dryer:
With typical washer
3.20 41.6¢
32
13.31
14.34
15.36
With ENERGY STAR washer 2.50 32.5¢
32
10.40
11.20
12.00
Note: ENERGY STAR washers remove more water, so they save on drying time.
Medium to small energy users
Typical
Cost per hour at the following
wattage
rates (per kWh)
$.13
Carpet cleaner
Floor waxer/cleaner
Iron
$.14
$.15
1,200
0.1560
0.1680
0.1800
350
0.0455
0.0490
0.0525
1,000
0.1300
0.1400
0.1500
Sewing machine
100
0.0130
0.0140
0.0150
Sump pump (1/3 hp)
620
0.0806
0.0868
0.0930
Vacuum cleaner
650
0.0845
0.0910
0.0975
3
0.0004
0.0004
0.0005
Water softener
14
ighting
Lighting
Medium to small energy users
Typical
Cost per hour of operation at the
wattage
following rates (per kWh)
$.13
$.14
$.15
Christmas lights:
Miniature - 50 per string
Miniature - 100 per string
C-7 - 25 per string
LED - 35 per string
Household lighting:
ENERGY STAR compact
fluorescent torchiere
Halogen torchiere
(not recommended)
Standard incandescent
Fluorescent:
4-foot tube
Efficient 4-foot tube
Circle including ballast
Compact fluorescent
Outdoor lighting:
Standard flood/spotlights
Compact fluorescent
flood/spotlights
Halogen flood/spotlights
Compact fluorescent
Mercury vapor
Metal halide
High-pressure sodium
17
35
125
3
$0.002
0.005
0.016
0.0004
$0.002
0.005
0.018
0.0004
$0.003
0.005
0.019
0.0005
58
0.008
0.008
0.009
300
500
40
60
75
100
150
0.039
0.065
0.005
0.008
0.010
0.013
0.020
0.042
0.070
0.006
0.008
0.011
0.014
0.021
0.045
0.075
0.006
0.009
0.011
0.015
0.023
40
34
22
32
9
15
20
27
0.005
0.004
0.003
0.004
0.001
0.002
0.003
0.004
0.006
0.005
0.003
0.004
0.001
0.002
0.003
0.004
0.006
0.005
0.003
0.005
0.001
0.002
0.003
0.004
75
150
23
0.010
0.020
0.003
0.011
0.021
0.003
0.011
0.023
0.003
45
90
18
175
39
50
0.006
0.012
0.002
0.023
0.005
0.007
0.006
0.013
0.003
0.025
0.005
0.007
0.007
0.014
0.003
0.026
0.006
0.008
15
Outdoo Equipment
Equipment
Outdoor
Medium to small energy users
Typical
Cost per hour of operation at the
wattage
following rates (per kWh)
$.13
$.14
$.15
600
$0.078
$0.084
$0.090
6 amperes output
155
0.020
0.022
0.023
10 amperes output
235
0.031
0.033
0.035
Bug exterminator (large)
145
0.019
0.020
0.022
Electric fence
100
0.013
0.014
0.015
Garage door opener
350
0.046
0.049
0.053
Edger
650
0.085
0.091
0.098
Hedge trimmer
300
0.039
0.042
0.045
Weeder
440
0.057
0.062
0.066
50
0.007
0.007
0.008
Lawn mower
1,200
0.156
0.168
0.180
Outdoor grill (electric)
1,500
0.195
0.210
0.225
Snow blower (electric)
840
0.109
0.118
0.126
700
0.091
0.098
0.105
4-foot by 70-foot sidewalk
11,200
1.456
1.568
1.680
10-foot by 50-foot
driveway
20,000
2.600
2.800
3.000
1,000
0.130
0.140
0.150
Sump pump - 1/3 hp
620
0.081
0.087
0.093
Swimming pool pump
1,300
0.169
0.182
0.195
Jet pump - 1/2 hp
1,200
0.156
0.168
0.180
Submersible - 1/2 hp
1,200
0.156
0.168
0.180
Auto engine heater
Battery charger:
Garden tools:
Heat tape - 10-foot
Snow melting cable:
100-foot gutter
Stock tank heater
Water pump*:
*Water pump for single-family residence runs about one to two hours per day.
16
Waterbeds Personal Ca
e Heal h Care
Waterbeds/Personal
Care/Health
Care
Big energy users
kWh/
Estimated monthly cost at the
month
following rates (per kWh)
$.13
$.14
$.15
Waterbed heater (350-watt)
King-size bed at 90°F:
Room 70°F, with comforter
123
15.99
17.22
18.45
Room 70°F, unmade bed
162
21.06
22.68
24.30
Room 60°F, with comforter
195
25.35
27.30
29.25
Room 60°F, unmade bed
234
30.42
32.76
35.10
Medium to small energy users
Typical
Cost per hour of operation at
wattage
the following rates (per kWh)
$.13
$.14
$.15
Blanket
200
$0.026
$0.028
$0.030
Curling iron
40
0.005
0.006
0.006
1,200
0.156
0.168
0.180
Heating pad
50
0.007
0.007
0.008
Heat lamp/sun lamp
250
0.033
0.035
0.038
Back
55
0.007
0.008
0.008
Foot
135
0.018
0.019
0.020
Hand
30
0.004
0.004
0.005
Home
400
0.052
0.056
0.060
Portable
42
0.005
0.006
0.006
Hair dryer (hand held)
Massager:
Oxygen concentrator:
17
Elect i Water
Water Heater
Electric
Heater
Big energy users
Typical Average kWh/ Estimated monthly cost at the
wattage
use
month following rates (per kWh)*
$.13
$.14
$.15
Standard
(Energy Factor = .86)
3,800
64.3
gals./day
425
$55.25
$59.50
$63.75
High-efficiency
(Energy Factor = .93)
3,800
64.3
gals./day
393
51.09
55.02
58.95
Heat pump
2,500
64.3
gals./day
141
18.33
19.74
21.15
*Based on a household of four.
Cost per use*
kWh
per use
Cost per use at the following
rates (per kWh)
$.13
$.14
$.15
2.4
0.31
0.34
0.36
Hand
1.6
0.21
0.22
0.24
Typical dishwasher
2.1
0.27
0.29
0.32
Shower
1.9
0.25
0.27
0.29
Tub bath
2.9
0.38
0.41
0.44
Typical clothes washer
Dishwashing:
*Based on standard electric water heater listed above.
18
W ksh p
Workshop
Medium to small energy users
Typical
Cost per hour of operation at the
wattage
following rates (per kWh)
$.13
$.14
$.15
Motors*
1/4 hp
350
$0.046
$0.049
$0.053
1/3 hp
440
0.057
0.062
0.066
1/2 hp
580
0.075
0.081
0.087
3/4 hp
850
0.111
0.119
0.128
1 hp
980
0.127
0.137
0.147
1.5 hp
1,440
0.187
0.202
0.216
2 hp
1,900
0.247
0.266
0.285
1/4"
240
0.031
0.034
0.036
3/8"
360
0.047
0.050
0.054
1/2"
540
0.070
0.076
0.081
Grinder
312
0.041
0.044
0.047
Router
600
0.078
0.084
0.090
Sander
200
0.026
0.028
0.030
Chain
1,380
0.179
0.193
0.207
Circular
1,200
0.156
0.168
0.180
360
0.047
0.050
0.054
1,380
0.179
0.193
0.207
250
0.033
0.035
0.038
Tools
Drills:
Saws:
Jig
Table
Soldering iron
*Motor cost of operation depends on the type and use. See "Figuring operating
costs" (page 4) for more information.
19
Hot Tubs/Spas
The cost to operate these products varies widely, but average
is about $20 per month. To save energy:
• Use a cover
• Buy a large heater to heat the water quickly
• Turn on the heater before use
• Turn off the heater when weather permits
Considerations:
• Location - indoors or out?
• Pump motor size?
• Heated with electricity or natural gas?
• Frequency of use?
• Size in gallons?
For general pump information, see page 16.
Look for this symbol when you shop
ENERGY STAR® labeled products use less energy
than other products. They reduce your energy
costs and help to protect the environment. We’re
an ENERGY STAR partner. Learn more about
qualifying products at www.energystar.gov or call
MGE at 252-7117.
20
....
....
taking responsibility
listening. learning.
As an individual, your efficient use of energy brings benefits
such as lower bills, improved comfort levels in your home and
a reduced personal impact on the environment.
MGE takes responsibility to provide information and education
to serve our customers and stakeholders. We educate customers
today to help inform their decision making. We educate
tomorrow’s stakeholders so they can help plan our energy future.
Acting together, our individual choices add up—for the benefit
of our community, our environment and our energy future.
That’s the power of working together.
As your community energy company, we are committed to
sharing our experience and energy expertise. You can always
contact us for:
• Answers to your energy questions.
• Energy efficiency information and advice.
• Help in evaluating energy-saving options.
• Assistance in finding energy-efficient products.
CN000011 03/02/2010
....
....
When you’re shopping for new appliances, always look for the
ENERGY STAR label. Homes with ENERGY STAR® appliances
can save more than $300 a year in operating costs, about
25%
of average annual costs. Working together we can make a
difference.
Contact us for information about:
• Heating/Air-conditioning.
• Insulating/Weatherizing.
• Lighting.
• Windows/Doors.
• Appliances.
• Water heating.
Get more home energy information at:
• mge.com/home.
• Home Energy Line 608-252-7117.
• 800-245-1125.
Questions about billing? Call:
• 608-252-7222.
• 800-245-1125.
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