|
COMPUTERS AND PERIPHERALS
|
| ITEM |
MEASURED LOAD |
RATED LOAD |
|
Desktop Personal Computer |
130 watts |
460 watts |
|
Monochrome Monitor |
30 watts |
40 watts |
|
Colour Monitor |
60 watts |
90 watts |
|
Laptop Personal Computer |
11 watts |
21 watts |
|
Dot Matrix Printer |
50 watts (printing)
26 watts (idle) |
85 watts |
|
Laser Printer |
300 watts (printing)
150 watts (idle) |
850 watts |
|
Inkjet Printer |
10 watts (printing)
3 watts (idle) |
17 watts |
|
Note: "Measured Loads" reflect an average over a period of time. Actual measured loads are 20% to 40% of the "nameplate" ratings. |
|
OTHER OFFICE EQUIPMENT
|
|
ITEM |
MEASURED LOAD |
|
Facsimile Machine |
100 watts (transmitting)
15 watts (idle) |
|
Modem |
20 watts |
|
Electric Typewriter |
130 watts |
|
Floor Mounted Photocopier (mid range) |
600-1000 watts (copying)
100-250 watts (idle) |
|
Small Personal Photocopier |
250 watts (copying)
60 watts (idle) |
|
Note: Photocopiers come in many sizes, and, as a result, energy consumption can vary enormously. |
|
HOW MANY WATTS? HOW MUCH DOES IT COST PER HOUR?
Check the nameplate on the machine. Usually the energy rating is in amps and volts, not watts.
To convert to watts: Amps X Volts (115 or 120 standard outlet) = Watts
Cost per Hour: Watts ÷ 1000 = kilowatts X approximately $0.07 per kilowatt-hour |
