Powering the hidden tendrils of the information age

According to Jonathan Koomey (2007), the computer-servers in US data-centres and their associated plumbing (air conditioners, backup power systems, and so forth) consumed 0.4 kWh per day per person - just over 1% of US electricity consumption. That's the consumption figure for 2005, which, by the way, is twice as big as the consumption in 2000, because the number of servers grew from 5.6 million to 10 million.

Gadget

Power consumption (W)

on and

on but

standby

off

active

inactive

Computer and peripherals:

computer box

80

55

2

cathode-ray display

110

3

0

LCD display

34

2

1

projector

150

5

laser printer

500

17

wireless & cable-modem

9

Laptop computer

16

9

0.5

Portable CD player

2

Bedside clock-radio

1.1

1

Bedside clock-radio

1.9

1.4

Digital radio

9.1

3

Radio cassette-player

3

1.2

1.2

Stereo amplifier

6

6

Stereo amplifier II

13

0

Home cinema sound

7

7

4

DVD player

7

6

DVD player II

12

10

5

TV

100

10

Video recorder

13

1

Digital TV set top box

6

5

Clock on microwave oven

2

Xbox

160

2.4

Sony Playstation 3

190

2

Nintendo Wii

18

2

Answering machine

2

Answering machine II

3

Cordless telephone

1.7

Mobile phone charger

5

0.5

Vacuum cleaner 1600

Table 11.4. Power consumptions of various gadgets, in watts. 40 W is 1 kWh/d.

Table 11.4. Power consumptions of various gadgets, in watts. 40 W is 1 kWh/d.

LCD CRT Printer: 17 W 31W 108 W (on, idle)

Projector: 150 W Digital radio: 8W

Projector: 150 W Digital radio: 8W

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Getting Started With Solar

Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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