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05.09.2018, 11:11

Absentmindedness Wasting Energy Resources

Company News, Energy Management, Energy Management and Conservation, EMEA
The typical office computer is left unattended for at least two hours every working day and needlessly consumes 200 watts (0.2 kilowatts) of electricity during this period.

Taking a typical office in the United Kingdom as an example, the average hourly energy consumption of a PC is 1.5 pence and aggregates to £700 annually (or £15 a working week) for every 100 PCs or workstations.


But it isn’t just PCs sending the bills soaring—lights are a major culprit too. One-hundred light bulbs left on unnecessarily for two hours per day could cost £471.12 in wasted energy over the course of a year. 


According to the Energy Saving Trust, the UK squanders £170 million a year simply by leaving lights on in empty rooms. Failing to switch off office lights overnight consumes enough energy in one year to heat a home for five months.


Further statistics from the Energy Saving Trust show that leaving devices such as TVs, laptops, printers and cordless phones on standby can add £30 to an average annual household bill. Apply this to the number of appliances found in the average office and the figure increases significantly.


A University of Cambridge study revealed that photocopiers switched on all day but used for only 20% of that time account for £320 in wasted electricity each year. A photocopier left powered up overnight will go through enough energy to produce over 1,500 copies.


Bruce Catrill, marketing manager at power module supplier CMD, says:  "Electricity is wasted on a daily basis simply because employees don’t think to turn off devices when they’re not using them. Often this is because devices automatically go into sleep mode. Also, many corporate IT departments fail to re-set the power management settings on the CPU’s/Computers to reduce time in sleep mode. In a large workforce this can represent a significant value. ” 


Although switching off and unplugging appliances at the socket is the only foolproof way to stop them consuming electricity, he adds: "Generally, people won’t remove a plug from its socket for fear of inadvertently unplugging the wrong device. Providing on-desk plug sockets for employees not only serves as a visual reminder to disconnect electrical items when they’re not in use, but also takes the guesswork out of what lead is connected to what device. Using energy management devices at workstations will also help employers save money by monitoring exactly how much energy is being used—and wasted–on a daily basis.” 




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