Transcript Electricity in Offices

Electricity in Offices
Topics
2 Electricity consumption
3 Energy saving attitude
4 Replacing old office technology
5 Power management
7 Working habits
9 Communication technologies
11 Displays
13 Save millions
15 Save paper
16 Save in lighting
17 Energy efficiency is our collective mission
Electricity consumption is increasing
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The share of service and public sectors together is 19 % of the
total electricity consumption in Finland
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In the service and office buildings electricity is consumed by
1.
2.
3.
4.
Indoor lighting
ADP-equipments: Computers, printers, copy machines and other equipments
HVAC-equipments
Kitchen appliances
In office buildings electricity consumption is typically distributed
as follows
1.
2.
3.
4.
5.
6.
Lightning 24 %
Electric heating 13 %
Computers 13 %
Ventilation 13 %
Cooling 12 %
Other 25 %
Source: Illuminating Engineering Society of Finland, The Association of Consulting Electrical
Engineers in Finland NSS.
Energy efficiency means the right attitude
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Major decisions of future energy consumption are made in the
planning and construction phase of a building
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Users and maintenance personal can also affect to the electricity
bill and the CO2-emissions with their activeness
1.
2.
3.
4.
5.
Taking into account energy efficiency in procurements
Instructing employees into energy efficient usage of systems and equipments
Informing of malfunctions and disadvantages
Informing of energy savings
Maintaining the systems and equipments regularly and fixing the malfunctions immediately
Energy efficiency is profitable
•
Replacing old office technology with modern and energy efficient
technology is reasonable
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Decreasing electricity consumption = economical savings and less
CO2-emissions from electricity production
2000
BAU 2010
Technically
Potential savings
GWh/a
GWh/a
achievable 2010
GWh/a
GWh/a
Office
719
719
240
479
890
927
234
693
1609
1646
474
1172
technology
Office
lightning
Offices
Total
Source: Work Efficiency Institute 384/2002
Power management decreases consumption
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Major part of energy consumption caused by office equipments
derives from waiting of the actual needs
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Power management features switches the equipment into stand-
by-mode when it is not in use
The technology saves on behalf on you
•
You will success in energy savings when you choose a copy
machine with an appropriate capacity and energy efficient
construction
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In the old fashion copy machines the stand-by-consumption is
significantly higher than in the modern, energy efficient ones
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Compare the energy consumption and properties in:
http://www.eu-energystar.org/
Concentrating the copying into active work time
is worthwhile
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Taking just one copy outside the actual work time can keep the
copy machine in readiness (operating power + stand by power) depending of settings - even hours.
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Proper power management features will decrease electricity
consumption and the costs of copying
Picture 1. By analyzing the power measurements potential energy
savings are indicated.
Kopiointivalmius= readiness mode
Energiansäästötila = energy saving mode
Off-tila = stand by mode
Source: VTT Technical Research Centre of Finland and Motiva, The Finnish
Environment 779/2005
Activate the energy saving and stand by modes
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Ask the copy machine supplier to take into use energy saving
features suited to your needs
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Ask the copy machine supplier to advice persons in charge how
to make energy efficient settings and how to take into use
energy saving features
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Check the settings of existing equipments and take into use
energy saving features
Efficient and saving communications technology
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The purpose of use determines configuration of the hardware.
There are still differences in energy efficiencies of hardwares
provided with similar performance. Compare and calculate:
http://www.eu-energystar.org/
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Expertness in design and implementation can reduce the
consumption of office network (LAN) into one tenth
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In separate equipments power management features can reduce
electricity consumption 50-80 %
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Activate all the energy saving features in every equipment
Manage your personal computer
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Everyone is responsible for energy consumption of a personal
computer
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Activate energy saving features in your personal computer
Turn off all your equipments and lights when leaving the office –
even for a 15 min coffee break
Reduce displays consumption by 50-80 %
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The bigger and more accurate the display is the bigger is its
consumption of electricity
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Save energy without compromising in quality
When choosing display take into account:
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Size and accuracy should be sufficient not oversized
Modern technologies: prefer LCD´s and TFT´s not CRT´s
Choice of the display and usage of energy saving features will
influence into electricity consumption
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CRT on and in use = 85 W
CRT with screen saver = 85 W
LCD/TFT on and in use = 30 W
Display (LCD/TFT or CRT) in energy saving mode = 5 W
Display (LCD/TFT or CRT) switched off = 2 W
Electricity consumption of a LCD/TFT- or CRT-display is about 2 W even if it swithed off
Switch off your display, when leaving your work
center
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Switching off your display and using energy saving features
reduces electricity consumption and increases life time of the
display
Save millions - simply
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By simple means of electricity savings can be
achieved top results in electricity consumption of
work centers and peripherals:
• Potential energy savings in Finland, totally 600 GWh/a
would be enough to warm up 30 000 electrically heated
detached houses
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CO2-emissions could decrease even 180 000 t/a
Represents economical savings of 50 million euro inflicted in
public sector, corporations and households
Purchase only energy efficient equipments
Use effectively energy saving features
Switch off your equipments when not in use
Ensure that energy saving instructions are obeyed
Multi-purpose-equipments have many
advantages
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One equipment – multiple properties
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Reduced purchase costs
Reduced energy consumption
Reduced space requirement
Reduced amount of equipments to be maintained
Don’t dissipate paper – it’s also dissipation of
energy
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Paper is not obvious resource because it takes plenty of energy
to produce, transport and dispose paper
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Reducing paper consumption in copying, sending documents and
other purposes in offices is very important target
Practical lighting means convenience
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In a conventional office lightning takes a 30-50 % proportion of
total electricity consumption
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Potential savings in lightning costs could be even 50-75 % if all
the offices would be illuminated with the most energy efficient
way
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Take advantage of natural light – keeps the windows clean
Switch off unnecessary lightning, if there is no automatic control in illumination
Luminescent lamps and energy saving lamps reduces energy consumption
compared to incandescent and halogen lamps
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Dust and dirt will decrease the luminosity of the illuminator
Energy efficiency is our common interest
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Improving energy efficiency is our collective mission where are
available simple means
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Energy efficiency reduces expenses but does not cause
unwanted stress nor inconvenience in work places or households
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To save energy – just click
We have energy saving week every week
Stand by is good bye