Actice Energy Efficiency from Scneider Electric

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Making permanent savings
Making permanent savings
through Active Energy Efficiency
through
Active Energy Efficiency
February 2008 / White paper

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Summary
@ Executive Summary .............................................................. p 3
@ Introduction .......................................................................... p 4
@ The current situation ............................................................. p 7
@ Taking action on energy ........................................................ p 9
@ Active Energy Efficiency in the built environment ................... p 12
@ Active Energy Efficiency Solutions for medium and large
commercial markets ................................................................ p 15
@ Solutions for the Residential and small commercial markets .. p 17
@ Solutions for Industry and infrastructure markets ................... p 19
@ Conclusion ............................................................................ p 21

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Making permanent savings
through Active Energy Efficiency
Executive Summary
This white paper argues strongly that meeting greenhouse gas
emissions targets set within the Kyoto Protocol will fail unless Active
Energy Efficiency becomes compulsory.
Active Energy Efficiency is defined as effecting permanent
change through measurement, monitoring and control of energy
usage. Passive energy efficiency is regarded as the installation
of countermeasures against thermal losses, the use of low
consumption equipment and so forth.
It is vital, but insufficient, to make use of energy saving equipment
and devices such as low energy lighting. Without proper control,
these measures often merely militate against energy losses rather
than make a real reduction in energy consumed and in the way it is
used.
Everything that consumes power – from direct electricity
consumption through lighting, heating and most significantly electric
motors, but also in HVAC control, boiler control and so forth – must
be addressed actively if sustained gains are to be made. This
includes changing the culture and mindsets of groups of individuals,
resulting in behavioural shifts at work and at home, but clearly, this
need is reduced by greater use of technical controls.
Making permanent savings through Active
Energy Efficiency

White paper on Energy Efficiency - 3

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4 - White paper on Energy Efficiency

Making permanent savings
Introduction
through Active Energy Efficiency
That energy efficiency is high on the agenda of most people is now
undoubted. However, understanding of what energy efficiency really
involves and how energy saving initiatives can be implemented
remains fragmented.
For this reason some companies, such as Schneider Electric,
have defined two approaches to energy efficiency: Passive Energy
Efficiency; and more significantly Active Energy Efficiency.
For many, energy measures revolve around the consideration
of thermal issues in the building fabric with remedies such as
insulation, glazing, and heat loss countermeasures. For others,
it is lighting, albeit often constrained to merely installing low
consumption systems. Those with significant heating requirements
may see efficient boiler systems as the answer.
All of the above are laudable and necessary, but they are really only
passive countermeasures that largely mitigate energy loss rather
than the energy deployed.
Active Energy Efficiency can be achieved when not only are
energy saving devices and equipment installed, but also that they
are controlled to use only the energy required. It is this aspect of
control that is critical to achieving the maximum efficiency. If an
illustration of what is meant is needed, consider an energy efficient
lamp that is left turned on in an empty room. All that is achieved is
that less energy is wasted than would have been using an ordinary
lamp!
It is the management of energy use through measurement,
monitoring and control that effects permanent change.
Moreover, compared with the costs (and technical skills
necessary to avoid risks) of installing thermal solutions,
energy control can be implemented at a relatively modest
Electricity
38 %
price and a very rapid payback. This is especially true
when measured against escalating energy prices – most
energy control solutions can be amortised within a few
years.
A further very important factor that should drive Active
Energy Efficiency from this point forward is the need to
meet ambitious carbon reduction targets set by those
governments in alliance with the Kyoto Protocol. In the
built environment, for example, it is a fact that unless
existing buildings (as well as all new build) are made
energy efficient, it will simply be impossible to reach the
targets set for 2020.
Fig above: Energy consumption figures demonstrate key
areas of energy usage by type
49 % Space heating
16 % Water heating
7 % Lighting
7 % Cooling
5 % Refrigeration
Combustibles
62 %
5 % Cooking
4 % Electronics
4 % Washer/Dryer
3 % Other
Electricity
50 %
23 % Space heating
17 % Lighting
10 % Water heating
8 % Cooling
6 % Electronics
5 % Refrigeration
Combustibles
4 % Ventilation
50 %
4 % Cooking
23 % Other
40 % Process Heat
Electricity
27 % Boilers for Steam
17 %
13 % Motors Systems
5 % Facility Heat
4 % Lighting & other
4 % CHP
Combustibles
85 %
Transportation
27 %
Residential
16 %
Commercial
8 %
Industrial
49 %
2 % process Cooling
4 % Cooking
5 % Other

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Making permanent savings
through Active Energy Efficiency
Reducing greenhouse gas emissions is a global target set at the
Kyoto Earth Summit in 1997 and finally ratified by 169 countries in
December 2006.
Under the Kyoto Protocol industrialised countries have agreed to
reduce their collective emissions of greenhouse gases by 5.2%
by 2008-2012 compared to the year 1990 (however, compared to
the emissions levels expected by 2012 prior to the Protocol, this
limitation represents a 29% cut). The target in Europe is an 8%
reduction overall with a target for CO2 emissions to fall by 20% by
2020.
This white paper looks at the approaches to Active Energy
Efficiency that can be applied within new and existing buildings – in
commerce, industry, private, public and residential – as well as in
manufacturing, industry and the transport infrastructure

White paper on Energy Efficiency - 5

Sources: EIA 2003, International Energy Outlook 2007, World Resource Institute

World Marketed Energy Consumption, 1980-2030
Ouadrillion Blu sun
History Projections 600 _.1