licht.wissen No. 01 "Lighting with Artificial Light"

EnEV (Energy Saving Ordinance):
Saving energy obligatory
The current version of the Energy Saving
Ordinance (EnEV) from October 2014
makes the efficient use of resources
mandatory. It puts a cap on the maximum
allowable total energy requirement of buildings,
including lighting. According to the
“EnEV”, an energy performance certificate
must be drawn up for each building, and
the primary or actual energy consumption
of the lighting always determined before
new construction or renovation. The callicht.wissen
01
Lighting with Artificial Light
Energy-efficient lighting
High energy efficiency is obtained through a combination of a high-efficiency luminaire system, needs-based use
and high-quality lighting. This helps protect the environment.
[87] A positive example: During the day
the office space is lit by natural daylight –
supported by LEDs and intelligent lighting
management which effectively ensures good
working conditions.
[89 + 90] A change to energy-efficient
lamps in combination with modern lighting
management saves up to 80% power and
operating costs in both indoor and outdoor
lighting.
Nowadays one of the quality characteristics
of a lighting system is low energy consumption.
The use of efficient lighting technology
and the intelligent exploitation of natural
light protect the environment and reduce
costs.
Better light quality, lower costs
The corresponding lighting technology is
available. The charts on page 49 show the
potential savings yielded by the individual
measures. The following components are
involved:
Luminaires with high light output ratios
and optimized light control through appropriate
grids and reflectors,
Efficient light sources with high luminous
efficacy levels (such as LED modules),
Modern electronic power supply units
and ballasts
Intelligently planned lighting concepts with
multiple switching groups which can be
dimmed and controlled separately and
independently of each other
Lighting management systems that
include daylight and presence sensors.
Control systems offer a high degree of
convenience and maximum potential for
savings. Presence detectors ensure that
lights are automatically dimmed or turned
off when no light is needed. The use of natural
daylight yields even greater efficiency.
In combination with a lighting management
system, energy requirements can be reduced
by up to 80 percent in comparison
to a conventional system.
Lighting management systems are available
in different configurations (see also page
46f.). These range from the simple regulation
of individual luminaires to complex systems
that are integrated into the building
system technology.
87
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