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Energy consumption is a key decision factor for any lighting solution. Knowing that lighting represents up to 30% of a building's energy consumption, it is clear that remarkable savings in operational cost can be achieved with a good lighting design.

Energy savings can be achieved in different ways:

*Converting standard lamps and/or conventional gear for energy friendly lamps and/or HF ballasts in existing lighting installations

*Complete and integral (renovation) project.

It is clear that re-doing the lighting installation normally generates the highest energy savings but many times even a re-lamping exercise can lead to significant cost reductions.Below all criteria for Lighting System components are listed

Lamps

-To achieve maximum savings one should select the range of lamps that meet the quality requirements such as colour properties, light intensity, etc and then choose the lamp which has the highest efficacy within the group.

Well known energy saving lamps with superior lighting qualities and life times:

~Compact fluorescent lamps instead of incandescent lamps'TL'D Super /80 New Generation series instead of standard 'TL' lamps'TL'5 lamps instead of standard 'TL' lamps

~MASTERline ES halogen lamps instead of standard halogen lamps

~Mastercolour lamps instead of halogen lampsHPI lamps instead of SON-T lamps

Control Gear

Selection criteria

~Ballast loss
~Harmonic considerations
~Effects of the control gear on the lamp
Range

High frequency electronics gearsSuper low loss ballasts

Luminaire

Selection criteria

To achieve maximum savings, one should select the range of lamps satisfying the quality requirements such as colour properties, etc. and then select the lamp which has the highest efficacy within the group. Criteria to be considered:

~Light output ratio
~Optical systems (reflectors, louvres, etc.) and their distribution

Range

High efficiency OLC optics for indoor officesPOT optics for road lighting

Automotive
The newer the technology, the lower the energy consumption. This is the rule of thumb for the development of our automotive lighting technologies. Philips products, packaging and the production process are efficient in their energy consumption, waste reduction and environmental-friendliness.

Lighting controls give a greater amount of choice in energy savings. Systems such as day light controls and movement sensors help in using optimum energy while retaining the lighting effects. The following are the lighting control options available for consideration:

~Occupancy sensors switching the lighting when required
~Day light sensors dimming the lighting system according to day light available
~Building management systems.

Range

Trios, Scenio, Chronosense systemsLightMaster, Helio management systemsTele-management system for road lighting