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used in discussions. We can also directly feel the effects of thermal comfort with heating or cooling. We must look beyond air quality and address all aspects of Indoor
Environmental Quality (IEQ): ventilation, cooling, heating, daylight, electric lighting, air-conditioning, dehumidification, plumbing and building automation and controls. The visual impact of lighting can be felt directly, i.e. we can see sufficiently to carry out our task and for orientation. The impact on our body and emotions from lighting is felt more indirectly but has meanwhile been proven in many studies. With good quality lighting employees perform better, students score higher, and it improves the sleep, mood and behaviour of patients suffering from Alzheimer disease.
LIA recommendations No renovation without an upgrade of lighting installations. Focus on non-residential buildings (public and commercial buildings), as already set out in the Energy Performance of Buildings Directive. We believe that public buildings should lead by example. Use LED lighting, in combination with controls and sensors. By switching from incandescent lamps to energy efficient LED lamps, it is estimated that Europeans have benefitted from up to 90% savings. Furthermore, these lighting systems, in addition to allowing for large energy savings, also offer significant benefits to the building users as regards their visual comfort, wellbeing, and productivity. Prioritise a full renovation of luminaires to include controls and sensors, with a minimum SRI level. “Just relamping” – simple replacement of a lamp –
should be avoided. Replacing luminaires or introducing a whole new lighting design should be encouraged as this will lead to greater benefits in terms of energy savings and IEQ. The Smart Readiness Indicator (SRI) should be applied across the EU to maximise its energy savings potential and capture all the benefits it can bring to the wellbeing and performance of building occupants. Renovations should lead to a certain minimum SRI score. Introduce mandatory minimum requirements on IEQ. Criteria for lighting can be found in EN 12464-1 and should be referenced in the Renovation Wave Initiative. Access to public financing should be subject to the fulfilment of certain conditions. An obligation to include lighting renovation to obtain full subsidy should be introduced.
Conditions to be fulfilled Lighting should comply with EN 12464-1. Use of controls and sensors, with minimum SRI level: For lighting service 1a (occupancy control for indoor lighting), a minimum functionality level of 2 (automatic detection) should be required, as level 2 functionality is simple to implement and is based on established technologies that provide good additional levels of energy saving and user satisfaction as compared to level 1; and For lighting service 2 (control artificial lighting power based on daylight
levels), a minimum functionality level of 3 (automatic dimming) should be required, as level 3 functionality is simple to implement and is based on established technologies that provide good additional levels of energy saving and user satisfaction as compared to level 2.
For more information, please refer to LightingEurope’s Position Paper on Healthy Buildings, Recommendations on the Renovation Wave Initiative
22 | electrical wholesalerSeptember 2020
ewnews.co.uk
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