Daylight 2009 Marcfontoynont

LONG TERM ASSESSMENT OF COSTS ASSOCIATED WITH LIGHTING AND DAYLIGHTING TECHNIQUES by Marc Fontoynont

Speakers

Marc Fontoynont

Professor

Danish Building Research Institute, Aalborg University

Building lighting and daylighting systems disserve to be assessed over long periods of time (over 30 years) for optimization. The interest is to provide professionals and investors a way to compare the real cost of lighting solutions. This assessments must include product costs, installation costs, maintenance cost, and energy requirements. In our process, the lighting techniques are compared on the basis of illumination delivered on work plane (0.8 m from the floor) per year (Unit: Megalumen.hours/year). The currency is the Euro since all data were computed for the European environment. Performance of daylighting techniques were assessed using climatic data recorded in Lyon, France (Latitude 45.7°N). The selected daylighting techniques were: roof monitors, façade windows, borrowed light windows, light wells, daylight guidance systems, as well as off-grid lighting based on LEDs powered by photovoltaics. These solutions were compared with electric lighting installations consisting of various sources: fluorescent, tungsten and LED.

 

After classifying the total annual running costs associated to illumination delivered for each system, we found that standard daylighting techniques provide light in a cheaper way than electric lighting (3 to 20 times typically) with best performances reached by rooftops. However, if the objective is to bring daylight deep into building interiors, daylighting solutions appear expensive, except if daylighting guidance systems are employed (using highly reflective coating). Hence the necessity to approach optimal design of daylighting with care, giving high priority to roof systems and facade systems. Core daylighting techniques aiming at bringing daylight deeply in building interiors need a very careful financial assessment.

 

The study points out however, than if LED lighting options could be delivered at a third of today’s price (30 €/ Klm instead of 100 €/Klm today) LED could become a cost effective solution for indoor lighting, competitive to fluorescent lighting.

 

This study does not address the life cycle analysis and the environmental impact of lighting systems, which could make daylighting solutions even more appealing.

 

Marc Fontoynont, Professor, Director Laboratoire Sciences de l’Habitat, Département Génie Civil et Bâtiment, ENTPE. Vice president of CIE (International Commission on Illumination) and Director of CIE division 3. Vice- President of l’Association Française de l’Eclairage (AFE Paris). Marc Fontoynont is responsible for extensive research in the areas of optics, photometry, light distribution, luminous environment perception and daylight characterization.

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“Windows and roof tops for our well-being: their contribution to the value...” by Marc Fontoynont

Much Untertrifaller On Flexible Pecha Kucha
Pecha KuchaFlexible

Much Untertrifaller on Flexible | Pecha Kucha

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Health

Ingrid Reumert and Katie McCrory on Health

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Paul Bogard at the 6th VELUX Daylight Symposium

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5th VELUX DAYLIGHT ACADEMIC FORUM

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THE SIGNIFICANCE OF WINDOWS TO GERMANS A QUALITATIVE, ANTHROPOLOGICAL INVESTIGATION OF THE QUALITIES OF A WINDOW

First International Workshop on Future Light Technology and Human Health

Michael Ambjørn On Quality
Pecha KuchaQuality

Michael Ambjørn on Quality | Pecha Kucha

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3rd VELUX DAYLIGHT ACADEMIC FORUM DEDICATED TO PhD STUDENTS WORKING WITH DAYLIGHT RESEARCH

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“Daylight as a qualitative aspect and driving element in developing architecture“ by Stefan Behnisch

Sbi Lumenet

LUMENET 2018 – WORKSHOP FOR PHD STUDENTS IN COPENHAGEN 16-17 AUGUST

Louis Becker And Chris Precht On Daylight In Architecture (Europe)
Daylight in Architecture

Louis Becker and Chris Precht on Daylight in Architecture (Europe)

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KEY LEARNINGS ABOUT DAYLIGHT PERFORMANCE IN A DEMONSTRATION BUILDING AND POTENTIAL OUTCOMES

Kevin Van Den Wymelenberg, Nicole Porter, Ayesha Batool, Natalia Vasquez, Till R
Pandemics

Kevin Van Den Wymelenberg, Nicole Porter, Ayesha Batool, Natalia Giraldo Vasquez, Till Roenneberg - Pandemics

Andres

FOCUSING ON PEOPLE WITH CLEAR PRIORITIES TOWARDS BETTER ARCHITECTURE

Daylight 2011 Perarnoldandersen

WELCOME TO THE 4TH SYMPOSIUM by Per Arnold Andersen

Dayligth Saving Time

BACK TO WINTER TIME

Daylight 2011 Johnmardaljevic

DO WE KNOW ENOUGH YET TO PREDICT THE NON-VISUAL EFFECTS OF DAYLIGHT IN BUILDINGS? AN EXPLORATORY STUDY by John Mardaljevic

VELUX Daylight Academic Forum 3 Edited 1

DAYLIGHT ACADEMIC FORUM FOR PH.D. STUDENTS, NOVEMBER 18, 2021

Daylight 2007 Henrikwannjensen

STATE-OF-THE-ART IN COMPUTER SIMULATED DAYLIGHTING by Henrik Wann Jensen

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"Temporal variability on discomfort glare from daylight" by Michael Kent

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Epigenetics & and the built environment - Deborah Burnett

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DAYLIGHT ANALYSIS IN THE DESIGN PROCESS OF RESIDENTIAL BUILDINGS

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LIGHT TO LIFE

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"A comparative gaze responsive comfort evaluation" by Mandana Sarey Khanie

Francisca Rodriguez On Contact To The Outdoors
Contact to the Outdoors

Francisca Rodriguez on Contact to the Outdoors

Daylight 2007 Johnmardaljevic

CLIMATE-BASED DAYLIGHT MODELLING FOR EVALUATION AND EDUCATION by John Mardaljevic

Johan Lapere 500X500

"Renovactive Replications in the BenHuur Projects" by Johan Lapere

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“Light in the public realm” by James Carpenter

Thekla Ehling FA 6401

D/A – DESIGN WITH SUNLIGHT FIRST

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REGISTRATION NOW OPEN FOR 6TH VELUX DAYLIGHT SYMPOSIUM IN LONDON ON 2-3 SEPTEMBER 2015

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Christoph Reinhart at the 6th VELUX Daylight Symposium

Lid Display

Lighting Design Students create new lighting possibilities for the Absalon Church

Daylight 2009 Rolfgerstlauer

DAYLIGHT, SUSTAINABILITY AND HEALTH IN ARCHITECTURAL EDUCATION by Rolf Gerstlauer

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The Benefits of Windows - Martine Knoop

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"Daylight and the Experience of Landscape" by Martin Schwartz

Daylight 2007 Christianvogt

SONDERSCHULE SCHWECHAT – DAYLIGHT EVALUATION by Christian Vogt

Natalie Mossin On Daylight Education
Daylight Education

Natalie Mossin on Daylight Education

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"Light and architecture" by Cui Kai

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"Daylight levels in Swedish buildings as a base for modernized regulations" by Marie-Claude Dubois

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CALL FOR PAPERS 6TH VELUX DAYLIGHT SYMPOSIUM 2-3 SEPTEMBER 2015

Sabine Pauquay On Health Pecha Kucha
Pecha KuchaHealth

Sabine Pauquay on Health | Pecha Kucha

Closure Keithriddle Healthybuildingsday

Healthy Buildings Day closure by Keith Riddle

Lone Wiggers Web

LONE WIGGERS: LIVE KEYNOTE FROM THE 7th VELUX DAYLIGHT SYMPOSIUM

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"An Illustrated Address" by Thomas Vonier

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“Using immersive virtual reality in lighting research and practice” by Kynthia Chamilothori

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EARTH HOUR ON SATURDAY 28 MARCH 2015 AT 20:30

Didier Mignery 500X500

"Transforming Cities" by Didier Mignery

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The influence of sunlight on the indoor health - Richard Hobday

Martin Haas On Communities
Pecha KuchaCommunities

Martin Haas on Communities | Pecha Kucha

Anders Lonka On Quality
Pecha KuchaQuality

Anders Lonka on Quality | Pecha Kucha

Ibbotson Family 500X500

"Just Like Living Outside" by Family Ibbotson Testimonial

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"Designing Visually Accessible Spaces: Predicting Visibility" by Rob Shakespeare

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Computational Design

Mikkel Esrup Steenberg on Computational Design

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"Daylight paradox- evaluation based on LEED v4 and prEN-17037 Daylight of Buildings" by Anne Iversen

Blog Ways Into The Light

WAYS INTO THE LIGHT

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What Attracts Our Visual Attention?" by Caroline Karmann

Daylight 2011 Myriamaries&Laurenszonnefeldt

DAYLIGHT DYNAMICS WITH REGARD TO HUMAN NEEDS by Myriam Aries and Laurens Zonneveldt

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"Case Studies by cepezed and its Human Response to Daylight in Architecture" by Ronald Schleurholts

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ENGAGEMENT AND KNOWLEDGE SHARING IN SCIENTIFIC FORUMS

Mecs Green Roof Among Others

GLANCING AT A GRASSY GREEN ROOF SIGNIFICANTLY BOOSTS CONCENTRATION

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4th VELUX DAYLIGHT ACADEMIC FORUM DEDICATED TO PhD STUDENTS WORKING WITH DAYLIGHT RESEARCH

Marcus Fairs, Lorenzo De Simone, Mary Parsons And Dana Behrman On Quality
Quality

Marcus Fairs, Lorenzo de Simone, Mary Parsons and Dana Behrman on Quality

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"Daylight Modeling and Simulation Standards" by Zack Rogers

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"Environmental Surfing for Health, Productivity and a Resilient Future" by Vivian Loftness

Juri Troy On Quality
Quality

Juri Troy on Quality

Daylight 2007 Lisaheschong (3)

DAYLIGHTING AND STUDENT PERFORMANCE by Lisa Heschong

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"Daylight and the Indoor Microbiome" by Kevin Van Den Wymelenberg

Marcus Fairs, Kasper Guldager, Susanne Brorson And James Drinkwater On Environment 2 (2)
Environment

Marcus Fairs, Kasper Guldager, Susanne Brorson and James Drinkwater on Environment

Ingrid Reumert 500X500

"Healthy Homes Barometer 2019 & Political Framing" by Marjolaine Meynier-Millefert & Ingrid Reumert

Mette Tony On Quality
Quality

Mette Tony on Quality

Aljosa Dekleva On Flexible
Pecha KuchaFlexible

Aljosa Dekleva on Flexible | Pecha Kucha

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FINAL PROGRAMME NOW AVAILABLE FOR THE 6TH VELUX DAYLIGHT SYMPOSIUM

Light Cultures – New Technologies, Aesthetics, and Climate Policies

Natalia Sokol And Federica Giuliani On Daylight Education
Daylight Education

Natalia Sokol and Federica Giuliani on Daylight Education

Daylight 2009 Wesseldejonge

DAYLIGHT AND MODERNITY: DESIGN AND REDESIGN OF THE VAN NELLE DESIGN FACTORY by Wessel de Jonge

New CIBSE Lighting Guide 10: Daylighting – A Guide for Designers: Lighting for the Built Environment

Daylight 2009 Stevemwlockley

CIRCADIAN PHOTORECEPTION: MORE THAN MEETS THE EYE by Steven W. Lockley

Rick Joy On Daylight In Architecture (America)
Daylight in Architecture

Rick Joy on Daylight in Architecture (America)

Ye Qing On Daylight In Architecture (Asia)
Daylight in Architecture

Ye Qing on Daylight in Architecture (Asia)

A CIBSE Daylight Group event: Assessing new metrics for daylight prediction

Harwil De Jonge, Marilyne Andersen And Rasmus Nørgaard On Affordability (New)
Affordability

Harwil de Jonge, Marilyne Andersen and Rasmus Nørgaard on Affordability

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ARCHITECTURE FOR WELL-BEING AND HEALTH

Daylight 2011 Jenniferveitch

THE PHYSIOLOGICAL AND PSYCHOLOGICAL EFFECTS OF WINDOWS, DAYLIGHT, AND VIEW AT HOME by Jennifer Veitch

Harwil De Jonge Resized

"Future Living" by Harwil de Jonge​ from Heijmans Real Estate​

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“Skylight Illumination Design of Primary Education Building Space” by Song Yehao

Cabin Spacey

"Future Living" by Simon Becker from Cabin One

Markus Pendlmayr On Communities
Pecha KuchaCommunities

Markus Pendlmayr on Communities | Pecha Kucha

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“Happy people in healthy architecture” by Lone Wiggers

Till Roenneberg On Pandemics (1)
Pandemics

Till Roenneberg on Pandemics

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5th VELUX Daylight Symposium 2013

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"The future is light" by Per Arnold Andersen