Brussels, February 8 th Future European activities in Energy Efficient Lighting of Buildings : Proposals for efficient programmes and coordination. Marc Fontoynont Ecole Nationale des Travaux Publics de l’Etat - Lyon, FRANCE

Preliminary observations : Brussels, February 8 th In artificial lighting, European industry leads the world regarding the performance of the luminaire industry and the control technology. In countries such as Germany, Netherland, or Swizzerland the standards for efficiency are quite high, but they are progressing all around Europe. For indoor lighting, T5 fluorescent with electronic ballasts represent the best light source in terms of efficiency, with no real potential of improvement for the next 20 years.

Preliminary observations : (continued) Brussels, February 8 th Good news for energy conservation: Halogen spotlights will me replaced in the next 5 years by LED sources, coming from the electronic and computer industry. Danger : Europe will probably loose its leadership to Asian companies but Philips, Siemens invest strongly on these technologies. Major potential for energy savings will come from: 1) generalization of “best practice”: high quality, low power densities 2) turning lights off whenever it possible (in relation to occupant needs, presence, and, above all, daylighting)

Type of activity needed: 1) R&D Efficient and powerful task lighting using T5 technology: this should increase lighting quality, offer more flexibility, and reduce power densities in offices from 15W/m 2 to below 10W/m 2 or even below 8W/m 2. Highly insulative glass, to allow use of larger glazed areas and more daylighting. Optimized solar shading techniques and their controls (between glass panes?) Deep daylighting techniques (Passive light guides, façade components) Brussels, February 8 th

Type of activity needed: 2) Dissemination … Examples of very efficient and very sustainable work place in offices. Below 70 W / person for electrical lighting power incomparison with 200W/m2 current. Highly controllable, default controls for energy savings. Industrialize the solution with office furniture manufacturer. Propose demonstration buildings Document the results Involve major clients (banks, public organization,etc.) Brussels, February 8 th

Type of partnership needed: Academic: performance targets, monitoring procedures, laboratory tests, occupant satisfaction, sustainability assessment Industrial: supply of products, increase performance, integration reduction of costs Governmental: health organizations, work legislation Clients: investors in the field of buildings (office / industrial, banks, governmental organizations) Brussels, February 8 th

Type of project: The efficient office space of the XXIth century: sustainability (energy + material), pleasantness (occupants), low cost (market integration). Facade systems using as much natural radiation, light and air and leading to less discomfort for occupants. Roof systems using as much natural radiation, light and air Building management systems using internet, and climatic ressources (satellites and ground stations),to optimize energy efficiency of systems. Coupling of LED and PV Brussels, February 8 th

Targets in Lighting: 6W/m2 office lighting, less than 6KWh/m2.year average Workspace below 50 W New LEDs with efficacy higher than 50 lm/W Replacement of all compact fluorescent and halogen by LED (no moremercury) Use of daylight for ambient lighting: up to 70 % of needs (map of Europe) Brussels, February 8 th

Workshops / Daylighting Buildings of the XXIth century Roskilde (Denmark) April 10 Organization: IEA 31 / SBI Visual Environment Symposium, London Royal Society, April Organization Arup Solar shading and intelligent facades conference April 30, Watford Organization:BRE Brussels, February 8 th