GRENOBLE – Lighting is becoming the largest consumer of electricity in buildings, accounting for 25 or more of total costs. At the Leti’s Annual Review this week in Grenoble, France, Alexandre Lagrange at the CEA-Leti Optic and Photonic Department, demonstrated CEA-Leti’s engagement in research leading to smart lighting systems with adaptive and controllable properties.
Due to its high potential for CO² abatement, lighting is a fast moving business, and market growth expectations are high.
The white LED efficiency, said Lagrange in his keynote, is currently increasing sharply. Performances are there. But a plateau will be reached soon. There is not much to gain in terms of performances. And looking at the cost trajectory for LED luminaires, margins will drop dramatically. Today, LED cost is about 6$/klm but the cost reduction should be transferred to the customers so margins will be lower.
The white LED efficiency is growing sharplySource: EuroLED 2012