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Posts Tagged ‘lighting’

City of Sydney blazing the way with LED lighting.

Posted in Models, Movements by Jessica Bird on April 4th, 2012

Photo from City of Sydney

From an article on Greenpages by The Climate Group

Sydney has become the first major city in Australia – and one of the first in the world – to embrace LED lighting, following council approval for General Electric (GE) and UGL Limited to fit LEDs to the majority of the City’s outdoor lights as part of an AUS $7 million three-year project.

The new lights promise to cut the City’s lighting-related electricity bills and carbon emissions by more than 50%, while bathing city streets in a whiter, brighter light. The first lights were installed last weekend on George Street in front of Sydney Town Hall, a central location which was initiated by The Climate Group’s LightSavers program. In total, 6,500 lights will be fitted with LED technology. A rollout of this size is unprecedented in Australia and will be closely watched by other councils. If successful, it may start a domino effect and see LEDs spread to city streets across Australia.

Sydney Lord Mayor Clover Moore supports the City’s pioneering rollout of the LED lights. She said: “Replacing 6,450 conventional lights will save nearly $800,000 a year in electricity bills and maintenance costs. Sydney will be the first city in Australia to install the new LED street and park lights across its entire city centre, and joins other major cities such as Berlin, Barcelona, Los Angeles and San Francisco.”

Independent polls conducted in the trial areas show that Sydney residents agree with the City Council’s move: 90% supported the rollout of the lights on Sydney’s streets.


Sydney’s LED transformation follows a rigorous testing phase conducted as a contributor to The Climate Group’s Global LED Trial. The Global Trial, undertaken in more than 10 major world cities, including Hong Kong, London, New York and Toronto, has put almost 30 different outdoor LED lighting products to the test. The City’s successful trial results also reflect those of the wider Global Trial: LED products are reliable, use 50-70% less energy and produce fewer carbon emissions – and have outshone traditional street lighting with more attractive light.


Read the full article here

End-of-life Design: Lighting Sustainability

Posted in Research by Kate Archdeacon on March 19th, 2010

Source: IOP Science via  Environmental Research Web

Reducing environmental burdens of solid-state lighting through end-of-life design, C T Hendrickson, D H Matthews, M Ashe, P Jaramillo and F C McMichael; Green Design Institute, Carnegie Mellon University, USA


With 20% of US electricity used for lighting, energy efficient solid-state lighting technology could have significant benefits. While energy efficiency in use is important, the life cycle cost, energy and environmental impacts of light-emitting diode (LED) solid-state lighting could be reduced by reusing, remanufacturing or recycling components of the end products. Design decisions at this time for the nascent technology can reduce material and manufacturing burdens by considering the ease of disassembly, potential for remanufacturing, and recovery of parts and materials for reuse and recycling. We use teardowns of three commercial solid-state lighting products designed to fit in conventional Edison light bulb sockets to analyze potential end-of-life reuse strategies for solid-state lighting and recommend strategies for the industry. Current lamp designs would benefit from standardization of part connections to facilitate disassembly and remanufacturing of components, and fewer material types in structural pieces to maximize homogeneous materials recovery. The lighting industry should also start now to develop an effective product take-back system for collecting future end-of-life products.


1. Introduction

2. Current state of design for LED SSL products

3. Product life cycles and green design principles

4. Green design of LED lamps and luminaires

4.1. Design for reuse and servicing

4.2. Design for disassembly

4.3. Design for product and component remanufacturing

4.4. Design for materials recovery

4.5. Establishing product take-back

5. Conclusions