Considering optimal lifetimes for LED lamps: A mixed approach and policy implications
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A4 Artikkeli konferenssijulkaisussa
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Authors
Date
2017-11
Major/Subject
Mcode
Degree programme
Language
en
Pages
5
353-357
353-357
Series
Product Lifetimes and The Environment Conference Proceedings, PLATE 2017, Volume 9, Research in Design Series
Abstract
Ecodesign policy for energy-using products so far has tended to focus on the energy efficiency requirements, but there is increasing interest in durability requirements as well. This exploratory study analyses whether and when long lifetimes are preferable when considering the trade-offs between durability and other important parameters such as costs and environmental impacts, examining the case of LED lamps. This is an interesting product group to examine because of the improving lumen efficiency of the technology as well as the increasing emphasis on lifetimes by both producers and policymakers. This research integrates both economic and environmental approaches to examine optimal lifetimes in the case of LED lamps. The first part of the research utilised an optimised least lifecycle cost (LCC) model of LED household lamps for sale in a Swedish online market, finding that optimal lifetimes were in the range of 25000–30000 hours for these lamps. However, this modelling did not consider dynamic factors such as changing prices and efficiencies. This study took the case of 800 lumen lamps to consider these factors, utilising both LCC scenarios, varying lifetime, purchase prices, energy cost and efficiency as well as LCA scenarios, varying electricity mix and lifetimes. The mixed approach demonstrates that different conclusions can be reached depending on the approach and the assumptions used. The merits and possible future improvements of these approaches for approximating optimal lifetimes of LED lamps are discussed based on preliminary findings. Lastly, the implications of the findings for further development of durability requirements and other policies are briefly discussed.Description
Keywords
Durability, Lifetime, LEDs, Life cycle assessment, Life cycle cost
Other note
Citation
Richter, J L, Dalhammar, C & Tähkämö, L 2017, Considering optimal lifetimes for LED lamps: A mixed approach and policy implications . in C A Bakker & R Mugge (eds), Product Lifetimes and The Environment Conference Proceedings, PLATE 2017 : Volume 9: Product Lifetimes And The Environment . vol. 9, Research in Design Series, IOS Press, pp. 353-357, Product Lifetimes and the Environment, Delft, Netherlands, 08/11/2017 . < http://10.3233/978-1-61499-820-4-353 >