An Engineering-Economic Analysis of White Light-Emitting Diodes for General Illumination for the U.S. Residential and Commercial Sectors

February 15, 2008 - 12:00pm

Because lighting constitutes more than 20% of total US electricity consumption, and many current lighting technologies are highly inefficient, improved technologies for lighting hold great potential for energy savings and for reducing associated greenhouse gas emissions. Solid-state lighting is a technology that shows great promise as a source of efficient, affordable, color-balanced white light in the near future. Indeed, under a pure engineering-economic analysis, solid-state lighting already performs better than incandescent bulbs and is expected to surpass the most efficient fluorescent bulbs by the end of this decade. However, a large literature indicates that households do not make their decisions using pure engineering-economic evaluations. We compare the compare the cost, electricity consumption, carbon emissions and cost-effectiveness of the current lighting technologies, accounting for the expected evolution of the main characteristics of solid-state lighting between 2008 and 2015. We then simulate the lighting electricity consumption and implicit greenhouse gases emissions for the U.S. residential and commercial sectors from 2008 to 2015 under different policy scenarios: voluntary solid state lighting adoption, implementation of lighting standards in new construction and rebate programs. We also provide a measure of cost-effectiveness for solid-state lighting in the context of climate change policies. For more information about this seminar, please contact: Chris Marnay(510) 486-7028

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