Replacement policy of residential lighting optimized for cost, energy, and greenhouse gas emissions

Video thumbnail (Frame 0) Video thumbnail (Frame 76) Video thumbnail (Frame 213) Video thumbnail (Frame 499) Video thumbnail (Frame 655) Video thumbnail (Frame 933) Video thumbnail (Frame 1082) Video thumbnail (Frame 1368) Video thumbnail (Frame 1518) Video thumbnail (Frame 1784) Video thumbnail (Frame 1921) Video thumbnail (Frame 2036) Video thumbnail (Frame 2212) Video thumbnail (Frame 2356) Video thumbnail (Frame 2669) Video thumbnail (Frame 2889) Video thumbnail (Frame 2970) Video thumbnail (Frame 3364) Video thumbnail (Frame 3570) Video thumbnail (Frame 3906) Video thumbnail (Frame 4170) Video thumbnail (Frame 4317) Video thumbnail (Frame 4628) Video thumbnail (Frame 4750) Video thumbnail (Frame 4845) Video thumbnail (Frame 4982) Video thumbnail (Frame 5240) Video thumbnail (Frame 5722)
Video in TIB AV-Portal: Replacement policy of residential lighting optimized for cost, energy, and greenhouse gas emissions

Formal Metadata

Replacement policy of residential lighting optimized for cost, energy, and greenhouse gas emissions
Title of Series
CC Attribution 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Release Date

Content Metadata

Subject Area
Accounting for 10% of the electricity consumption in the US, artificial lighting represents one of the easiest ways to cut household energy bills and greenhouse gas (GHG) emissions by upgrading to energy-efficient technologies such as compact fluorescent lamps (CFL) and light emitting diodes (LED). However, given the high initial cost and rapidly improving trajectory of solid-state lighting today, estimating the right time to switch over to LEDs from a cost, primary energy, and GHG emissions perspective is not a straightforward problem. This is an optimal replacement problem that depends on many determinants, including how often the lamp is used, the state of the initial lamp, and the trajectories of lighting technology and of electricity generation. In this paper, multiple replacement scenarios of a 60 watt-equivalent A19 lamp are analyzed and for each scenario, a few replacement policies are recommended. For example, at an average use of 3 hr day−1 (US average), it may be optimal both economically and energetically to delay the adoption of LEDs until 2020 with the use of CFLs, whereas purchasing LEDs today may be optimal in terms of GHG emissions. In contrast, incandescent and halogen lamps should be replaced immediately. Based on expected LED improvement, upgrading LED lamps before the end of their rated lifetime may provide cost and environmental savings over time by taking advantage of the higher energy efficiency of newer models.

Related Material

Greenhouse effect Video Electric power distribution Emission nebula
Greenhouse effect Mechanical watch Schubvektorsteuerung Hour Emission nebula Electricity
Greenhouse gas Cut (gems) Schubvektorsteuerung Year
Finger protocol Theodolite Electricity Year Light
Light-emitting diode Theodolite Arc lamp
Incandescent light bulb Arc lamp Model building Light Specific weight Model building
Typesetting Safety lamp Model building Model building
Light-emitting diode Analog signal Incandescence Incandescence Safety lamp Emission nebula Bow (ship) Safety lamp
Light-emitting diode Cell (biology) Safety lamp Emissionsvermögen Emission nebula Year Suitcase
Light-emitting diode Musical development Lace Emissionsvermögen Emission nebula Arc lamp Membrane potential Teilchenrapidität Faraday cage Sundial Light
Geocentric model Emissionsvermögen Emission nebula Electricity Electricity Suitcase Scouting
Intensity (physics) Emission nebula
Light-emitting diode Energiesparmodus Analog signal Incandescence Incandescence Safety lamp Emissionsvermögen Emission nebula Bow (ship) Safety lamp Model building
Spannvorrichtung Mechanical watch Commercial vehicle Finger protocol Membrane potential Linear motor Model building
and the U.S. letting accounted for 200 80 billion kilowatt hours of electricity use a roughly 10 per cent of the total consumption in 2015 letting grating easy
way to cut energy use and therefore energy cost and greenhouse gas emissions
upgrading the letting infrastructure of the U.S. dualities in 2015 would have cut the annual energy use by half by up to 49 billion dollars in lectures the costs however the high cost of
solid-state lighting has slowed the transition
many studies have used a simple payback and other life cycle counting methods to demonstrate the cost competitiveness and environmental benefits of only these despite the high initial cost however since
these studies do not consider the timing of replacement they cannot determine whether a
greater savings can be achieved from replacing
an energy inefficient lamp today or from waiting for the LED lamp to achieve a lower cost or a high efficacy the goal of
this study is therefore to determine the app more transition time to allergies and
provide specific replacement strategies for residential lighting we developed an
optimal placement model for a 60-watt equivalent light bulb a common U.S. household lamp using an approach that combines
lexical accounting methods with optimization techniques this model
considers various scenarios in conditions including what type of land is currently in use how the land technologies change and how the electric grid to carbonizes
the study finds that all incandescence and halogen lamps should be replaced immediately with CFL's allergies no placement is advice for existing
CFL's analogies elegy
adoption is optimal today in terms of emissions however from an energy and cost perspective LED should be adopted later with CFO used today because of improving efficacy and cost which will provide greater lifecycle savings lamps
with high usage rates should be replaced 1st and frequently because the benefits the most from efficacy gain replacing
the lamp before it burns out seems wasteful but this study shows potential savings in cost energy and emissions by replacing the love earlier than its rated lifetime this is because of the
rapid improvement of efficacy and cost suggesting that efficacy improvements should be prioritized before durability in ongoing lighting research and development the optimal placement
policy differs depending on the electric grid for example allergies adopted
earlier and replaced more frequently in DC California and Hawaii where they electric rates are high whereas from an emissions perspective elegy adoption is less urgent in California where the
carbon intensity of the grid is low
inform buyers can use strategic replacement timing to maximize the
economic energy and emissions benefits of letting replacement in
general replace all incandescence and halogen lamps immediately and hold on to existing CFL's analogies for cost and energy savings the model developed in
this study informed replacement strategies and underlining sectors including linear fixtures high-pay and low-pay luminaries in commercial and industrial indoor spaces which together represent over 60 per cent of the potential markets for allergies