Using marginal emission factors to improve estimates of emission benefits from appliance efficiency upgrades

Article

Abstract

This work uses marginal emission factors to analyze avoided emissions from household energy efficiency improvements in air conditioning and lighting. This approach considers CO2, SO2, and NOx emissions avoided from the marginal power plant that would have been dispatched to meet demand, and compares the results to the more commonly used average emission factor approach as well as time-averaged marginal emission factors. Results from the lighting analysis indicate that, depending on location, a household can save $50–$430/year on electricity bills and avoid between 600 and 1300 kg of CO2/year by switching from a mix of compact fluorescent and incandescent to LED bulbs. For air conditioning, efficiency upgrades save between zero and $600/year in electricity cost and avoid zero to 300 kg of CO2/year. When comparing the marginal approach to the traditional average emission method, the average approach can underestimate CO2, SO2, and NOx emissions by 50% or overestimate by 100%, illustrating the relevance of the marginal emission approach to the study of efficiency-induced emission reductions.

Keywords

Emissions Marginal emission factor Lighting Air conditioning 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

12053_2018_9654_MOESM1_ESM.pdf (2.1 mb)
ESM 1 (PDF 2168 kb)

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Public PolicyRochester Institute of TechnologyRochesterUSA

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