Energy rating systems: A case study on low-income houses

Document Type

Conference Proceeding

Publication Date

1-1-2012

Abstract

Louisiana is a hot-humid, rainy climate, a hurricane zone, and a termite hazard zone- not the best combination, but the reality which is augmented by soaring energy prices. These conditions present significant challenges to local homeowners, in particular low-income houses using about 25% of their annual income in energy bills. Low-income houses have a great potential for energy efficiency improvements because of the often poor condition of buildings in this sector. There are many rating systems currently in use to determine the energy efficiency of a house. The most commonly used are the House Energy Rating System (HERS) and House Energy Yardstick. The HERS index provides a measure of the relative energy use of the house based on its physical characteristics and a standardized set of operating characteristics; whereas the Yardstick characterizes the energy use of a house as it is used by its occupants, based on utility bills. This paper explores the usability of both rating systems in characterizing energy performance of eight low-income houses in Louisiana. Using both systems provided a valuable strategy to assess homeowner's energy usage habits and house's energy performance. Findings will contribute to a better understanding of the applicability of house's energy rating systems by homebuilders.

Publication Source (Journal or Book title)

62nd IIE Annual Conference and Expo 2012

First Page

3116

Last Page

3122

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