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Measured results of energy conservation retrofits in residential buildings

Conference · · ASHRAE Trans.; (United States)
OSTI ID:6971021
This study summarizes measured data on energy savings from conservation retrofits in existing residential buildings. Retrofits to the building shell, principally insulation of exterior surfaces, window treatments, and infiltration-reduction measures, are the most popular, although data on various heating system retrofits are now available. The average retrofit investment per unit in multifamily buildings is approximately $700, far lower than the average of $1350 spent in single-family residences. Savings achieved are typically 20% to 30% of pre-retrofit space heating energy use, although large variations are observed both in energy savings and in costs per unit of energy saved. Particularly cost-effective retrofit strategies are identified based on measured energy use data. Predicted versus actual savings are also compared for groups of homes in 24 retrofit projects.
Research Organization:
Lawrence Berkeley Lab., Univ. of California, Berkeley, CA
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6971021
Report Number(s):
CONF-860106-
Conference Information:
Journal Name: ASHRAE Trans.; (United States) Journal Volume: 92:1A
Country of Publication:
United States
Language:
English