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Title: Performance Results for Massachusetts and Rhode Island Deep Energy Retrofit Pilot Community

Between December, 2009 and December, 2012 42 deep energy retrofit (DER) projects were completed through a DER pilot program sponsored by National Grid and conducted in Massachusetts and Rhode Island. 37 of these projects were comprehensive retrofits while 5 were partial DERs, meaning that high performance retrofit was implemented for a single major enclosure component or a limited number of major enclosure components. The 42 DER projects represent 60 units of housing. The comprehensive projects all implemented a consistent 'package' of measures in terms of the performance targeted for major building components. Projects exhibited some variations in the approach to implementing the retrofit package. Pre- and post-retrofit air leakage measurements were performed for each of the projects. Each project also reported information about project costs including identification of energy-related costs. Post-retrofit energy-use data was obtained for 29 of the DER projects. Post-retrofit energy use was analyzed based on the net energy used by the DER project regardless of whether the energy was generated on site or delivered to the site. Homeowner surveys were returned by 12 of the pilot participants. Based on the community experience, this DER package is expected to result in yearly source energy use near 110 MMBtu/yearmore » or approximately 40% below the Northeast regional average. Larger to medium sized homes that successful implement these retrofits can be expected to achieve source EUI that is comparable to Passive House targets for new construction. The community of DER projects show post-retrofit airtightness below 1.5 ACH50 to be eminently achievable.« less
Authors:
;
Publication Date:
OSTI Identifier:
1126850
Report Number(s):
DOE/GO-102014-4371
KNDJ-0-40337-03
DOE Contract Number:
AC36-08GO28308
Resource Type:
Technical Report
Resource Relation:
Related Information: Work performed by Building Science Corporation, Somerville, Massachusetts
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Building Technologies Office
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 42 ENGINEERING RESIDENTIAL; RESIDENTIAL BUILDINGS; BSC; BUILDING AMERICA; DER; RETROFIT; HIGH PERFORMANCE RETROFIT; ENERGY USE; MEASURED PERFORMANCE; AIRTIGHTNESS; POST-RETROFIT; COLD CLIMATE RETROFIT; DEEP ENERGY RETROFIT; NATIONAL GRID; PILOT; DER PILOT; DER PILOT EVALUATION; Buildings