National Grid Deep Energy Retrofit Pilot

Research output: NRELSubcontract Report

Abstract

Through discussion of five case studies (test homes), this project evaluates strategies to elevate the performance of existing homes to a level commensurate with best-in-class implementation of high-performance new construction homes. The test homes featured in this research activity participated in Deep Energy Retrofit (DER) Pilot Program sponsored by the electric and gas utility National Gridin Massachusetts and Rhode Island. Building enclosure retrofit strategies are evaluated for impact on durability and indoor air quality in addition to energy performance. Evaluation of strategies is structured around the critical control functions of water, airflow, vapor flow, and thermal control. The aim of the research project is to develop guidance that could serve as a foundation for wideradoption of high performance, 'deep' retrofit work. The project will identify risk factors endemic to advanced retrofit in the context of the general building type, configuration and vintage encountered in the National Grid DER Pilot. Results for the test homes are based on observation and performance testing of recently completed projects. Additional observation would be needed to fully gaugelong-term energy performance, durability, and occupant comfort.
Original languageAmerican English
Number of pages168
StatePublished - 2012

Bibliographical note

Work performed by Building Science Corporation, Somerville, Massachusetts

NREL Publication Number

  • NREL/SR-5500-53684

Other Report Number

  • DOE/GO-102012-3488

Keywords

  • comprehensive retrofit
  • deep energy enclosure retrofits (DER)
  • DER
  • national grid
  • national grid deep energy retrofit pilot
  • pilot
  • retrofit
  • retrofit measures

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