Project Report


Blower Door Guided Weatherization Test Project
Final Report

Prepared for: Southern California Edison, Customer Assistance Programs
Report Dated: December 19, 1994
By: John Proctor, P.E.


Abstract

Beginning in early 1992 Southern California Edison (Edison) committed to a study to determine the cost effectiveness of Blower Door Guided Weatherization (BGW) for their Low Income Rate Assistance (LIRA) customers living in all-electric houses.

In Edison's 1991 GRC Decision, the CPUC would not authorize a program utilizing blower door technology to diagnose air leakage and guide repair of excessive air leakage in all-electric homes occupied by LIRA customers. This decision was based on the fact that no evidence was provided during the rate hearings that showed these techniques were effective in weatherizing LIRA customer homes in Southern California.

Edison consequently retained the services of Proctor Engineering Group (PEG) to perform research and analysis of the cost effectiveness of BGW. As a result, Edison could expect to make informed program decisions about BGW based on previously completed research and pilot project test results in their service territory.

Proctor Engineering Group was enlisted to perform several tasks in the course of examining the cost effectiveness of BGW for Edison during the study. These tasks included:

  1. A comprehensive literature search for previous studies examining cost effectiveness of low income customer Blower Door Guided Weatherization programs
  2. The Southern California Blower Door Breakpoint Study
  3. The Blower Door Guided Weatherization Field Test

The primary purpose of the comprehensive literature search was to help define and clarify the primary research questions and to summarize the results of previous Blower Door Guided Weatherization studies.

The Southern California Blower Door Breakpoint Study was conducted to determine the LIRA customer sample selection that the field study would target. Customers that represented a significant portion of the all-electric LIRA customer housing stock in Edison's territory were selected through this study for targeting.

The final phase of the project was the Blower Door Guided Weatherization Field Test. The field test was designed to include pre-/post- BGW retrofit measurement and evaluation of heating and cooling usage through long term monitoring. This report details the results of the field test.


Also see Program Design

Bound copies of this entire report are available for $25 each.
For details about obtaining a copy see How To Order Project Reports


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