Grand Junction Retrofit Prog Report

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1 , PRELIMINARY REPORT AUGUST 1992 COLORADO OFFICE OF WATER CONSERVATION GRAND JUNCTION RESIDENTIAL RETROFIT PROJECT PROJECT SUMMARY The Grand Junction Residential Retrofit Pilot Project began in April 1991. The Colorado Office of Water Conservation is managing the project and receives technical advice, project implementation and other assistance from sources including Grand Junction Utilities Department, Office of Energy Conservation, Denver Water Department and area consultants. Retrofit projects are not new. A few aspects of this project, however, make it unique. The project was designed to include monitoring and evaluation of both water and energy consumption. The project also set out to determine water savings potential and customer satisfaction of more sophisticated retrofit devices. The devices used in the project include the Future Flush. a dual-flush (two option) device, and the ShowerSpa showerhead. Approximately 100 single family homeowners agreed to participate in an 18 month project to help city officials determine water saving potentials from plumbing retrofit devices. Homeowners were then provided with a 2.0 gallon per minute flow "ShowerSpa" showerhead, a faucet aerator and a "Future Flush" toilet device all bathroom fixtures and asked to install them. Water and energy consumption is collected monthly for evaluation. A survey of participating homeowners was conducted and is also part of the project. An attempt has been made to ensure this pilot project emulates "real life" water use versus water use in a controlled laboratory setting. This preliminary report has been prepared after one year of water and energy data collection. A.variety of project details have not been addressed in this report but are anticipated to be included in a final document. Consumption data will be collected through October 1992.Readers with interest in further details are encouraged to contact the Office of Water Conservation. PROJECT GOAL The overall goal of the Grand Junction Residential Retrofit Demonstration Project is to develop information regarding the economic impact of a retrofit program and the water utility's return on program investment. The project was designed to accomplish this goal through the following four objectives: 1. to determine changes in water and energy usage from a residential plumbing fixture retrofit;