Residential Solar Energy Use in Michigan.

Abstract

During the past decade, solar energy has received considerable attention as an alternative means of reducing conventional fuel consumption. For residential use, this has meant the installation of various types of solar systems for home and water heating and , to a lesser degree, for electrical power and cooling. The purpose of this study represents an analysis of solar energy as an innovation and the perception of that innovation by recent system adopters. Specific objectives include an analysis of the solar energy adoption process in terms of: (1) the availability of innovation-evaluation information, (2) the perceived attributes of solar energy systems, and (3) the spatial distribution patterns of adopting homeowners. This study was conducted from 331 responses to a questionnaire of single-family homeowners in Michigan who had installed a solar energy systems during the four-year period from 1980-1983. The five subject solar energy systems were thermosyphon air panel (TAP), solar gain (direct and indirect passive systems), domestic hot water, space heat, and greenhouse. Results of the study indicate that the primary solar system use was for home heating with the thermosyphon air panel (TAP) being the single most preferred type. The tax credit program was a necessary ingredient in minimizing the financial risk for most system installers. The high concern for system st and ards, certifications, and guarantees suggest that homeowners feel improvements should be made on efficiency and performance levels. There is a continuing need for education about the latest developments of solar technology and the benefits of adopting solar energy systems. This need extends from those in the homebuilding industry to the general public. Public agencies and utilities are a key element in serving as a link between developmental research, the homebuilding industry, and the general public.