Abstract: “Although many studies conducted hitherto concentrated mostly on how demonstration projects affect technological proofs, there is a lacuna to address their effects on innovation diffusion in terms of public acceptance who observe and/or initially experience those. Taking Eko-Viikki residential area with some solar integrated buildings in Helsinki as a case study this paper addresses whether demonstrations can have any impact among people to adopt clean energy technologies such as solar energy. What the people living in some of those solar integrated buildings feel about the technology; and how such demonstrations and initial adoption by the residents of those buildings formed the emulation tendency among people are matters of concentration in this study. Due to unfavourable weather condition solar energy has long been considered nonfeasible by the common Finnish citizens. To meet the huge demand of energy for space heating and electricity, traditional power supply has been playing the m”

Keywords: Solar energy, demonstration effects, social acceptance, emulation, diffusion of innovation.