## 3 Materials and Methods  
To validate the research hypotheses, in the first quarter of 2023, a survey was conducted on a sample of domestic electricity consumers in Romania. The tool used for data collection was the online questionnaire. More precisely, through the questionnaire, we aimed to analyze the behavior of domestic electricity consumers regarding the use of energy efficient smart solutions (EESS) such as smart light bulbs, smart sockets, etc. Before accessing the questionnaire, the consent of all respondents participating in the investigation was obtained regarding the participation in the survey, and they were also informed about the confidentiality of the answers. The development of the questionnaire was carried out in correlation with the elements included in the conceptual model; for this purpose, six scales were taken from the specialized literature:  
* Social influence (SI) [4; 5; 11; 13; 15; 16; 20; 43]. Taking into account the main purpose of the research and the specificities of the EESS technologies in the case of this scale (SI--Social Influence) we opted for the use of two dimensions of analysis: SI_FF (Social influence--Network of friends, colleagues and family), which included 5 items, and SI_PS (Social influence--Public space), measured by 7 items. These items sought to assess the extent to which respondents would adopt EESS if family, friends, or colleagues encouraged them to do so, specifically the extent to which they would use EESS if they were recommended to by others on social networks. * Hedonic motivation [4; 5; 15; 16; 18; 48], assessed through 6 specific items such as \"Using EESS is pleasant/very fun\", \"I like to be aware of the latest technological developments\", and \"I like to try new apps and new devices\". * Expected performance (PE) [5; 15; 16; 17; 43], measured by means of 6 items that aimed to evaluate the extent to which domestic electricity consumers in Romania consider that EESS are useful in everyday life and help to manage life more efficiently, as well as to what extent using EESS allows them to perform activities more efficiently, increase their chances of accomplishing important things, or make it easier for them to manage electronic equipment faster. * Perceived ease of use (PEOU) [4; 6; 11; 14; 16], evaluated through 7 specific items which sought to assess, for example, how easy it is for respondents to use or learn to use the EESS or how clear their interaction with the EESS is. * Perceived usefulness (PU) [6; 14; 19; 20; 43; 49], conceptualized through 6 items. By means of these items, we aimed to analyze, for example, the extent to which domestic electricity consumers in Romania appreciate EESS as useful in the efficient management of electricity consumption, or the extent to which the respondents believe that the use of EESS allows for the reduction of electricity costs or consumption energy. * Behavioral Intention to Use (BIOU) [4; 5; 11; 15; 16; 18; 20; 43], measured using 8 items, among which were \"I intend to continue using EESS in the future\", \"I plan to use EESS in the future\", or \"When it comes to EESS, I would recommend my relatives and friends to accept it\". The items of the above-mentioned scales are measured on a scale of 1-5 (strong agreement-strong disagreement), and are also adapted to the purposes of the research. In addition, a series of items considered to be more relevant in relation to the objectives pursued and the particularities of the technologies addressed have been added. In terms of demographic criteria, the facilitating conditions identified in the UTAUT models were mainly taken into account [15], and UTAUT2 [16] materialized in the factors of gender, level of education, occupation, and level of income. Furthermore, other analysis criteria attributed to the facilitation conditions were introduced in the model, each having a specific role in relation to the specificities of the EESS technologies and the objectives of this research.