The present study examines the impact of technology diffusion on energy consumption and efficiency in small and medium enterprises (SMEs) in Montenegro. The focus of this study is a project proposal submitted by a specific SME. The project entails the procurement of the machine for heating and waste collection, as well as the implementation of a digital key for purpose of productivity and energy monitoring. The objective of the project is threefold: firstly, to reduce electricity consumption; secondly, to increase revenue; and thirdly, to promote sustainable practices. This is an empirical study, and as such the results obtained from the real-life consumption of a company can be representative. It was demonstrated that undertaking of project activities would result in the company accruing benefits in both the short and long term. It has been indicated that a reduction in both energy consumption and CO₂ emissions will be observed. However, it is anticipated that the project activities will, over time, lead to the adoption of even more sustainable practices within the company. The paper provides a comprehensive exposition of the demonstration of the Rogers model (TOE and IDP framework) using empirical evidence. Project of this nature are of great benefit to SMEs in Montenegro and the wider region. The provision of financial assistance is but one of the functions of this calls, another is the raising of awareness of various issues. The concept of energy efficiency should not be perceived as disadvantageous, rather, it should be regarded as a concept that is universally accessible and demonstrably manageable in a variety of ways.