The purpose of the study is to develop a toolkit for assessing and overcoming barriers to the implementation of energy-saving projects. The barriers on the way to implementation of energy-saving projects at enterprises were grouped, and general approaches to evaluation of these barriers were determined. Modeling of economic barriers on the way to implementation of energy-saving projects at enterprises was fulfilled. The means of overcoming barriers to implementation of energy-saving projects were substantiated. The need for these studies is due to the need to assess and realize the potential of energy saving in the economies of many countries in Europe and the world. The existence of five main groups of barriers on the way to the implementation of energy-saving projects at enterprises was established. There is a reasonable need to take into consideration the sources of funding energy saving projects when assessing these barriers. It was found that according to the managers of enterprises, for all the studied industries of the Ukrainian economy, the most essential barrier to implementation of the projects of decreasing natural gas consumption is the insufficient level of their implementation. At the same time, the estimated effectiveness of state expenditures for subsidizing the researched enterprises is quite high. Therefore, it is appropriate to extend to cases of enterprises the Ukrainian practice of state subsidization of individuals receiving loans in order to implement projects to decrease the natural gas consumption. The importance of the obtained results is due to the possibility of their use both at the level of enterprises and in the practice of activity of state and municipal authorities in the development of energy-saving strategies and programs