The introduction of energy conservation and resource conservation measures has a positive impact on the environment and is one of the components of sustainable development at the macro level. In turn, at the micro level, such measures lead to a systematic decrease in the production costs of companies and thereby expand their economic and financial security. This article is devoted to the development of methodological tools for modeling the environmental and economic effect of added value created in the energy service market. For this, the peculiarities and components of the energy service contract have been identified. It has been established that one of the indicators of the conclusion of such a contract is the indicator of energy efficiency and environmental friendliness of measures in the structure of the added value of an energy service company. An analysis of existing 154 models of added value created in the energy service market is carried out. A model of economic value added is taken as the basis for modeling the ecological and economic effect of added value created in the energy service market. The rationale is that such value-added is a modification of the economic profit indicator, which measures the financial result of a company, considering not only accounting costs but also the opportunity costs of invested capital for energy efficiency and environmental measures.