Ukraine’s commitments under the international framework agreements to reduce CO ₂ emissions and the Global Climate Change Initiative provide the basis for the implementation of bioeconomy mechanisms in the country’s Energy Development Strategy until 2035. One of the goals of this strategy is to reduce the consumption of fossil fuels and switch to alternative fuels. The agriculture of Ukraine is assigned the leading role in ensuring the replacement of fossil fuels with biomass of plant origin. The bioenergy potential of the agro-industrial sector of the economy requires extensive research in order to determine and integrate it into the country’s energy sector. The essential characteristics of energy efficiency in the context of the cluster model of organizing the activities of enterprises for the production of biofuel as stable interactions of geographically concentrated economic entities are investigated in this article. Peculiarities of introduction of bioenergy clusters as stable interactions of geographically concentrated business entities (enterprises, suppliers and organizations, including scientific institutions, etc.) have been determined according to a pre-defined and agreed development strategy for all participants without exception at the stage of formation of which the competitive environment is supported taking into account the energy, ecological and socio-economic parameters of the sustainable development of territories. A model of a territorial bioenergy cluster for the production of biofuels from crops and waste was formed and the advantages of creating bioenergy clusters were analyzed. Furthermore, a matrix of a PEST analysis of the formation of bioenergy clusters in Ukraine was formed.

The article examines the environmental performance of a diesel generator that runs on a biofuel mixture. Biofuels are considered to be more environmentally friendly than traditional petroleum products and have become popular alternatives in the field of electricity production. To reduce dependence on petroleum fuels and decrease harmful exhaust-gas emissions from diesel generators, it is suggested to use biodiesel fuel and its mixture with diesel fuel. Various environmental indicators were measured and analyzed in this study, including the emissions of harmful substances, carbon dioxide, nitrogen oxides and particulates. By using biofuels, pollutant emissions are expected to be reduced because biofuels are made from renewable sources such as vegetable oils or biomass. The results of the study show that the use of a biofuel mixture in a diesel generator leads to a significant reduction in the emission of harmful substances compared to the use of traditional petroleum products. A reduction in the emissions of carbon dioxide and nitrogen oxides was found, which contributes to a reduction of the impact on climate change and air pollution. In addition, a decrease in particle emissions was noted, which contributes to the improvement of air quality and people’s health. The goal was achieved by researching the impact of a mixture of diesel and biodiesel fuel on the technical, economic and environmental indicators of an autonomous diesel generator. The regulation of the composition of the fuel mixture ensured the preservation of the power of the generator in all its modes of operation, while reducing the cost of purchasing fuel by 10% and reducing the smokiness of exhaust gas by up to 57%, depending on the mode of operation of the diesel engine.