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This manuscript is devoted to the biofuels based on microalgae and their efficiency assessment. Methods, that were used: risk-analysis and SWOT-analysis. Also here are the results of conducted risk-analysis and SWOT-analysis of production and use of the biofuels, that contain a microalgae components in their composition. Based on the results, can say about the efficiency of these fuels. Defined indicators are calculated for the introduction and development of this type of biofuels in the countries of Eastern Europe.