Our paper presents the system for multi-criteria evaluation of energy crops for biogas production. First, a deterministic simulation system consisting of deterministic production simulation models was built. Simulation model results were further evaluated using a qualitative multi-attribute modeling methodology DEX (supported by the software tool DEX-i). Analysis showed that by using the current model the most relevant alternative crop for biogas production is maize. Maize results in the best DEX-i multicriteria evaluation appropriate. The best alternatives for maize are sorghum, sunflower, and sugar beet, with multicriteria evaluation being less appropriate.