This research identifies the factors contributing to the success of the Sablan geothermal power plant. For this purpose, the criteria are screened using the WASPAS method and then entered into a fuzzy cognitive map (FCM) to estimate cause-and-effect relationships. In the quantitative part, the model's reliability is validated through a questionnaire and feedback from experts. Another questionnaire is then designed using indicators identified during the super-composition stage. The results indicate that 'resource extraction costs' received the highest score among all examined criteria. The results also demonstrate that the proposed technique addresses the limitations of one-way cause-and-effect relationships in the balanced scorecard. Additionally, three types of relationships including upward, two-way and downward relationships are identified in the FCM. Finally, it is concluded that the strategic structure of the Sabalan power plant requires a daily commitment to excellence in operational processes and product development on limited platforms to ensure the plant's effectiveness.