This thesis examines in detail the functions of hydroelectric power plants, their working principle, benefits and potential challenges, as well as their importance in the ecosystem and human lives. A special focus is placed on the Jaruga hydroelectric power plant, one of the oldest in Europe and the second in the world, where all aspects of its functioning are described, the processes of rehabilitation of visible and hidden parts and aesthetic restoration, considering its position at the foot of the group of waterfalls of the Krka River, which are often shown on postcards of the national park. Also, the work includes a plan for the revitalization of the watercourse of the Krka River around the Jaruga hydroelectric plant with the aim of developing a tourist, museum and cultural center. This center aims not only to educate visitors about hydropower, electricity and its distribution, but also to promote the historical values of the area and connect the beautiful environment, flora and fauna with the growing needs of the modern community. Through this research, the importance of sustainable management of hydropower plants as a key source of renewable energy, while respecting natural resources and environmental standards, is emphasized. The goal is to ensure that hydropower plants like Jaruga not only contribute to energy independence, but also to the preservation of the natural environment and cultural heritage for future generations.