This master's thesis presents the analysis of the watercourses of the Tržiška Bistrica sub-basin, carried out to determine their suitability for hydropower water use and bearing in mind such objectives as the achievement of good water status and nature conservation. The analysis of watercourse sections is designed to ensure the coordination of national and European objectives with the objectives of achieving good water status and nature conservation (European Commission, 2003). The two main aspects of the hydropower water use suitability analysis are the aspects of attractiveness and environmental vulnerability. Account must be taken of the criteria determining the suitability for inclusion on the one hand and of nature conservation on the other hand. The results of this thesis can provide an appropriate basis for balanced strategic planning at local community level as well as at national level. The hydropower suitability analysis area covers the area of the Tržiška Bistrica river basin and includes watercourses with contributory areas larger than 10 km2. The objective is therefore to identify the most suitable locations for positioning hydropower systems along the three main watercourses that make up the Tržiška Bistrica sub-basin. Suitable locations have high hydropower potential and relatively low ecological and landscape value and, though appropriate use of hydropower, would not have a significant negative ecological impact.