Virtual Reality-Based Digitalisation Framework for Facility Management in Hydraulic Infrastructures Hydropower facilities involve complex systems that require precise coordination between mechanical, electrical, and control components. The management and maintenance of such systems are often constrained by physical accessibility, safety risks, and limited visualization of operational interdependencies. These challenges highlight the need for innovative tools that enable efficient supervision, training, and performance monitoring. This study investigates the integration of Virtual Reality (VR) as an interactive and immersive approach to hydropower facility management and training. A virtual hydropower plant was developed using the Unity engine to simulate real-time operational scenarios. The system incorporates two distinct user modes Technician and Managerial Mode, each representing a specific functional domain within a hydropower facility.