Smart Access Control to Substations

• Lack of a standardized solution, with a wide variety of key types. • No reliable access logs. • Unnecessary travel for key handover and return—both during normal operations and emergencies—leading to increased operational costs and delays during critical moments. • The possibility of key duplication, transfer, or loss complicates control and may allow unauthorized entries. We have deployed an innovative access control system across 1,074 substations, with over 6,597 locks and 3,130 users, ensuring both identity verification and technical qualification of individuals accessing the facilities. The system provides full traceability of entries and exits, with 486,414 access events per year, significantly enhancing occupational risk prevention and eliminating the limitations of conventional access methods. Additional advantages of the system:

• Keyless operation: Mobile phones serve as access keys. • Digitalization: Real-time access data collection. • Battery-free: The system draws energy from mobile phones via NFC. • Maintenance-free: No need for battery replacement or wiring. • Easy integration with existing infrastructure: Compatible with existing substation door configurations.