Power utilities

Power grids are becoming more distributed, automated and dependent on real-time data as utilities modernize substations and integrate renewable energy and distributed energy resources. Technologies such as IEC 61850 Generic Object-Oriented Substation Event (GOOSE) messaging enable rapid communication between intelligent electronic devices (IEDs), while precise synchronization provides the common time reference needed across protection, control and monitoring systems. From synchrophasor measurements and fault localization to event recording and substation automation, accurate timing helps utilities coordinate grid operations, analyze disturbances and respond quickly when faults occur. As these systems become more connected, utilities also need timing architectures that remain reliable when GNSS is disrupted or unavailable.

Modern utility networks require synchronization across control centers, transmission networks and substations while supporting both packet-based and legacy timing interfaces. The edgeSync+™ Series OSA 5422 provides high-accuracy PTP synchronization for core and large substation environments, while the edgeSync™ Series OSA 5410XG extends precise timing into substation infrastructure. The accessSync™ OSA 5405-P SyncGrid™ supports compact edge deployments, and coreSync™ Series OSA 3350 optical pumping cesium clocks provide a stable local reference for extended holdover and reduced GNSS dependence. Together, these solutions support PTP Power Profile, NTP and legacy interfaces across utility timing networks.

As utilities integrate renewable generation, distributed energy resources and more intelligent automation, precise synchronization becomes critical to grid visibility, protection and control. Resilient timing architectures can combine GNSS with independent references, network-based PTP backup and alternative PNT sources to reduce reliance on any single source of time. Mosaic Sync Director provides centralized visibility and control of time, phase and frequency distribution across the synchronization network. By combining precise timing distribution, source diversity, extended holdover and network-wide monitoring, utilities can build synchronization infrastructure that supports reliable operations as power systems become more distributed and software-driven.