Zaphiro Technologies

Zaphiro is a leading Swiss deep tech company in Smart Grid solutions using Phasor Measurement Units (PMUs). They help energy players optimize power grid monitoring and automation through software solutions integrated with proprietary or third-party hardware. Based on the PhD-thesis of the three founders, Zaphiro is still keeping innovation at the core of the company strategy, continuously bringing superior solutions to the energy market.

SynchroGuard - Zaphiro Technologies

Explore the power of synchronized measurements from Phasor Measurement Units (PMUs) with SynchroGuard's Grid Monitoring and Automation System by Zaphiro Technologies. It seamlessly integrates with existing DMS/SCADA utility systems, where operators can visualize grid state and alarms in real-time. Zaphiro’s patented software algorithms extract unique information from data generated by proprietary SynchroSense Units and Third-party devices.
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Video: SynchroGuard Demo & Overview - Zaphiro Technologies

Video: Fault Detection and Wildfire Prevention - Ericsson and Zaphiro Technologies

Real-time Grid Monitoring

Zaphiro's grid monitoring module increases operator’s visibility of the grid state and reduces reaction time in case of hazardous situations.

Measurements and alarms can be displayed in real-time into the SCADA/DMS and in a dedicated user-interface.


We combine data from proprietary or third-party devices to supervise voltage and power flows into the grid at a high pace (more than 200x faster than conventional devices).


Thanks to the most advanced state estimation algorithm, we guarantee high quality and reliable data by automatically filtering out measurement errors and by estimating the state of grid nodes not supervised with a measurement device.

Fault location, Isolation and Service restoration (FLISR)

Automated Fault Detection, Classification, and Localization.

Zaphiro's Automated Fault Location Method significantly reduces the duration (from hours down to less than 1 second) – or even prevents – power outages, leading to dramatic improvements of grid reliability and resiliency KPIs (up to 80% reduction of SAIDI).

Our innovative and patented fault location method is accurate, fast, and already proven in real grids. It works for every fault type in every grid (solidly-earthed, isolated, or compensated grid) and is even capable of detecting incipient/intermittent faults.

Automated grid reconfiguration allows to implement the concept of self-healing grids, leading to increased safety of operators and higher operational efficiency.

Zaphiro enables

Real-time control of DERs

Safe and efficient integration of DERs (Distributed Energy Resources – renewables, EV charging stations and battery storage) is now possible thanks to our real-time control algorithms. Up to 300% more distributed generation can be connected without costly grid reinforcement.


Our DER control strategy quickly reacts to the sudden power changes of DERs taking advantage of the frequent grid monitoring (particularly suitable for Microgrids). Besides, the centralized approach ensures the optimality of the control effects in the entire grid.


The two main functions are voltage control and line congestion management aiming at maintaining the grid in safe and optimal operating conditions while maximizing renewable generation.