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| Company | Herrfors |
| Location |
Finland
|
| Timeline | 2025 |
| Project Overview |
Herrfors deployed Safegrid’s Intelligent Grid System® to improve fault detection, reduce outage durations, and enable predictive maintenance across its distribution network. By combining real-time monitoring with Smart Fault Prediction, the utility enhanced grid reliability and operational efficiency in a challenging operating environment. |
| Products | Safegrid Intelligent Grid System® |
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This is a Safegrid Case Study.
Background
Herrfors operates over 1,200 km of 20 kV distribution network, including approximately 850 km of overhead lines. The network is exposed to harsh environmental conditions such as strong winds, snow accumulation, and falling trees—factors that frequently lead to faults and outages.
To ensure reliable power delivery and manage costs effectively, Herrfors sought to improve its ability to detect faults quickly and anticipate failures before they occur.
Challenge
Herrfors faced several persistent challenges:
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Frequent weather-related faults caused by wind, snow, and vegetation
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Difficulty locating faults quickly and accurately
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High operational costs due to manual inspections and emergency repairs
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Limited ability to predict failures before outages occur
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Need to improve overall grid reliability and customer satisfaction
Traditional methods often required time-consuming patrols and reactive maintenance, leading to longer outages and inefficiencies.
Solution
Safegrid implemented its Intelligent Grid System®, providing Herrfors with advanced real-time monitoring and fault detection capabilities.
Key capabilities:
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Precise fault location, often within a single pole span
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Real-time alerts enabling immediate response
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User-friendly interface for quick interpretation of fault data
Smart Fault Prediction:
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Detection of potential weak spots before failure
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Continuous monitoring of network conditions
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Data-driven insights enabling proactive maintenance planning
This combination of real-time detection and predictive analytics allowed Herrfors to transition from reactive to proactive grid management.
Benefits
The solution delivered significant operational improvements:
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Faster fault location and response times
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Reduced reliance on manual inspections
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Lower operational and maintenance costs
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Improved decision-making through data insights
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Enhanced ability to prevent faults before they occur
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Increased overall grid reliability
Results
With Safegrid’s technology, Herrfors achieved:
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Faster fault identification and restoration
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Reduced outage durations and fewer service interruptions
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Lower operational costs through minimized emergency repairs
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Improved customer satisfaction due to more reliable power delivery
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Early detection of potential failures through Smart Fault Prediction
“We are happy, our life gets easier, operational costs lower, and customer satisfaction gets better.”
— Henrik Snellman, Operations Manager, Herrfors Nät-Verkko
Conclusion
By adopting Safegrid’s Intelligent Grid System® and Smart Fault Prediction, Herrfors has significantly improved its ability to manage a challenging distribution network. The shift to proactive maintenance has reduced outages, lowered costs, and enhanced customer satisfaction.
This case demonstrates how combining real-time monitoring with predictive analytics enables utilities to build more resilient, efficient, and future-ready power networks.