23.02.2026 • Topstories

Smart grid security: How redundant OT communication, hardware and UPS solutions from Connect Com and Slat make the energy supply future-proof

The Nidwalden cantonal electricity utility in central Switzerland (EWN) was faced with the challenging task of replacing at least 80% of its electricity meters with smart meters in line with the Swiss Energy Strategy 2025 - a project of considerable scope, as it involved over 20,000 meters. This involved modernizing the entire OT communication infrastructure to meet the high requirements for availability, reliability and future viability.

Gray-clad elongated building with EWN inscription with meadows and mountains in... — Nidwalden cantonal power station in Central Switzerland (EWN)
© EWN

In times of increasing digital networking, a stable network infrastructure is the basic prerequisite for a reliable energy supply. Any interruption can lead to considerable disruption. The aim was therefore to build a flexible and scalable network that supports future intelligent requirements in the smart grid. A key requirement was to ensure that both the switches and the connected end devices remain continuously supplied even in the event of outages or power fluctuations.

By using a PLC smart meter solution that communicates via Aginode switches with redundant power supply through Slat DC UPSs from the SDC series, the energy supplier found a strong partner for current and future requirements in Connect Com AG Switzerland.