X Lab: The Expertise That Built CESI

We go back to where it all took shape: the X Lab. In 2026, as CESI celebrates its first 70 years, we step into the lab where it all began. From the very beginning, CESI was not just about technology — it was about people with rare and specialised skills. Engineers and technicians faced complex power system challenges for the first time at national scale. (CESI)

In the “X Laboratory”, these professionals worked on:
🔹 short-circuit power studies
🔹 load flow calculations
🔹 network stability analyses
all requiring advanced experimental methods and tools.

This was not abstract research — it was research serving the power system, with direct real-world applications to ensure reliability, safety and growth.

These technical competencies became part of CESI’s DNA, deeply rooted in the testing, network analysis and technical consultancy work that we continue to do across the globe today.