Since the early seventies, ARNO has been one of the leaders in Eastern Canada in the construction and modification of electrical substations.

Infrastructure projects, civil engineering and structures, equipment, control and protection; our expertise in this sector is global. We have merit in many turnkey project achievements (wind farms, industries, etc.), allowing us to provide all the necessary expertise to carry out any project (EPC).

In addition to the construction of conventional substations of any voltage, our competences also include specialties such as SF6 gas insulated substations, high-power DC converters, FACTS, insulated high-voltage cables and terminations, transformers oil treatment and degassing, and much more.

We have all the equipment and expertise required to complete any electrical substation project (transformer degassing units (vacuum oil purifier), high-voltage cable unwinding units, trained and accredited labor to perform high-voltage junctions and terminations, etc.)

Some of our projects

All projects
Poste des Patriotes - Hydro-Québec

Des Patriotes substation - Hydro-Québec

Mise à niveau du réseau électrique de Waskaganish

Upgrade of the Waskaganish electrical grid

Poste Notre-Dame - Hydro-Québec

Notre-Dame substation - Hydro-Québec