Norway hosts Europe’s first plasma-powered excavation trial

EarthGrid has successfully demonstrated its Plasma Excavation System (PES) in Norway, marking the first use of plasma-powered rock removal technology in Europe. Conducted in collaboration with the Norwegian power systems operator Statnett, the test campaign validated the ability of plasma technology to excavate hard rock without explosives, mechanical cutters, drilling chemicals, or vibrations. This vibration-free performance makes it particularly suitable for excavation near energized or sensitive facilities.

The demonstration took place in Klæbu, near Trondheim, under challenging geological conditions typical of the region’s hard rock formations. The PES uses controlled plasma arcs to fragment rock at high temperatures, offering a cleaner and more precise alternative to traditional excavation methods. According to Statnett’s R&D and innovation division, the trial achieved promising results and confirmed the system’s potential to shorten operational shutdowns while minimizing disturbance.

Norway’s energy grid modernization presents a unique opportunity for testing innovative excavation methods. The country’s terrain, characterized by rugged rock masses and environmentally sensitive areas, makes conventional drill-and-blast operations difficult to execute. Plasma excavation could streamline underground infrastructure projects by reducing safety risks, lowering environmental impact, and minimizing operational downtime.

The technology had previously proven its efficiency in California’s Sierra granite, one of the hardest rock types in the United States.

Building on its Norwegian success, EarthGrid is preparing to launch a Tunnel Boring Robot (TBR) in early 2026. The robot will utilize the same plasma-boring technology to excavate a 10-meter test tunnel through solid granite, representing a scalable leap toward large-scale tunneling operations.

The company is now seeking pilot partners among European utilities, contractors, and infrastructure developers to expand plasma excavation applications across the continent. With its proven capacity to cut through rock efficiently and safely, the technology could transform how underground networks for power, communication, and transportation are built.