Arcturus’ Nano-Metals Could Halve Grid Electrical Losses

The global demand for copper is already immense, and it is poised to skyrocket. Driven by the energy transition and the explosive growth of data centers, we will need to produce more copper between now and 2050 than has been mined in all of human history, according to one study.

Much of this metal,along with vast quantities of aluminum,is destined for the electrical grid, a system in the United States that is notoriously aging and under strain.

“We’re hitting this inflection point of AI and the electrification of nearly every industry, and it’s creating this point where we have overburdened and overstressed the energy grid,” said Amir Mashal, founder and CEO of Arcturus.

While a conventional solution might involve simply installing more metal, Mashal’s stealth-mode startup offers a different path. Arcturus uses lasers to infuse carbon nanomaterials into copper and aluminum, creating electrical conductors that lose significantly less energy to heat. By swapping in this advanced material, existing power lines could carry more electricity without changing their size.

The practical impact is substantial: grid electrical losses could be cut in half. This would immediately unlock roughly 3% more electricity on average and up to 10% more during peak congestion,precisely when the grid is most strained. At the low end, that represents about a year’s worth of U. S. demand growth.

“Copper loses conductivity as it heats up, so the hotter it gets, the more energy it wastes as heat,” Mashal explained. “As I kept peeling back the layers of that onion, everything kind of started clicking to me because I noticed the same limit shows up everywhere. The modern world really runs on metals.”

Though the electrical grid is the ultimate target, Arcturus is beginning with smaller, more manageable applications: drones, robotics, and data centers. In these sectors, even a few percentage points of efficiency gain can have an outsized effect.

The company exclusively told TechCrunch that it has raised $8 million in a seed round led by Initialized Capital, with participation from Toyota Ventures, Breakthrough Energy Discovery, 1517, and Wireframe Ventures.

Mashal has been quietly perfecting his materials in a Malibu garage, where he can currently produce several centimeters of wire as a proof of concept. With the new funding, he plans to scale production to tens of meters, enabling testing in real-world applications like electric motor windings and busbars in power distribution equipment.

Despite their novel properties, the materials are designed as a “drop-in replacement” for conventional copper and aluminum. “Same form factors, no system redesign, no new training for folks to handle or crimp the material,” Mashal said.

The implications extend beyond the grid. Arcturus’ materials could lead to lighter drones with longer flight times and more efficient EVs. By reducing heat waste, they can also lower the cooling demands of data centers.

“All those industries have the same kinds of bottlenecks, whether your drone wants to have double the flight time or your graphics card is just heating up too much,” Mashal said. “Those are all areas where our material can fundamentally disrupt things.”