Arctic Operations: Volta PoF-Powered Drone Operates Battery-Free at -40 °C for 2.5 Hours
FOR IMMEDIATE RELEASE
Validation at UQAC AMIL Anti-Icing International Laboratory confirms cold-climate readiness of optical energy delivery for Arctic, defence, and emergency response applications
MONTRÉAL, QC — May 11, 2026 — Volta Space Technologies Inc. has achieved what is believed to be the first publicly reported demonstration of a battery-free, all-optical Power-Over-Fiber (PoF) drone operating at -40 °C for a continuous 2.5 hours. The test was conducted on May 7, 2026 at the Anti-Icing Materials International Laboratory (AMIL) at the Université du Québec à Chicoutimi (UQAC), one of the world’s leading facilities for cold-climate and icing research.
The demonstration follows Volta’s May 8 announcement of a world-record PoF transmission delivering 72 watts of electrical power over a 1-kilometer optical fiber link. Together, the two milestones validate the core elements of Volta’s emerging optical energy platform: high power delivered over long distances, and reliable operation in the extreme cold environments where battery-powered systems fail.
Why -40 °C matters
Lithium-based batteries — the energy source for virtually all conventional drones — lose performance rapidly below 0 °C and are typically inoperable below -30 °C. This restricts UAV operations across vast portions of the Arctic, sub-Arctic, and high-altitude environments precisely where persistent surveillance, communications, and emergency response are most needed.
By eliminating the onboard battery and delivering energy as light through a single optical fiber, Volta’s PoF architecture is intrinsically immune to the cold-temperature failure modes that limit conventional UAVs. The AMIL test validates this principle under controlled, certifiable conditions.
“At AMIL we routinely subject aerospace systems to the harshest cold and icing conditions found anywhere on Earth. Watching a drone fly continuously for two and a half hours at -40 °C with no battery on board — powered entirely through an optical fiber — is a genuinely new result. It opens a path for UAV operations in environments where conventional platforms simply cannot perform.”
— Professor Jean-Denis Brassard, Anti-Icing Materials International Laboratory (AMIL), Université du Québec à Chicoutimi
What was demonstrated
• Battery-free flight: the drone carried no onboard chemical energy storage; all propulsion and avionics power was delivered optically through a single fiber.
• Sustained operation at -40 °C: 2.5 hours of continuous operation in AMIL’s climatic chamber, with the full optical-to-electrical conversion chain exposed to the cold environment.
• Full system functionality: stable photonic power conversion, propulsion, and command-and-control links throughout the test duration.
Application implications
Validated cold-climate operation extends Volta’s addressable mission set into operationally critical environments:
• Arctic and northern surveillance for sovereignty, search-and-rescue, and infrastructure monitoring across Canada’s North, Alaska, the Nordic countries, and Greenland.
• Cold-weather defence operations where conventional battery-powered tethered drones fail — NATO northern flank, mountain operations, and high-altitude deployments.
• Winter emergency response providing persistent overhead communications, lighting, and sensing during ice storms, blizzards, and polar vortex events when ground infrastructure is degraded.
• Critical infrastructure monitoring of pipelines, power lines, and remote installations across cold regions where battery-powered platforms cannot maintain station.
“Three days ago we set a power-over-fiber world record. This week, we showed that the same architecture works at -40 °C — not for minutes, but for hours. Battery-powered drones cannot do this. Conventional tethered systems with copper conductors struggle with the weight and the brittleness. Optical fiber doesn’t care about the cold. That’s the point. We are building a platform that operates where others fail, and AMIL’s test confirms we’re ready for the field environments our customers actually live in.”
— Guillaume Blanchette, Director of Laser & Technology Development, Volta Space Technologies
About AMIL at UQAC
The Anti-Icing Materials International Laboratory (AMIL) at the Université du Québec à Chicoutimi is an internationally recognized centre for cold-climate research, atmospheric icing, and anti-icing materials evaluation. AMIL operates climatic chambers and icing wind tunnels capable of replicating the extreme conditions encountered in Arctic, aerospace, and northern infrastructure environments, and certifies materials and systems for operators worldwide.
Next steps
Volta will combine the May 8 long-range power-delivery results with the May 7 cold-climate validation in an integrated field demonstration scheduled for the Finnish defence ecosystem in November 2026. The platform development continues under programs including NATO DIANA, the Canadian Space Agency, the European Space Agency, and the U.S. Operational Energy Investment Committee Fund (OECIF) Lepton program (multi-million USD).
About Volta Space Technologies
Volta Space Technologies Inc. develops Power-Over-Fiber and laser power beaming systems for defence, unmanned systems, and cislunar space applications. Headquartered in Montréal with operations in Canada and the United States, Volta is advancing the architecture for delivering energy as light — across kilometers on Earth and across the cislunar domain.