Hivoduct AG develops and manufactures innovative pressurized air cables for efficient and sustainable bulk electric power transmission. The new technology uses pressurized air as an environmentally friendly insulation medium and a proprietary boltless flange design, eliminating the need for PFAS gases such as SF₆, and reducing production and installation cost. Pressurized air cables combine excellent electrical, mechanical, and thermal performance. They enable high power transmission capacity, low transmission losses, reduced electromagnetic fields, and outstanding fire protection. The product portfolio covers voltage levels from 12 kV up to 420 kV and provides a sustainable alternative to overhead lines, XLPE underground cables, and GIS busbars. A key advantage of Hivoduct systems is their suitability for installation in existing tunnels and infrastructure corridors, minimizing construction effort and environmental impact. Installed in service tunnels or protective pipes, the systems are well protected against weather influences and external interference, making them ideal for critical energy infrastructure in densely populated urban areas as well as in locations exposed to vandalism or terrorism. At Power Transmission & Distribution Technology Expo 2026, Hivoduct will present its latest pressurized air cable solutions designed to support the transition towards a reliable and future-proof electric power grid.