ProxGrid's Aerial Robots Aim to Replace $15,000-an-Hour Power-Line Helicopters

The most expensive tool in a grid operator's maintenance kit is often a helicopter, with crews paying upwards of $15,000 per hour for live-line insulator washing [Marco Moletta - KTH Royal Institute of Technology | LinkedIn, retrieved 2026]. ProxGrid, a robotics startup founded in Brisbane in 2026, is building aerial robots designed to replace those helicopters and the scaffolding used for industrial cleaning. Its bet is a two-stage product roadmap, starting with a pressure-washing drone for tanks and towers before tackling the far more complex problem of energized high-voltage lines.

A Wedge in Industrial Pressure Washing

ProxGrid's first commercial product is the SPD25, an aerial robot designed for work at height. It carries a 13-kilogram payload, feeds a high-pressure line to a spray boom, and uses centimeter-level RTK positioning to pressure-wash structures like cooling towers and building facades up to 50 meters high [proxgrid.com]. The immediate value proposition is operational: it keeps human cleaning crews on the ground, eliminating the need for scaffolding, lifts, or rope access. This positions the company to sell to industrial facility managers and aerial service contractors, a market with a clear, recurring pain point and lower regulatory barriers than the power grid. The SPD25 serves as both a revenue stream and a development platform, allowing ProxGrid to refine its core robotics and autonomy in a less hazardous environment.

The Team's High-Voltage Pedigree

What makes ProxGrid more than just another industrial drone shop is the specific high-voltage expertise of its founders. CEO Rasmus Gupta previously led the development of a live-line drone certified for contact at 765 kilovolts, which is now in commercial operation with Canadian utility Hydro-Québec [proxgrid.com]. An aerospace engineer and commercial helicopter pilot, Gupta has a decade of experience designing and building industrial drone systems [F6S, September 2026]. Co-founder and COO Aidan Cairns is also a commercial helicopter and drone pilot with hands-on experience as ground crew for power-line insulator cleaning [proxgrid.com]. This background gives the company's longer-term ambition,an electrically insulated drone for inspecting, cleaning, and coating live insulators,a foundation in proven, field-tested engineering.

The Path to Live-Line Operations

The technical leap from washing a cooling tower to servicing a live 275-kV or 500-kV line is substantial. ProxGrid's development path reflects this complexity. The company is currently raising $300,000 in pre-seed investment to build two demonstrator spray drones and expand its engineering team [ECD Online, July 2026]. It has secured a build-and-test site at the ARM Hub in Brisbane and was a finalist in the 2026 Propel-AIR accelerator program [ECD Online, July 2026]. The next phase involves co-applying for innovation funding with the University of Queensland and an unnamed transmission network service provider, a critical step for moving from lab prototypes to utility-approved field trials [ECD Online, July 2026].

ProxGrid's technical roadmap hinges on a few core systems that must work flawlessly at scale. The positional accuracy provided by RTK GPS is table stakes for precise spraying, but the real engineering challenge is in the drone's flight controller and insulation systems for live-line work. The vehicle must maintain stable flight while managing the physical forces of a high-pressure hose and, eventually, operate in proximity to strong electromagnetic fields without causing a flashover. The business model, meanwhile, shifts from selling or leasing equipment for industrial cleaning to providing a mission-critical service for grid operators, where reliability and safety certification are the primary currencies.

Where the Bet Gets Hard

The risks for ProxGrid are not subtle, and they scale with the ambition. The company's initial market is competitive, filled with established industrial drone service providers. Its insulation technology, while based on prior work, must be re-proven and certified for each new utility customer, a sales cycle measured in years, not months. Finally, operating at the intersection of aviation and critical energy infrastructure invites regulatory scrutiny from multiple agencies. A single incident involving a drone near live transmission lines could set the entire category back years. The company's success depends on executing perfectly on the simpler pressure-washing wedge to fund and de-risk the far more ambitious live-line product.

Sources

1. [proxgrid.com, retrieved] Aerial Robots for Work at Height & Pressure Washing | https://www.proxgrid.com/
2. [ECD Online, July 2026] Brisbane company designs drone for powerline insulator cleaning | https://www.ecdonline.com.au/content/electrical-distribution/news/brisbane-company-designs-drone-for-powerline-insulator-cleaning-1254753126
3. [F6S, September 2026] Rasmus Gupta | PROXGRID | F6S Member Profile | https://www.f6s.com/member/rasmus-gupta
4. [Marco Moletta - KTH Royal Institute of Technology | LinkedIn, retrieved 2026] Post on ProxGrid | https://www.linkedin.com/in/marcomoletta17111996/
5. [ARM Hub, October 2026] Removing Danger from Power Lines | https://www.armhub.com.au/blog-posts/removing-danger-from-power-lines