French start-up HyLight raises €13 million for hydrogen airships that inspect power lines

HyLight, a French start-up that builds autonomous airships to inspect infrastructure, has raised 13 million euros, about 14.7 million dollars, according to reports on 12 October 2026. The round was led by Rubio Impact Ventures, DRW and Teampact Ventures, with existing investors Y Combinator and Ring Capital also taking part. The company plans to use the money to build more of its hydrogen-powered airships, which fly along power lines, railways and pipelines to check for damage and leaks, and to expand beyond France into Germany and the Netherlands.

Power grids, rail networks and gas pipelines stretch over huge distances, and checking them is slow and costly. Utilities typically rely on ground crews, helicopters or drones. Helicopters are expensive and burn fuel; small drones cannot fly far or stay up long. An airship sits in between: it can fly slowly and steadily for long periods while carrying several sensors, which the company says suits the job of scanning hundreds of kilometres of line or pipe for faults.

HyLight's choice of sensors shows what customers want. LiDAR builds detailed 3D maps that can reveal sagging cables or vegetation growing too close to power lines. Cameras record visible damage. Methane detectors can find gas leaks from pipelines, which matter both for safety and for climate, because methane is a powerful greenhouse gas. Using a hydrogen fuel cell rather than a combustion engine also fits the climate goals of the utilities buying the service.

The list of named customers, including large French energy, rail and construction companies, suggests the technology has moved beyond trials into regular use. The funding round, with backers focused on climate and infrastructure, is aimed at scaling that up. The jump from four airships to a target of 15 flying at once is significant for a hardware company, and the challenge will be building and certifying aircraft fast enough while keeping costs down.

For countries such as India that operate long power lines, rail routes and pipelines, the approach is worth watching as a possible alternative or complement to drones and helicopters.

Short-term: HyLight will build more airships and begin operations in Germany and the Netherlands.

Long-term: If airship inspection proves cheaper and cleaner than helicopters, utilities in other countries could adopt it, changing how long-distance infrastructure is monitored.

Who is affected: Power, rail and gas companies; inspection and maintenance crews; drone and helicopter service providers; and investors in climate technology.

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