‘Wooden turbine towers are lighter, more modular and can be built taller than steel towers,’ said Lundman. Modvion received EU funding to advance the goal of high-altitude wind turbines with ...

Drawbacks include complaints from locals that wind turbines are ugly and noisy. The slowly rotating blades can also kill birds and bats, but not nearly as many as cars, power lines, and high-rise ...

With high-altitude ballooning, you are at the mercy of the winds, which can move your payload hundreds of kilometers and deposit it in some inaccessible spot. To solve this [Yohan Hadji] created ...