A tech startup called Vortex is creating a wind generator that requires no blades or rotating parts. The product by the same name is a modular, portable generator that functions well in combination with other generators or solar panels.

As the company explains it, the turbine isn't technically a turbine as it does not have rotating parts. Also it...does not necessarily generate electricity. It is focused on Von Karman's phenomenon of aeroelastic resonance, harnessing energy from the wind utilizing a phenomenon called vortex shedding or vortex street.

The system allows an act of oscillation with a quiet wave, which makes it suitable to be put anywhere without need of lubricants nor upsetting wildlife.

Approximately 100 units will be produced until the beginning of 2021, which will be distributed throughout the world, primarily in Europe, especially in Spain. Recipients would include universities, autonomous labs, and natural parks as well as affiliate organizations around the globe. The objective is to collect measurements, observe their behavior in various positions and locations, and produce indicators to enable the instruments to be improved and understood.

As described on the company's page,

Here it is an almost unexploited market for a wind technology like ours; which can give you little power but constant all year round even with weak or turbulent and very changeable winds, which requires almost no maintenance, which is safe and which represents a lower impact on the environment, visual, sound and on local fauna. In essence, what we have wanted to do in Vortex Bladeless is a wind turbine that resembles as much as possible what makes solar panels the kings of the renewable energy market.
Of course, one should not think of installing a single Vortex device just as one does not think of installing a single solar panel. Since in order for these devices to operate properly they only require a distance in free space around them equivalent to half their height (r=h/2), this allows them to be placed very, very close together compared to conventional wind turbines, forming rows, arrays or grids of them, with only a fraction of space that would be required for the same number of regular turbines of similar size.