Wind enters intake vents arranged radially at the top of the Invelox tower. In the small-scale prototypes, this funnel-shaped structure was made of either steel or aluminium/steel architectural fabric, but it could be fashioned from other materials that can stand up to a site’s wind loads and weather.

As the wind travels down the tapering “runway”, it picks up speed due to the Venturi effect (a phenomenon in which the airflow is accelerated by its own changing pressure), boosting its kinetic energy as it approaches the ground-level turbine and generator set.

Channelling