Henrik Stiesdal is a Danish wind power pioneer. He built his first, small wind turbine in 1976, aiming at making the family farm self-sufficient on energy. In 1978, he designed one of the first wind turbines representing the so-called “Danish concept”. In 1979, the design was licensed to Vestas A/S, a Danish manufacturer of farm wagons, truck cranes and ship coolers, thereby kick-starting the modern wind industry in Denmark. After first working for Vestas as a consultant, he joined the company in 1983 as project manager. In 1987, Stiesdal joined the Danish wind turbine manufacturer Bonus Energy A/S, in 1988, he became a technical manager and in 2000 he took the role of Chief Technology Officer. In 2004, Bonus Energy A/S was acquired by the German technology company Siemens. Stiesdal remained in the position as Chief Technology Officer of Siemens Wind Power until the end of 2014, when he retired.

In 2016, Henrik Stiesdal became affiliate professor at DTU Wind, the Technical University of Denmark´s Department of Wind Energy.


Stiesdal A/S is an innovative technology company focused on the development of technologies for climate change mitigation.

The company was established in 2016 by Henrik Stiesdal, one of the pioneers of the wind industry. Stiesdal built his first wind turbine in 1976 and in 1978 designed one of the first commercial wind turbines, licensed by Vestas in 1979. Stiesdal worked with Vestas until 1986 and joined Bonus Energy, later Siemens Wind Power in 1987. In 1988 he was appointed Technical Manager, and in 2000 Chief Technology Officer. He retired from Siemens Wind Power at the end of 2014.

Stiesdal A/S carries out its technology development in three subsidiaries:

  • Stiesdal Offshore Technologies A/S, developing industrialized, low-cost floating and bottom-fixed wind turbine foundations 
  • Stiesdal Storage Technologies A/S, developing electrical energy storage with 10-100 h storage capacity
  • Stiesdal Fuel Technologies A/S, developing carbon-neutral fuels for heavy vehicles and ocean-going ships, and carbon-negative fuels for aircraft