About us

The Company

SET Sustainable Energy Technologies GmbH

is one of the leading technology companies in the development and industrialization of electro-mechanical differential systems for the efficient speed control of large-scale pumps, compressors and wind turbines.

35 years of experience in the development, production and testing of drives make SET a reliable global industrial partner. Our corporate strength lies above all in the internal symbiosis of electronics, mechanics, calculation and automation, which is reflected in the high quality and reliability of our products.

SET is a global technology company from Klagenfurt, Austria. We offer our international customers from the business sectors industry, energy, oil & gas and wind energy innovative drive and test lab concepts.


Scope of supply


SUCCESS STORY from 1986 to this day

Gerald Hehenberger, founder and CEO of SET GmbH, has consistently played a leading role in system development over the past 30 years. Right from the very beginning of the wind industry he has been among the pioneers in developing new technologies for drive Systems.

The evolutionary path started in the mid-eighties with the development of one of the first 600 kW variable-speed, pitch-controlled turbines, followed by doubly-fed induction-generator systems in the mid-nineties, and multi-megawatt offshore WECs in the early years of this century. With SETCON® for industry and DSgen-set® for wind energy, he has taken SET GmbH to a level that sets new standards in drive technology.


DI Gerald Hehenberger

Owner and founder of SET GmbH and GHP Holding GmbH



SET office building

Dating back to the Austro-Hungarian Empire with a great history and long set-palais-sterneck-logotradition, Palais Sterneck is home to SET GmbH. The majestic building with its neoclassical facade previously housed the Post Office’s Carinthian headquarters. Surrounded by scenic mountains and close to Lake Wörth, Palais Sterneck is situated right in the center of Klagenfurt, one of Austria’s most attractive cities.

This location was carefully renovated and refurbished from 2011 through 2013, taking the needs of preservation into consideration. In addition to office space on four levels totaling 5,000 sqm, large conference and meeting rooms, Palais Sterneck also has an underground car park with over 100 spaces.