Who are we...

Since the foundation of the company in 2001, hei has evolved into a global leader in providing highly efficient solar lighting products.

hei provides services and products of highest quality in all business areas.

Read more about our quality management system (pdf, 183 kB, German) and see our ISO 9001:2015 certificate here (pdf, 262kB, German) or here (pdf, 261kB, English).

Learn more about:


Dr. Dieter Hornbachner, Managing Director

Born 1964 in Steyr / Upper Austria.

Studies in Electrical Engineering at the Vienna University of Technology and in Business Administration at the Vienna University of Economics and Business Administration.

Research assistant at the Institute of Communications and Radio-Frequency Engineering of Vienna University of Technology; research projects for the European Space Agency (ESA) in the area of line-of-sight radio paths with laser beams between two satellites.

Advicer on energy and transport policy; assistant of Prof. Alexander Van der Bellen; Group of the Greens/Austrian Parliament.

As energy and technology expert, consultant for industrial companies, governmental and non-governmental organisations.

Founder of Hornbachner Energy Innovation (hei) in 2001.

Contact Dieter Hornbachner:





Our vision

Global warming and scarce resources necessitate an eco-social reorientation and a phase-out of fossil energy sources and risk technologies. Our vision is an ecologically, economically and socially sustainable energy supply.

Our contribution

With our work, we would like to contribute to the introduction of renewable energies and the increase of energy efficiency.

Our approach

We are striving to accomplish this through the development of innovative technologies and products. In doing so, we are endeavouring to create new areas of application for renewable energies while lowering costs to make them competitive.

Scope of Business


Environmentally-friendly energy technologies

hei operates in the area of environmentally-friendly, climate-protecting and resource-saving energy technologies.

Development and manufacturing

hei develops new energy technologies and specific product applications. We produce our products independently or in cooperation with our project partners.

Business areas

hei is currently active in the following business areas: Innovative photovoltaic product applications (e.g. lights, facades) Photovoltaic technologies Development of de-centralised energy systems



3 good reasons (amongst others) to join HEI:

  • Creativity: Our lighting technology is recognized as a global game changer.
  • Technological leadership: Spread a new idea that makes the world a better, greener place.
  • Coffee: It's complimentary, organic, fair trade, awesome and it comes with a very special ingredient: cool colleagues.

No matter whether you are at the beginning of your professional career or already have many years of work experience: HEI is always seeking creative individuals who draw their motivation from the passion for the task.

See available positions