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The simple
fish pass

Fishcon’s fish pass, known as Fishcon lock or 2-chamber organism bypass, combines ecological water protection with sustainable use of hydropower.

Fish pass

Ascent and
descent for fish
and organisms

Reference systems

Top marks
for our
Fishcon pass.

Fish pass combined with sustainable energy generation

The fish pass with innovative hydraulic circuitry enables fish and microorganisms to migrate gently in both directions in flood protection structures and hydropower plants.

The Fishcon lock requires very little space thanks to its compact design and can create the passage of fishes in a way that conserves resources. In addition, environmentally friendly electrical energy can be generated – this is how we combine water protection with sustainable hydropower.

The Fishcon lock has a modular structure and can therefore be implemented both quickly and economically. Fishcon takes care of the entire project handling, from the location and suitability test right up to coordination and implementation with partner companies – we also work together with your trusted planning office. The Fishcon lock has received multiple awards and is scientifically recognised. The Fishcon lock has been extensively tested according to the current Austrian guideline and has already been assessed several times as functional with the marks very good and good. Fishcon is now certified and IÖB partner for public projects.

From the model in the aquarium to a simple fish pass

The fish pass was developed from 2016 to the end of 2020 by Fishcon in cooperation with the University of Natural Resources and Life Sciences of Vienna, University of Technology of Graz and the specialist company K. u.F. Drack. By means of several research and development projects supported by the public sector, it has been possible to bring a functional product onto the market from which owners of weir systems and sole steps can benefit several times over.

Proven technology

The Fishcon lock was scientifically examined as early as 2017. Our pilot systems have been assessed as functional several times by independent bodies.

Free location check

Personal advice is important to us, which is why we check your location free of charge and are happy to discuss project-related details on site.

Multi award-winning

Since our founding we have received several prizes and awards. We recently won the 3rd place at the Best Business Award 2021.

Fish pass awarded – from Greenstar to Allianz environmental award

Fishcon has received several prestigious awards in a short time. Expert juries from the fields of start-ups, innovation or the environmental sector were won over with the idea of the simple fish pass.


Allianz Environmental Award

The Allianz Environmental Prize (Umweltpreis) is awarded once a year to sustainable ideas in the field of environmental and climate protection from Austria. Despite more than 100 submissions, Fishcon was able to inspire the jury and the public with the innovative fish pass and with great enthusiasm, achieved second place in the category “individual, small and medium-sized enterprises”.


Edison Award

The “Edison” competition honours the best ideas from inventors from Upper Austria. The ideas, the founders and the business model are examined in detail by experts. In the category “Innovative-oriented ideas” Fishcon was able to convince with the new fish pass and won the coveted Edison Gold in 2019.


i2B competition

The largest business plan competition in Austria takes place annually and honours the best business concepts after a detailed examination by experts from the Austrian Chamber of Commerce and industry. Fishcon was able to convince with the business concept and took second place in 2018 in the category “Service, business, trade”.



The Fishcon team took part in the Greenstart competition, the start-up initiative of the Climate and Energy Fund, with great success with the Fishcon lock. By means of an assessment by an expert jury and a public vote, Fishcon was chosen from a number of very strong companies as the TOP 3 Greenstars 2017.

What customers and partners say about us

“We at KPL are enthusiastic about innovations and are happy to get involved in projects that are in harmony with nature. For these reasons, the simple implementation on site and the low-maintenance design, we were the first customer to choose the Fishcon lock. Fishcon implemented the project at our hydroelectric power station on the Alm to our complete satisfaction. The uncomplicated cooperation in the project management as well as the very positive operating experience of the Fishcon lock show us that we made the right decision!”

Karl PlatzerOwner

“The Fishcon lock attracted me as the operator of several hydropower plants and as the managing director of K.u.F. Drack, a company with over 100 years of experience in the fields of wood, energy and metal, is convincing in several ways. The innovative fish pass allows a cost-effective creation of passage and has great potential to make a significant contribution to the sustainable use of hydropower throughout Europe. Therefore, we are now not only a happy partner of Fishcon, but we are also very happy to implement innovative projects together at our power plants. The commitment and competence of Mr. Mayrhofer in the project management is particularly to be emphasised!”

Dipl. Ing. Stefan DrackCEO
Fish pass

Find out more about the technology, advantages and function of our patented 2-chamber organism bypass.

Reference systems

Our pilot systems were awarded top marks. Find out more about our reference systems.