Voith participates in FIThydro

2 December 2020

Voith has announced it is engaged in the Europe-wide Fish Friendly Innovative Technologies for Hydropower (FIThydro) project as part of the European Union’s Horizon 2020 research and innovation program. As part of the project, it is developing individual assessment methods and technologies for more sustainable and fish-friendly hydropower utilization.

The project involves experts investigating existing hydropower plants at 17 locations in eight countries in cooperation with industrial partners, including Voith. The four-year EU project studies the impact of hydropower plants on ecosystems, especially on fish, and received €7.2 million euros in funding from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 727830 and the Swiss National Fund for Scientific Research (SNF).

Coordinated and managed by the chair of Hydraulic Engineering and Water Management at the Technical University of Munich (TUM), a total of 13 research institutes and 13 companies in Germany, Austria, Belgium, Estonia, France, Great Britain, Norway, Portugal, Switzerland and Spain are participating in the project. 

The project partners have analyzed and extended existing methods, technologies and approaches to assess the various impacts of hydropower plants and possible protective measures on fish populations. For this purpose, measurements were carried out at the test sites and in laboratories. In the second part of the project, possible measures for power plant modernization as well as new tools for decision support for hydropower operators and planners were tested.

“It was important to us to adapt existing solutions to the site-specific conditions of each power plant,” explained Prof. Peter Rutschmann, chair of Hydraulic Engineering and Water Management at the TUM and coordinator of the project. “We therefore attached great importance to ensuring that these sites reflect the diversity of geographical, hydromorphological and climatic conditions. Thus, our results are applicable to different hydroelectric power plants in Europe.”

As a project partner, Voith Hydro, in cooperation with the TUM, contributed to the further development of simple and innovative methods for assessing the fish passage through water turbines.

“Influences such as power plant operation and aspects of fish behavior were investigated using evaluation methods based on numerical flow simulation,” explained Ulli Stoltz, development engineer at Voith Hydro and contributor to the project. “In cooperation with the project partners, these methods were then applied to selected test cases and compared with the measurement data from fish-like sensors sent through the turbines at these locations.”

These and other new solutions, evaluation methods and technologies – such as a hazard index for fish populations, fish migration simulations and an open-access decision support tool for hydropower planning – can provide hydropower operators with important support in assessing and planning protection measures. Furthermore, these assessment methods can be applied during the design phase of water turbines for new and modernization projects. The knowledge gained enables an optimized hydraulic design for improved fish passage.

In addition, the improved turbine design can be combined with other measures such as fish passage systems. Thus, environmentally friendly energy can be generated while at the same time considering the river ecology.

As part of the FIThydro project, studies were conducted at several locations in cooperationwith Voith, such as the Bannwil hydropower plant. Copyright: ETH Zurich Laboratory of Hydraulics, Hydrology and Glaciology VAW

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