We want hydropower plants that
are located in an ecologically unspoilt
watercourse habitat and to make a
contribution to this.

From the opening speech at the inauguration of the Hausen/Black Forest system


  • Decentralised electricity generation
  • Helps to secure the regional infrastructure
  • CO2-free production
  • Independence from fossil fuels
  • Baseload-compatible - plants with hydropower screws can operate day and night irrespective of the season
  • Takes watercourse conservation into consideration
  • Fish-friendly
  • Plants with a hydropower screw are 100% recyclable
  • Service life of decades 

Decentralised energy production is good for the environment

Small hydro is not something on the same scale as the Edersee reservoir and dam in Hesse, Germany. However, as the experts also attest, smaller systems are an incredibly common-sense form of local electricity generation. Many countries are returning to small hydro. Always assuming that watercourse conservation is taken into consideration. The particular value here lies in decentralisation; power is available "on the spot". It is understandable that the move away from centralisation - where the few get to dictate to the many - towards decentralisation - where the many get to decide for themselves - does not please everyone.

The facts for
Small hydropower plants are impressively efficient, have a uniform, predictable utilisation period over the year and are therefore baseload-compatible. They are CO2-free and, after a long service life of several decades, are 100% recyclable.

The ecological impact of smaller hydropower plants can be entirely environmentally friendly, if you pay attention to the details. Small hydro can even improve the ecology of the watercourse. If conservationists and operators work together, they are capable of producing some good solutions.

No forest has been felled for this electricity, no mono-culture created, no hazardous waste produced, no sea polluted, and there is no need for pipelines over thousands of kilometres. This prevents a catastrophe involving damage occurring across national borders and rubbish lasting for millions of years.

No grid problems resulting from peak load
This baseload-compatible form of electricity also causes no problem to the grid as a result of peak load. The first German electricity feed-in law for renewable energy was passed in 1991. Since then, the world has changed enormously. By contrast, our networks have remained the same. 

All of us!
We must all take charge of decentralisation - and, of course, review our energy behaviour. This is the most environmentally friendly way - not consuming energy in the first place.

Case studies

  • Hydropower screw SH, Untermünkheim - Germany
  • Hydropower screw SH, Munich - Germany
  • Fish migration screw FAS in Pilsing, Austria