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Kaplan turbines are specifically designed for low to medium head hydropower installations, typically ranging from 10 to 70 meters (33 to 230 feet). These turbines are well-suited for sites with a moderate flow of water and a relatively low elevation drop. Kaplan turbines excel in locations where the water flow and head conditions vary, making them adaptable to a wide range of hydraulic conditions.
Their ability to efficiently operate under varying flow rates and heads makes Kaplan turbines particularly suitable for rivers and locations where water levels can fluctuate. The adjustable blades of Kaplan turbines allow for precise control and optimization of power generation, making them a preferred choice in situations where the hydraulic conditions are not constant.
In summary, Kaplan turbines are designed for sites with moderate head and variable flow conditions, showcasing their versatility in harnessing energy from rivers and water bodies with fluctuating water levels.
Contact Siapro and explore the tale of engineering triumph over nature's forces and the transformation of water's power into sustainable energy. As these turbines silently spin beneath the water's surface, they illuminate the world with greener energy solutions.
Photo: Siapro Kaplan hydro turbine designes, part of our turn key project


The students of the 6th and 9th grades of OŠ Kanal and OŠ Deskle already visited the Siapro company this school year. We specially introduced to them the department of planning and designing of hydroelectric power plants and shotblasting machines, where mechanical engineers and electrical engineers are employed. In the production or assembly of Siapro, they learned about other technical professions, such as mechanical technician, metal worker, mechatronics engineer, field engineer and others. Finally, we saw an even smaller hydroelectric plant in operation. The closest hydroelectric power plant to the company, which is the result of Siapro know-how and is one of our many references on renewable energy field, has been operating since 2008 on the Idrijca river in Slap ob Idrijca.


BEFORE AND AFTER - Siapro hydro plant reconstruction. The projects consists of reconstruction of Pelton turbine with 2 runners and 2 nozzless finshed, new fully-automatisation and 2 nozles servo regulation, water level regulation, long distance control. With exchange of main valve we will get more flow and we expect cca 12-15% more power. Photos are from assembly and testing process.

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SIAPRO d.o.o.
Postaja 9
Slovenia, EU

T: +386 5 3841 632

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