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Construction of a new SHP has started

SHP Dobroszów

Within a year, the Small Hydroelectric Power Plant will be built in Dobroszów Wielki on the Bóbr River, which will produce an estimated 6000 MWh per year. Works related to this investment started at the beginning of September. Contractors and investors met at the handover of the construction site

On August 28 in Nowa Sól an agreement was signed between the company Wodel, which is the general contractor, and the investor - MEW Dobroszów for the implementation of the task entitled "Construction of the Small Hydropower Plant on the Bóbr River at km 50 + 140 of its course"
SHP with an installed capacity of 3 x 315 kW will be built in Dobroszów Wielki.

The scope of work includes the construction of a weir with a shell closure with a control room, construction of hydroelectric chambers, power plant building, inflow and outflow canal, protection of the bottom and slopes of the river, construction of an earth dike and steel wall on the left bank, and construction of a new fish pass for fish and stone rapids. A transformer station will also be built at SHP. The power plant will be equipped with automatic grate cleaners and, of course, turbo-generators.

This is not the first investment of this type that Wodel is implementing. - We are a company with the greatest experience in the industry in Poland. We have been operating since 1986 and we are constantly developing. We have the knowledge and facilities to carry out this task at the highest possible level. These are large facilities approaching 1 MW. We have already implemented such turnkey investments, such as MEW Dziećmiarowice, where there is 840 kW of installed capacity. But we also performed many other projects at SHP - their modernization, renovation, installation of new turbine sets, construction of weirs, grate cleaners, and all fully automated - says Konrad Wawrzykowski, CEO Wodel.

An important issue that should be noted is the long-term cooperation of Wodel with the Gdańsk University of Technology, and now the Institute of Fluid-Flow Machinery of the Polish Academy of Sciences.

- In the company, we perform MES and CFD analyzes that show us the way in design. CFD simulation gives a certain picture, but it cannot be fully relied on. In order to be absolutely sure as to the solutions used, it is absolutely necessary to perform energy tests and possibly cavitation tests on a laboratory stand. Bench tests are a much more expensive solution than CFD analysis, which is why few companies decide to do it, but we, having been on the market for 36 years, would not risk using a turbine solely on the basis of computer analysis - adds Wawrzykowski.
In Dobroszów, Kaplan water turbines with a rotor diameter of 2100 mm and the speed factor ns 650 were selected. These are the best selected turbines for the hydrological conditions prevailing on this section of the river. Anyway Kaplan 2100 turbines are proven turbines.
 - Bigger turbines are not manufactured in our country. Kaplan 2100 is fully tested. CFD analyzes and model tests on the stand were performed. We have already made a dozen or so of such turbines, their efficiency and failure-free operation has already been confirmed - said Wawrzykowski.
The power plant in Dobroszów will be a maintenance-free, fully automated facility.
The SCADA IT system, which supervises the course of the production process, will supervise the operating parameters of the turbine sets. The system collects current data (measurements), visualizes them, controls the process, alerts (information is immediately sent to the phone, tablet) and archives the data.
Such a solution is used in all power plants to which Wodel supplies complete turbine sets. The turbines are compatible with each other. What does it mean? Suppose there is more water in the river, the efficiency of the first turbine begins to decline. If it reaches a given value, then turbine no. 2 is activated, then the third one, etc. This allows for the maximum use of the watercourse potential.
In Poland, the construction of a new power plant is rare. Highly developed countries, such as Norway, produce 100 percent. energy from renewable sources. Poland is still far behind. Of pure renewable energy, it actually only has a dozen or so percent.
- Run-of-river power plants are the best solution for producing energy from renewable energy installations, because it is the most predictable and stable source. The amount of flowing water changes over a long unit of time, which cannot be said of the sun or wind. In addition, thanks to the construction of the power plant, the river beds are well-kept, and the water is constantly cleaned and oxygenated. The so-called small retention, which is good for flora and fauna - emphasizes Wawrzykowski.


Przedsiębiorstwo Budowy i Eksploatacji
Elektrowni Wodnych WODEL Sp. z o.o.

ul. Piłsudskiego 40
67-100 Nowa Sól
+48 501 302 648 +48 501 542 942 wodel@wodel.pl