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Assessment of the Impact of Flow Changes and Water Management Rules in the Dam Reservoir on Energy Generation at the Jeziorsko Hydropower Plant

Author

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  • Bogumił Nowak

    (National Water Holding Polish Waters, Regional Water Management Board in Poznań, Chlebowa 4/8, 61-003 Poznań, Poland
    Institute of Meteorology and Water Management—National Research Institute, Podleśna 61, 01-673 Warszawa, Poland)

  • Anna Andrzejak

    (National Water Holding Polish Waters, Regional Water Management Board in Poznań, Chlebowa 4/8, 61-003 Poznań, Poland)

  • Grzegorz Filipiak

    (National Water Holding Polish Waters, Regional Water Management Board in Poznań, Chlebowa 4/8, 61-003 Poznań, Poland)

  • Mariusz Ptak

    (Department of Hydrology and Water Management, Adam Mickiewicz University, Krygowskiego 10, 61-680 Poznań, Poland)

  • Mariusz Sojka

    (Department of Land Improvement, Environmental Development and Spatial Management, Poznań University of Life Sciences, Piątkowska 94E, 60-649 Poznań, Poland)

Abstract

This paper presents the impact of flow changes in the Warta River and water management rules regarding the Jeziorsko dam reservoir on the energy production by the hydropower plant in the period 1995–2021. The Jeziorsko dam reservoir was built in 1986. It is the second largest dam reservoir in Poland in terms of surface area. In 1994, a hydropower plant with an installed capacity of 4.89 MW started operation. The study results show the average annual energy production from 1995 to 2021 at a level of 18,718 MWh. On the other hand, energy production largely changed from year to year, from 12,432 MWh (in 2019) to 26,916 MWh (in 2001). The droughts that have occurred in the Warta River basin over the past two decades have had a major impact on energy production. As a consequence of the drought, it was not possible to maintain the required water level in the reservoir. Moreover, a change in the rules for the reservoir’s management that led to lower water levels in the reservoir by 1.5 m between April and June was important from the point of view of energy production. Improving the efficiency of energy production requires changing the rules of water management in the reservoir. More flexible reservoir operation schemes should be considered, including operational management based on meteorological and hydrological forecasts. Moreover, other criteria should also be considered, such as maintaining environmental flows, ensuring protection from flooding, and operating a nature reserve around the reservoir.

Suggested Citation

  • Bogumił Nowak & Anna Andrzejak & Grzegorz Filipiak & Mariusz Ptak & Mariusz Sojka, 2022. "Assessment of the Impact of Flow Changes and Water Management Rules in the Dam Reservoir on Energy Generation at the Jeziorsko Hydropower Plant," Energies, MDPI, vol. 15(20), pages 1-19, October.
  • Handle: RePEc:gam:jeners:v:15:y:2022:i:20:p:7695-:d:946136
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    References listed on IDEAS

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    Cited by:

    1. Mariusz Sojka & Mariusz Ptak & Joanna Jaskuła & Vlerë Krasniqi, 2022. "Ecological and Health Risk Assessments of Heavy Metals Contained in Sediments of Polish Dam Reservoirs," IJERPH, MDPI, vol. 20(1), pages 1-20, December.

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