International technology group ANDRITZ, in partnership with Slovak engineering firm VUJE, has been awarded a contract by VODOHOSPODARSKA VYSTAVBA to modernize the Gabcikovo hydroelectric power plant on the Danube River. This facility is Slovakia's largest hydroelectric plant and a critical component of the national energy grid, supplying approximately 10% of the country's electricity. The comprehensive upgrade aims to secure long-term, reliable, and sustainable power generation.
The project involves the renewal and modernization of the plant's electromechanical equipment, which currently has a total capacity of 720 MW. The order value is in the mid three-digit million-euro range and has been included in ANDRITZ's order intake for the third quarter of 2026. The modernization will gradually refurbish the eight Kaplan turbine-generator units to the latest technical standards, improving efficiency and availability while extending the service life of key equipment by at least 30 years.
The scope of supply includes model testing, engineering, manufacturing, installation, and commissioning. It also covers modernization of turbine and generator components, automation systems, excitation, protection, and control systems, as well as the renewal of transformers and auxiliary electrical systems. The work will be carried out sequentially to minimize disruptions and maintain the plant's availability during the modernization process.
This investment is vital for Slovakia's energy infrastructure. As the country transitions to more sustainable energy sources, upgrading existing hydroelectric capacity is a cost-effective way to boost renewable energy output and reduce reliance on fossil fuels. The Gabcikovo plant plays a crucial role in balancing the grid, especially with the increasing integration of intermittent renewable sources like solar and wind. By enhancing the plant's efficiency and reliability, the modernization supports Slovakia's energy security and its commitments to reduce carbon emissions.
ANDRITZ brings extensive experience in hydropower modernization, having completed numerous projects worldwide. With over 185 years of innovation and more than 492 GW of installed capacity, the company is well-positioned to deliver this complex upgrade. The partnership with VUJE, a leading Slovak engineering firm, ensures local expertise and smooth execution. The project also aligns with ANDRITZ's commitment to enable the green transition through sustainable solutions and advanced digitalization.
For Slovakia, this modernization is not just about maintaining current capacity but also about future-proofing the energy system. The refurbished turbines and generators will operate more efficiently, potentially increasing output without additional water usage. This is particularly important in the context of climate change, which may affect water availability in the Danube. By extending the plant's operational life, Slovakia can continue to rely on clean, renewable energy for decades to come, contributing to the stability of the regional power grid.
In summary, the Gabcikovo modernization is a strategic investment that underscores the importance of upgrading aging hydropower infrastructure to meet future energy demands. It will ensure that Slovakia can continue to produce clean electricity reliably, supporting both economic growth and environmental sustainability.
