Poland uses only 25% of its potential for hydropower. We still underestimate the importance of water as a source of energy – believes Prof. Robert Kasperek from the Institute of Environmental Engineering at UPWr. – And increasing the share of hydroelectric power by even a few percent would improve the country's energy security.
https://upwr.edu.pl/en/news/hydropower--clean--cheap-and-stable-443.html
