Lake planned after the ČSA mine in Czechia is exhausted will not need topping up

Mining is being phased out at the ČSA mine in the Most region. Coal mining is expected to end at the turn of 2025 and 2026. The residual pit will be transformed into a lake with a so-called balanced water level, meaning it would not need to be topped up. Eva Maříková, spokesperson for the Sev.en Energy group, told the Czech News Agency (ČTK).

According to published plans, the lake could cover around 670 hectares (roughly twice the size of nearby Lake Most). A balanced water level means that inflows and evaporation would be in equilibrium. „Expert studies have assessed this as the best option. It will also create an excellent water reserve for the region,“ Maříková said.

The lake will be used partly for recreation, as are other lakes created after brown coal mining, namely Milada near Ústí nad Labem, Medard near Sokolov and Most. Its main purpose, however, will be to serve the energy sector. The mining company plans to install floating solar panels and a green hydrogen production plant on part of the lake. Other modern energy technologies are also planned for suitable areas around the lake. „Our aim is to create a diverse area at the ČSA mine site, with high added value and a wide range of uses, bringing not only nature but also people back to it. A network of cycle paths and an educational trail are already in place in the area,“ Maříková said.