Nové Komořany (Green Mine project) - Future of the site

Green Mine project brings the coal site back to people and nature


About the project

Our goal is to return the former coal site to future generations in better condition than when the mining took it over.

In connection with Europe’s transition from conventional coal-based energy to renewable energy, Sev.en Group is preparing an integrated project for the ČSA surface mine, the main objectives of which include:

Energy use through the construction of an energy park, including, among other things, a complex of floating, land-based and other types of photovoltaic power plants, a pumped-hydro storage power station, and the connected production of hydrogen and a storage system;

Economic and social use of the area including, among other things, the development of zero-carbon residential areas featuring the  opportunity to develop a specifically profiled hi-tech industrial zone, including additional related activities;

Environmental and socio-cultural use of the area, including landscaping activities.


Dear visitor, we want to introduce you The Komořany Lake in the version for the 21st century


The Komořany Lake area as a perfect place to work and live in

ico1 over

new jobs

600 MW

potential in the photovoltaic power plants’ installed capacity, i.e. more than one unit of the Dukovany nuclear power plant

ico5 a stretch of land over
45 sq km

the comprehensive and meaningful use of which the Green Mine project is bringing

ico3 up to
236,000 tonnes of CO2

potentially saved per year thanks to green electricity generation sources

ico6 up to
2,891 tonnes of H2

produced from green electricity per year; this amount will fill the tank of a hydrogen bus up to 145,000 times, with one tankful covering almost 300 km


The Komořany Lake story

The Komořany Lake was most likely formed approximately 15,000 years ago as a shallow open lake in the foothills of the Ore Mountains. The area of the Komořany Lake was at least 5,600 hectares, which is more than, for example, today’s Lipno Reservoir.

Although its area shrank over time due to silting and vegetation growth, as late as the 17th century the well-known Czech writer Bohuslav Balbín described it as the largest lake in the Kingdom of Bohemia. As late as the 19th century, theKomořany Lake had an area of 195 hectares.

In 1831, Prince Ferdinand of Lobkowicz ordered its complete drying, which took place later. In 1873, the first brown coal mines were opened in the area. The last remains of the lake sediments were removed at the end of the 20th century.

The development of the Komořany Lake area over the centuries

3D control