The Czech Republic, due to its geographical position and climate conditions, is not optimal for utilising intermittent renewable energy. That’s why many renewable energy projects focus on utilising biowaste and biomass. These renewable energy resources have a great potential. However, they must be used responsibly towards the environment to avoid loss of biodiversity and soil degradation. The municipality of Knezice in the Czech Republic is renowned for its achievements in the area of energy sustainability as it is almost self-sufficient by producing heat and electricity from biomass and biowaste. The municipality become one of the pilots projects in energy sustainability pro producing electricity, heat and certified fertilisers from bio and renewable resources. They utilise mainly bio waste from agriculture, food industries and households.