The topic of this bachelor thesis is the Heating Plant Mydlovary. Especially optimization of its flow and chaining the power sources regards to the financial rationalization. The main focus is on flow of co-generation unit TEDOM Quanto D1200, which is product of Tedom s.r.o. Heating plant also consists of two warm water boilers Kotad 800 (thermal output 5,44 ) and Babcock Wanson BWN 150 with the maximum thermal output 8,0 . This heating plant is located in South Bohemia, close to town Zliv. Zliv is supplied by heat by the Heating Plant Mydlovary. Most of the houses in the city is connected in the district heating system. Whole heating plant is property of company E.ON Trend s.r.o