1928 The first public power station in Obrenovac. It was powered by two diesel motors, with power of just over 100 kilowatts.
1955 Bogoljub Urošević Crni, the founder of Thermal Power Plants “Nikola Tesla” comes to the helm of the Electric Power Distribution of Serbia.
1956 Thermal Power Plant “Kolubara A” in Veliki Crljeni was commissioned, with two 32 megawatt turbo generators, then the biggest power capacity in Serbia. Today it is the oldest active plant in the system of the Electric Power Distribution of Serbia.
1959 Preparation of the study for the construction of Thermal Power Plant “Nikola Tesla A” began.
1960 TPP “Kolubara A” increased by additional 65 megawatts.
1961 Another 32 megawatt turbo generator of TPP “Kolubara A” was commissioned, and the total power was increased to 161 megawatts.
1965 Construction of TPP “Morava” near Svilajnac began, and 53 local and 9 foreign companies participated in this venture.
1967 On July twenty seven, works on the construction of Thermal Power Plant “Nikola Tesla A” began.
1969 Near Svilajnac, on the rim of the area of pit mines, a unit of Thermal Power Plant “Morava” was built with power of 125 megawatts.
1970 On March 7, the first unit of Thermal Power Plant “Nikola Tesla A” was commissioned, with power of 210 megawatts, and six months later the second unit on the same location.
1975 The name Thermal Power Plant “Obrenovac” was changed into Thermal Power Plants “Nikola Tesla”. It was decided to build TPP “Nikola Tesla B” (on the basis of studies prepared in 1972-1974).
1976 On September 10, Unit 3 of TPP “Nikola Tesla A” was commissioned, with power of 305 megawatts, which increased the total power to 725 megawatts.
1978. Construction of the first unit of Thermal Power Plant “Nikola Tesla B” began in spring. On June 8, Unit 4 TPP “Nikola Tesla A” was commissioned, with power of 308.5 megawatts which increased the total power to 1.033,5 megawatts.
1979 On September 10, Unit 5 of TPP “Nikola Tesla A” was commissioned, with power of 308.5 megawatts, and Unit 6 with the same power was commissioned on December 26, which amounted to 1,650 megawatts of installed power.
1981 Thermal Power Plant “Kolubara” reached its maximum annual production of 1.5 billion kilowatt hours.
1982 TPP “Morava” broke its record in the time spent on network during a year (7,053 hours).
1983 On November 3, the first unit of Thermal Power Plant “Nikola Tesla B” was commissioned, with power of 620 megawatts. Heat distribution line from TENT A too Obrenovac was built, used in distribution of 150 million kilowatt hours of heat for the heating of this town.
1985 On November 28, the second unit of Thermal Power Plant “Nikola Tesla B” was completed and commissioned, also with power of 620 megawatts. TPP “Nikola Tesla A” reached its then highest annual power production (10.3 billion kilowatt hours).
1988 Works on the construction of Thermal Power Plant - Heating Plant “Kolubara B” began. The plant was designed for annual production of 3.6 billion kilowatt hours of electric power and 1.7 billion kilowatt hours of heat- However, after a little more than three years the works were suspended because economic sanctions had been imposed on the Federal Republic of Yugoslavia.
1990 Thermal Power Plants “Nikola Tesla” A and B reached the highest annual production (19.470 gigawatt hours). That same year, the highest annual supply of coal for these two power plants (24.282.427 tons) was achieved. Thermal Power Plant “Kolubara A3” achieved the longest operation on network in a year (8.465 hours), and TENT B1 only a little less (8.404 hours).
1991 On December 20, pursuant to the decision of the Management Board of Electric Power Distribution of Serbia, Public Company Thermal Power Plants “Nikola Tesla” was created, combining TPP “Nikola Tesla” in Obrenovac, TPP “Morava” in Svilajnac, TPP “Kolubara” in Veliki Crljeni and TPP-TO “Kolubara B” (under construction). At that time it had 3,700 employees, and was one of the major pillars of Serbian energy industry.
1994 On December 25, Thermal Power Plants “Nikola Tesla” achieved the highest daily production in history (TENT A - 68.719 megawatt hours, TENT B - 62.570.000 kilowatt hours).
2002 TENT B1 achieved the longest continuous operating time (206 days, from October 15, 2001 to April 23, 2002). On February 16, the highest daily supply of coal into these two power plants in Obrenovac (67 trains, 102.404 tons) was recorded.
2003-2010 The period of extensive modernization of TENT. Funds in the amount of 450 million EUR were invested in revitalization and reconstruction of the plants, as well as in large environmental projects. This improved energy efficiency, reliability and availability of unit's.
2011 On November 24, the company signed the agreement on Japanese loan for the construction of the plant for desulfurization of flue gases, the biggest and the most expensive environmental project in thermal energy industry in the Balkans, worth over 250 million EUR. CE TENT exceeded the magic number of 20 billion kilowatt hours of electric power produced in one year.