Our company was established far back in 1961, under the name of Operation Unit for Design Engineering and Construction within what was then called the Company for Transmission of Electric Power „ELEKTROISTOK“, which was then an integral part of the Joint Serbian Power Company (Združena Elektroprivreda Srbije). Operation Unit within Elektroistok dealt with reconstruction and expansion of the existing substations of the power transmission network of the Republic of Serbia, under the limited conditions. The field of activities of the subject department mostly consisted of designing, constructing and assembling of steel structures of substations and electrical assembly works within the reconstruction of the existing and construction of new substations within the power transmission grid of the Republic of Serbia. Together with the teams for maintenance and overhauling established within Elektroistok, the Engineering and Construction Working Unit also participated in performing larger overhauls and emergency.
The realization of the program of construction of the 110 kV transmission grid of the Republic of Serbia, which was typically marked by short preparation period and frequent irregular supply of materials and equipment, imposed the need for this Operation Unit to take on itself the construction of new substations. This task was undertaken with extreme seriousness, and with the construction of new 110/35 kV substations, new successes started to emerge.
The successful construction of high voltage switchyards was also contributed to by the fact that these works, performed mostly by young experts working in the Engineering and Construction Working Unit, were supported by experience, at all levels of Elektroistok power company.
By the beginning of 1969, the Operation Unit for Engineering and Construction took over the works within the construction of 400/200 kV substation Belgrade 8, with installed power of 2x400 MVA. Putting this first transformer station of highest voltage in the former Socialist Federal Republic of Yugoslavia into operation provided valuable experiences.
By the end of 1973, the Operation Unit for Engineering and Construction was constituted as OOUR (basic cumulative working organization), at which time the Design Bureau was taken out as a separate organizational unit.
Aware of the fact that proper construction of power plants and facilities can only be done with high quality of works applied, with strict obeying of norms and utilization of past experiences, the operational part of the Operation Unit for Engineering and Construction working in tight cooperation with a number of design organizations started exchanging experiences in the assembling part of the works and working on the standardization of designs and equipment.
For construction sites undertaken, the Engineering OOUR typically produced working and workshop documentation, which allowed for frequent parallel and coherent designing, construction, equipment assembling and its practical testing.
Between 1972 and 1978 the Engineering OOUR completed and put into operation 26 new transformer substations in the Elektroistok high voltage grid, the most prominent ones being:
- SS 400/220/110 kV Niš 2
- SS 400/220/110 kV Novi Sad 3
- SS 400/110 kV Kragujevac 2
- SS 400/220 kV Kosovo „B“
With over 50 years of experience working in the construction, reconstruction, overhaul and maintenance of up to 400 kV high voltage power plants and facilities, we have become a recognizable name in the electrical power market of the entire region with strong references.
Within the process of transformation of the Serbian Power Companies, and through the resolution passed by the Management Board of Elektroistok Public Company and the Government of the Republic of Serbia, as of June 2005 we have continued to operate as an independent company under the current name Privredno Društvo „ELEKTROISTOK – Izgradnja“, d.o.o. Beograd.
With our 170 employees divided into two organizational parts located in Belgrade and Niš respectively, we represent an important link in the chain of development of the power transport network in our country.
