Nearly half of Romania's electricity output was generated by Soviet equipment, and the Piatra Neamt nuclear plant, the construction of which began in 1986, was expected to use mostly Soviet-supplied components. It was not until 1970 that domestic industry was able to manufacture steam turbines larger than 6 megawatts, but by the 1980s Romania was producing 330-megawatt steam turbines, hydraulic turbines of all sizes, boilers, nuclear reactor components, transformers, and other power-engineering equipment. By then Romania had become the largest foreign supplier of electric power transformers to the Soviet Union. The major power-engineering plants included the Bucharest Heavy Machinery Plant, the Resita Machine-Building Plant, and the Vulcan enterprise in Bucharest.

Data as of July 1989