About company

Electrotechnical holding ERSO is a leading enterprise in the energy sector, focused on complex equipment and implementation of new construction projects, reconstruction and modernization of energy facilities.

Holding ERSO was created on the basis of “Elektrozavod” enterprises by the decision of Sistema Public Joint Stock Financial Corporation. The holding includes a design bureau, service and testing centers, advanced laboratories and production sites, including Elektrozavod in Moscow and Ufa Transformer Plant in the Republic of Bashkortostan.

ERSO is a synergy of historical traditions, centuries-old experience, extensive scientific base and innovative solutions. The holding's plants participated in equipping powerful hydroelectric power plants, thermal and nuclear power plants that connect the energy systems of Siberia, the Urals, the European part of Russia and Eastern Europe. The enterprise supplied electric devices for the Magnitogorsk, Taishet, Verkh-Isetsky plants, created transformer and reactor equipment for the Cherepovets Metallurgical Plant.

The holding has the status of an official supplier for the nuclear industry. ERSO is the main manufacturer of shunt reactors for high voltage transmission lines. The holding's specialists have unique competencies in the production of electric furnace transformers. ERSO occupies a leading position in Russia in terms of the rated power of manufactured transformers - more than 50 thousand MVA. The product line includes more than 3.5 thousand units of transformer and reactor equipment with voltage from 0.5 to 1150 kV, power up to 630 MVA.

ERSO provides maintenance services for power electrical equipment of its own and foreign production throughout the entire period of operation.

The company provides a personalized approach to each customer. “ERSO TRANSFORMER SOLUTIONS“ employs experienced specialists in designing a wide range of electrical products.The team develops integrated solutions for the design, manufacture and supply of power supply systems for energy and industrial facilities, including low-voltage and high-voltage equipment, complete switchgears.

The holding has resumed the production of its own secondary electrical equipment and is expanding its product line on the basis of the “ELECTROAPPARAT“ enterprise.

ERSO implements projects for the construction of infrastructure and energy facilities from the organization of engineering surveys to the supply of equipment and its launch. Projects in the field of EPCM are carried out by the specialized design institute “MOSSPETSPROEKT“.