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Extension of the Paldiski 110kV substation


Civil engineering

Energy supply

Concrete works


Description of work




The existing 110kV external switchyard of the Paldiski substation was supplemented with a new 110kV and 20kV cell. In the scope of the project, a new transformer bath with an oil separation system was built, the transformer delivered by Elektilevi was connected, and a defense automation solution was built. The substation territory was increased by approximately 1,200 m² to enable prospective extensions.

On 1 July 2021, Merko Ehitus Eesti acquired a stake in Connecto Eesti, and the Merko electrical construction business line merged with Connecto. Acting jointly under the Connecto brand makes it possible for us to offer a significantly broader range of services – in addition to the design, construction and maintenance of low, medium and high voltage electricity networks, Connecto also operates in the field of telecommunications and gas networks.

View the works performed by Connecto.

Elering AS and Elektrilevi OÜ
Name of the project:
Extension of the Paldiski 110kV substation
Energy supply
Type of construction:
AS Merko Infra and AS Merko Ehitus Eesti
Description of work:
New building
Sadama str 40, Paldiski, Harjumaa
Beginning of the project:
Year of completion:

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