Estonia

  • Jõhvi-Ida 35/6 kV substation

    The Jõhvi-Ida 35/6 kilovolt regional substation is a key hub in Ida-Viru County’s power grid, which each year conveys about 28,600 MWh of power. The substation supplies electricity to more than 2,200 customers – close to one-third of the Jõhvi city’s households and companies, including the Jõhvi Concert Hall, Viru Prison, Eesti Energia’s technology units …

  • Shopping Centre Paepargi Maxima

    The sales floor at Paepargi Maxima XX supermarket is 1,715 m² and the product selection amounts to more than 20,000 different products. The supermarket is in a logistically convenient location, among other things it is easily accessible from Laagna tee – the main artery of the city district – for both the current residents and …

  • Reconstruction of water treatment plant of Meriküla

    The modern Meriküla waste water treatment plant in Muraste, a residential community in Harku municipality, ensures the households in the growing area with the required level of service. Thanks to the new plant, the water routed into Kakumäe Bay is significantly cleaner and meets the requirements of efflux set forth in the permit for special …

  • Paepargi pedestrian bridge

    The Paepargi bridge is 75 m long and 3 m wide. The weight of the bridge is supported by steel-pipe pylons, steel girders and a concrete walkway poured between them, supported by four pairs of steel cables. More attention than usual was devoted to architecture, and in cooperation with the structural engineer, the technically critical …

  • Renovation of the substations of Tallinn’s tram line no. 4

    Complete renovation of traction substations nos. 1, 3, 4, 9, 16 and 19 located in Tallinn. Delivery, installation and configuration of new 6 kV AC switchgear, 600 V DC switchgear, inverters and protection/telemechanics equipment. On 1 July 2021, Merko Ehitus Eesti acquired a stake in Connecto Eesti, and the Merko electrical construction business line merged with Connecto. …

  • Connecting the Roheline Elekter AS wind farm at the Estonia 330kV substation

    The goal of expanding the fully renovated Eesti 330 kV substation was to establish a connection point for connecting the Roheline Elekter AS wind farm. One 330 kV bay was designed and constructed in the framework of the contract. The construction work took place while the substation is on-line; thus great emphasis was laid on …

  • Electrical engineering and construction of the internal grid for Osula pellet factory

    For the electrical consumption needs of the largest granule factory in the Baltics – completed in 2014 and having launched production in 2015 – Merko designed and built the necessary electrical systems from the distribution grid’s connection point up to the factory’s main electrical cabinets. The plant’s key equipment are fed by four 10/0.4 kV …

  • Tuvi apartment buildings

    The apartment buildings in Tuvi Street, Tallinn, featured a totally new look and style, similar to that of the suburbs of Helsinki. There are 96 apartments in the 8-storey building and the entire block was designed as an integral whole, where the three buildings are connected by an underground car park and the shared courtyard …