E-houses and Technical Buildings
E-House systems from Harju Elekter are built for customers who value fast, plug-and-play deployment and reliable performance in real operating conditions. Delivered as fully assembled mechanical and electrical units, our prefabricated E-Houses and Technical Buildings enable quick commissioning and smooth integration into power distribution and industrial environments.
These solutions serve a wide range of sectors, including electrical grid operations, data centers, renewable energy, mining and railway infrastructure. Depending on project needs, each electrical house, power house container or equipment shelter can be tailored with customer-specific systems such as heating and cooling, fire safety solutions or remote monitoring. The result is a technical building that supports critical equipment, protects operations and helps projects move forward with confidence.
With more than 15 years of experience, Harju Elekter has delivered E-House systems and modular technical buildings that protect vital equipment across power grids, railway infrastructure, data centers and other critical applications. Built for fast deployment and long-term reliability, these prefabricated solutions help customers commission infrastructure efficiently and keep operations running without unnecessary delays.
Our delivery process is designed to feel clear and worry-free. It includes close consultation during design, factory assembly and factory testing before the unit arrives on site. This approach shortens installation time, reduces downtime and supports smooth project handover from planning to commissioning.
Below you can explore our E-House systems and technical buildings designed for fast deployment and reliable performance.
Our delivery process is designed to feel clear and worry-free. It includes close consultation during design, factory assembly and factory testing before the unit arrives on site. This approach shortens installation time, reduces downtime and supports smooth project handover from planning to commissioning.
Below you can explore our E-House systems and technical buildings designed for fast deployment and reliable performance.
Technical Buildings
EasyFLEX
EasyFLEX is Harju Elekter’s lightest technical building solution, designed as a compact and flexible modular technical building for fast deployment. Its size range covers everything from small equipment shelters (1.5 m x 1.5 m) to medium-sized prefabricated technical buildings (12 m x 2.7 m), making it easy to handle, transport and install.
Built for telecommunications and railway infrastructure applications, EasyFLEX provides ready-to-use, safe and practical housing for critical equipment. The result is a portable technical building that protects sensitive systems, supports reliable operation and simplifies on-site work.
More details about EasyFLEX
CombiFLEX
CombiFLEX is mid-to-heavy duty technical building solution, built for larger installations and heavier equipment. Compared to EasyFLEX, it offers a stronger structure, increased space and higher load capacity, making it a popular choice for E-House systems and demanding technical building applications.
Designed for customers in the energy, industry and infrastructure sectors, CombiFLEX provides durable, prefabricated housing for complex electrical and mechanical equipment. The result is a modular technical building that protects critical systems, supports safe operation and helps projects move forward with confidence.
More details about CombiFLEX
SteelFLEX
SteelFLEX is most robust technical building solution, designed for very heavy equipment and harsh environments where durability and strength matter most. Built as an industrial technical building for demanding conditions, it provides reliable protection for critical systems and long-term performance on site.
To match different project requirements, SteelFLEX can be delivered as a modified sea container or as a fully custom-built container solution. This flexibility makes it an ideal choice for container technical buildings and heavy-duty equipment shelters used in infrastructure, energy and industrial applications.
More details about SteelFLEX
E-houses
Atlas
Atlas is Harju Elekter’s most durable containerized E-House, built for the heaviest equipment and the harshest operating conditions. Delivered as a welded steel electrical house, it is designed to withstand extreme loads, challenging weather and corrosion, providing long-term protection and reliable performance for critical power distribution equipment.
More details about Atlas
Helios
Helios is a versatile modular E-House system that combines strong protection with quick installation. Its panel-based design makes it easy to adapt for different project needs while ensuring reliable housing for critical equipment and power distribution systems.
A removable roof option allows large devices to be lifted in from above, simplifying installation and maintenance. This feature makes Helios a practical choice for prefabricated E-Houses and technical buildings where flexibility and efficient deployment are essential.
More details about Helios
Zeus
Zeus is Harju Elekter’s most compact E-House solution, designed for fast production and easy scaling when projects require multiple similar units. Its sheet metal structure and flexible modular design make it a practical choice for prefabricated E-Houses and compact electrical houses where speed and consistency matter.
Built for energy, transport and infrastructure applications, Zeus provides a space-efficient equipment shelter for housing electrical equipment and power distribution systems. The result is a reliable solution that simplifies deployment while protecting critical systems in everyday operating conditions.
More details about Zeus
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References
Electrical Distribution Building
Helios In 2025, Harju Elekter completed the design and construction of a building for electrical distribution equipment, including theinstallation of customer-supplied materials. Our product was…
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BESS Station for Stella Futura
CombiFLEX In 2024, Harju Elekter delivered a plug-and-play prefabricated E-house to Stella Futura for a battery energy storagesystem (BESS) project in central Sweden. Our product was used to enable grid-connected…
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Prefabricated Substation for E.ON Energidistribution AB
CombiFLEX To support the growing energy demand in the expanding district of Veddesta, northwest of Stockholm, Harju Elekter delivered a…
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