Concrete Substations HEKA

HEKA C CSS units are manufactured from reinforced concrete up to 160 mm thick, ensuring exceptional durability and resistance to demanding environmental conditions. Designed to transform voltages from 6–36 kV down to 0.4–1 kV, they provide versatile solutions for a wide range of electrical distribution applications.

Delivered as fully integrated turnkey systems, HEKA C CSS is engineered to meet the evolving needs of diverse end users. While utility companies remain the primary customers, these substations are also widely adopted by organizations requiring new or expanded medium-voltage grid connections.

Typical applications include:

• Industrial facilities such as manufacturing plants and logistics centers
  
• Renewable energy projects, including solar parks and battery energy storage systems (BESS)
• EPC firms managing large-scale infrastructure projects
• Real estate developers building residential or commercial zones requiring grid access
• Electrical wholesalers seeking standardized, reliable solutions

Configurations available:

• Outdoor substations: Delivered as a single unit, operated externally
• Indoor substations: Operated from within the enclosure, consisting of two elements—the enclosure and a cable cellar installed beneath it

Most HEKA C CSS products are type-tested in accordance with IEC 62271-202, ensuring compliance with international standards and dependable performance in diverse operating environments. Additional benefits include customizable design, short lead times, strong production capacity, and proven references from major utilities in Scandinavia and Estonia.