Finland's Largest Electrical Substation is Work of Art – ABL Supplies the Ceramic Facade
Project: Espoo Hepokorpi Electrical Substation
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Architect: Kivinen Rusanen Architects
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Ceramic Facade Solution: Fusion Glazing Dark Green Tiles
➡ Check out our Ceramic Facade Solutions

The facades of Espoo's Hepokorpi electrical substation are clad with fusion-glazed ceramic facade tiles, designed by Kivinen Rusanen Architects.
The new substation in Hepokorpi, Espoo, is an extraordinary project in many ways. Once completed, it will be Finland's largest electrical substation, serving multiple roles: ensuring energy security, powering a data center, and contributing to a process that utilizes the data center's waste heat for district heating production.
“The design of this substation required addressing and solving a variety of process-related elements, far more than in the design of a conventional substation,” explains architect Tuomas Kivinen of Kivinen Rusanen Architects.

Defined by Location and Landscape
The exterior of the Hepokorpi electrical substation is exceptionally striking. Its facade design was heavily influenced by the location and surrounding landscape.
“Hepokorpi substation is situated in a wooded agricultural landscape. The forest's color palette and the site's topography inspired the architecture of the buildings,” explains architect Tuomas Kivinen.
The Hepokorpi area has been used for recreation, and the construction site is highly visible. The zoning plan required a high-quality facade, as the entire site is exposed to views from the major Kehä III highway.
“We shared a common vision for a high-quality solution with the client. When selecting the facade material, we carefully evaluated long-lasting and premium options, ultimately deciding on green ceramic facade tiles. The building’s facade is structured in a specific way, and ceramic proved to be an excellent choice for implementing the relatively complex facade design,” Kivinen notes.
Tailored Ceramic Facades for Unique Projects
Ceramic facades can be customized for each project, including shapes, colors, glazing, and dimensions. Kivinen emphasizes that color played a significant role in this project. In collaboration with ABL-Laatat, a facade solution was developed that met the project's requirements. The Fusion Glazing Dark Green tiles are distinctive and unique in their tonal variations.
“The green color needed to have a dynamic, lively variation, and, like in nature, it couldn’t be homogeneous,” Kivinen explains.
Kivinen notes an increasing trend in recent years of ceramic facades utilizing innovative techniques for color, glazing, and surface treatments. The construction of the Hepokorpi substation spans 2023–2025, with the installation of the ceramic facade starting in spring 2024.
“Collaboration with ABL-Laatat on designing the ceramic facade has gone very well. We’ve had productive discussions and gained valuable insights throughout the project,” Kivinen adds.


– Architect Tuomas Kivinen,
Kivinen Rusanen Architects
– Overall, the collaboration between all parties has been excellent. Credit goes to the client for strong project management, and thanks are also due to the other designers. The construction site has progressed well, and the installers have done a great job. Everyone is on the same page and committed to achieving a great outcome, Kivinen acknowledges.
A ceramic facade is an architecturally striking solution with a long lifecycle. ABL-Laatat offers comprehensive services for facade projects. Our selection includes products for new construction facade projects as well as renovation projects that respect the original architecture.
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