SoliTek, Northern Europe’s largest solar module producer, is hosting one of HAVEN’s key demonstrators in Lithuania. By integrating the Hybrid Energy Storage System (HESS) into its multi‑purpose building, SoliTek is showing how hybrid storage can work alongside solar PV, geothermal systems, and EV charging to create smarter, greener buildings.

What’s the main role of SoliTek in HAVEN?

SoliTek leads the demonstration of HAVEN’s hybrid energy storage system in a real building environment. Its headquarters in Lithuania serve as a living laboratory, where the HESS is integrated with solar panels, geothermal heating, and EV charging infrastructure. This demonstrator allows SoliTek to test how hybrid storage can balance building energy demand, increase renewable self‑consumption, and provide flexibility to the grid.

In addition, SoliTek contributes to defining use cases, evaluating converter topologies, and specifying interfaces between batteries and power electronics. By combining its expertise in sustainable solar manufacturing with hands‑on demonstration, SoliTek ensures that HAVEN’s solutions are not only technically advanced but also practical and market‑ready.

Q2. What are the main challenges SoliTek may face in the project?

For SoliTek, the main challenge is proving that hybrid energy storage can deliver consistent value in a real building environment. Unlike controlled lab conditions, buildings face fluctuating demand, variable renewable generation, and the complexity of integrating multiple technologies.

Another challenge is ensuring that the demonstrator provides insights that can be scaled to other buildings and markets. This means validating not only the technical performance of the HESS, but also its economic viability and contribution to sustainability goals. By addressing these challenges, SoliTek is helping HAVEN show how hybrid storage can become a cornerstone of the energy transition.

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