Finnish cleantech firm TheStorage has successfully closed a €3.6 million seed funding round to advance its industrial energy solutions. The round, led by deep tech investor Voima Ventures, will support the company's mission to decarbonize industrial heat production. TheStorage utilizes a unique thermal energy storage system that stores energy in sand, offering a sustainable alternative to fossil fuels.
A New Approach to Industrial Heat
Industrial heat production remains one of the most challenging sectors to decarbonize, with a heavy reliance on fossil fuels. The increasing volatility in energy markets and the intermittent nature of renewables create significant hurdles for companies seeking sustainable alternatives. This environment has intensified the demand for innovative solutions that can provide stable, low-carbon energy at a competitive cost.
TheStorage addresses this challenge by storing energy in sand, allowing industrial operators to electrify their heat processes effectively. This technology enables companies to harness renewable energy when it is abundant and cheap, releasing it as needed for production. The system can reduce energy costs by up to 70 percent and cut emissions by as much as 90 percent compared to traditional methods.
Innovative Technology and Grid Integration
At the core of the company's offering is its proprietary "sand-in-motion" technology, which provides a significant competitive advantage. CEO Timo Siukkola states that this system delivers heat transfer up to ten times more efficiently than static alternatives on the market. This high efficiency eliminates the need for a "green premium," making the transition to sustainable energy economically attractive for industrial clients.
Beyond direct cost and emission reductions, the solution offers additional financial incentives for its users. The technology allows industrial companies to participate in grid balancing and reserve markets, contributing to overall grid stability. This capability opens up new revenue streams, further strengthening the business case for adopting thermal energy storage.
Strategic Growth and Investor Outlook
The investment from Voima Ventures underscores strong confidence in the company's potential to drive significant change. Pontus Stråhlman, a partner at the firm, noted that TheStorage is at the center of two major transitions: industrial decarbonization and renewable energy integration. He emphasized that the technology delivers clear value to customers and has excellent potential for global scaling.
With the new capital, TheStorage plans to accelerate its commercialization efforts and expand its operational capacity. The company aims to double its team by the end of 2026 to support its growth and further develop its technology. This strategic expansion is designed to position TheStorage as a leading choice for industries seeking to meet their sustainability and cost-management goals.
This €3.6 million seed funding marks a pivotal moment for TheStorage, providing the necessary resources to scale its innovative solution. The company is now well-positioned to help industries transition away from fossil fuels while enhancing their economic competitiveness. As the global push for decarbonization accelerates, TheStorage's sand-based thermal storage technology represents a critical tool in building a more sustainable industrial future.

