The development of a completely new energy source can only succeed through the collaboration of bright minds from the fields of science, technology, and entrepreneurship. At HEIONTEC, people work together who share a common vision: to make ambient heat accessible as a reliable, sustainable, and self-sufficient source of electricity.
Economical
HEIONTEC power applications do not require a conventional energy source and therefore do not incur any running costs. Once installed, these systems produce electricity continuously at room temperature - free of charge and permanently.
Sustainable
HEIONTEC dispenses with fossil materials in production and operation. Short distances and a high recycling rate make the technology a forward-looking solution for more sustainable energy generation.
Independent
HEIONTEC cells only require ambient heat to generate electricity. This enables a self-sufficient supply for devices that previously relied on batteries or cables.
The intelligent use of thermochemical reactions for self-sufficient energy supply represents a real technological leap forward.
Prof. Dr. Jens Bockstette
Professor of Energy Conversion and Storage, Düsseldorf University of Applied Sciences
As an engineer with many years of experience in electronics development, I find HEIONTEC's technology extremely exciting—an innovative approach with great potential for sustainable energy generation and new applications in the electronics sector.
Christian Hayer
Investor & CEO Steinbeis Embedded Systems Technologies GmbH
News
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01/04/2026 -HEIONTEC establishes US subsidiary to strengthen research and market entry in North AmericaRead MoreHEIONTEC continues its international growth course and has established its own US subsidiary. With this step, the company is strengthening its presence in one of the world's most important technology and energy markets and creating the structural basis for research partnerships, pilot projects, and future commercialization in North America.
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12/28/2025 -Technical milestone: First functional HEIONTEC button cell batteryRead MoreHEIONTEC has reached a key technological milestone: for the first time, a fully functional button cell based on its proprietary TEC-G technology has been manufactured and successfully tested in the laboratory. This means that an independently produced, standardized cell format is now available, which forms the basis for performance validation, long-term measurements, and preparation for pilot production.
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12/11/2025 -New HEIONTEC FAQ: Why we are publishing our own scientific clarification documentRead MoreAs our TEC-G technology becomes more visible, we are increasingly receiving reviews and comments generated by generic AI systems such as ChatGPT, Claude, or Gemini. At first glance, these AI-based assessments seem plausible—but when it comes to innovative technologies, they are often way off the mark.
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11/28/2025 -HEIONTEC at the Renewable Energy Pitch NightRead MoreAn inspiring evening at hubraum Berlin during the “Renewable Energies” Pitch Night: HEIONTEC presented its TEC-G technology (“electricity from ambient heat”) (pictured: founder & CEO Andreas Heine) and held numerous valuable discussions with investors, experts, and the team from StartUp SH.
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11/14/2025 -Düsseldorf University of Applied Sciences confirms the function of HEIONTEC TEC-G cellsRead MoreDüsseldorf University of Applied Sciences (HSD), under the direction of Prof. Dr. Jens Bockstette, has investigated the electrical properties of our cells in a series of independent measurements. The results are clear: HEIONTEC cells behave in accordance with the characteristics of thermo-electro-chemical generator cells (TEC-G).
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11/05/2025 -HEIONTEC and SPC plan to develop a first device using HEIONTEC technologyRead MoreHEIONIT GmbH and Smart Product Concepts Limited, Hong Kong, have agreed to collaborate on the planning and implementation of an initial device featuring HEIONTEC's proprietary TEC-G technology. SPC is an international development and production partner that supports companies from the product idea to market launch, with many years of expertise in design, manufacturing, sales, and IoT solutions.
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10/31/2025 -Energy security starts small – with every autonomous cellRead MoreEnergy is the foundation of modern societies – and has long become a geopolitical power factor. Crises, conflicts, and market disruptions have revealed how vulnerable global energy systems are: supply gaps, rising prices, increasing import dependencies, and immense pressure to decarbonize.
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10/23/2025 -HEIONTEC InvestmentRead MoreMore than €100,000 crowdfunded in just one week on FunderNation!
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10/16/2025 -Launch of a digital financing roundRead MoreHEIONTEC launches crowd investing on FunderNation – market leader in digital corporate financing for deep tech and technology companies! We are excited to take the next step together towards industrialization, market entry, and global scaling.
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10/14/2025 -Funding for the ZIM feasibility studyRead MoreWe are delighted to announce that HEIONTEC is now officially receiving funding for a ZIM feasibility study!
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08/25/2025 -HEIONTEC International: US establishment in preparationRead MoreProf. Dr. Jochen Lauterbach, Smartstate Endowed Chair for Strategic Approaches to the Generation of Electricity (SAGE) at the University of South Carolina, and Kater Heine, CEO of HEIONTEC, are laying the foundation for a research collaboration with the aim of further optimizing the technology and tapping into the US market.
More information will follow soon – stay tuned!
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07/17/2025 -HEIONIT GmbH expands research team with Dr. Peter Commer as Research ScientistRead MoreHEIONIT GmbH, a leading company in the field of sustainable energy generation and resource utilization, is pleased to introduce Dr. Peter Commer as a new member of its team.
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06/26/2025 -Electricity without cables and batteries: HEIONIT and Düsseldorf University of Applied Sciences develop a low-energy harvesting demonstratorRead MoreHEIONIT GmbH and the Düsseldorf University of Applied Sciences have agreed on a joint research cooperation to develop a demonstrator that generates electricity exclusively from ambient heat - for the first time without a temperature gradient.
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04/04/2025 -HEIONIT GmbH strengthens its team with patent attorney and chemist Dr. Frank SchneiderRead MoreOur team is growing: we warmly welcome Dr. Frank Schneider!
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03/27/2025 -Katharina von Heydebreck is the new Chief Marketing Officer at HEIONIT GmbHRead MoreOur team is growing: we warmly welcome Katharina von Heydebreck as our new CMO!
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02/20/2025 -Fraunhofer Institute on the topic of “Thermoelectrics: converting waste heat into electricity”Read MoreAn article by the Fraunhofer Institute on the use of waste heat with the help of THERMOELEKTRIK is well worth reading.
