The shift toward renewable energy is underway, but heating — especially in buildings, agriculture, and industry — remains one of the most costly and complex parts of the energy transition. Conventional thermal tanks are expensive, slow to charge, and difficult to integrate efficiently with solar, heat pumps, or industrial waste heat.
THERMOCUBE aims to change that. The startup has developed a radically simplified, cost-effective thermal storage system that dramatically cuts charging time and system costs — making heat transition projects more scalable and economically viable.
A Modular, Fast-Charging Thermal Tank System
THERMOCUBE’s technology relies on a clever combination of metal frames and plastic bags, forming compact thermal units. This design enables significantly faster charging — less than 4 minutes per cubic meter, compared to the industry standard of over 15 minutes — and slashes costs by more than 50%.
With predictive smart controls, the system integrates seamlessly into energy networks and provides grid stability benefits comparable to electric batteries — but at less than 5% of the cost.
Unlocking New Use Cases in Heating and Cooling
The startup is targeting a broad range of B2B applications: from district heating and industrial waste heat recovery to thermal solar systems, agricultural heat use, and cold storage. The potential addressable market in Europe alone exceeds €2.5 billion.
THERMOCUBE’s competitive edge lies not only in its speed and affordability but also in its adaptability across heating and cooling infrastructures — positioning it as a universal storage layer for the future of decentralized energy systems.
A Scalable Business Model with Strong Margins
The company’s revenues come primarily from tank system sales, supported by a lean and scalable production model. Many components and processes are outsourced to manufacturing partners, enabling rapid growth without heavy capital requirements.
With the first prototype completed, a granted EU patent, and market readiness for Germany underway, THERMOCUBE is preparing for its first financial round and EU-wide expansion.
Built by Experts in Renewable Energy and Engineering
THERMOCUBE is led by a team with deep expertise in automotive engineering and renewable energy systems:
- Gerhard , CFO and Sales – driving the financial and business strategy
- Roland, Sales
- Thomas , Head of Marketing – with a background in renewable energy and cleantech communications
- Development and Engineering Team – includes Dipl.-Ing. (FH) professionals with practical experience in scalable energy systems
This interdisciplinary team brings together market understanding, technical development, and commercialization experience — all focused on accelerating the energy transition.
Scaling Up for Europe’s Heat Revolution
THERMOCUBE is raising funding to develop its GEN 2 system (capable of operating at 80°C), expand automated production, and drive market entry across the EU. With high efficiency, rapid deployment potential, and a patent-backed product, the company is poised to become a critical enabler of decarbonized heat.
THERMOCUBE is not just another tank maker — it’s redefining thermal storage for the post-fossil future.
