Cartesian
What we do:
We reduce operational costs, investments and CO2 emissions for heating or cooling systems.
How:
By providing compact and scalable, plug-and-play thermal energy storage with minimal losses.
Based in Trondheim, Norway, our technology is designed to meet the various demands of modern buildings and district heating and cooling systems.
With partners and suppliers across Europe, we are committed to quality and integrity in everything we do, helping our clients build smarter, safer, and more sustainable energy solutions.
Our promise is precision, reliability, and efficiency at every stage.
The backstory
Our technology, Thermal Box, was developed by two of Cartesian’s founders through more than a decade of research at SINTEF, one of Europe’s largest independent research institutes. The technology was shaped through extensive lab work, testing, and optimisation, combining SINTEF’s scientific expertise with practical engineering and customer feedback. What makes the technology remarkable is its use of phase change materials (PCM), capable of efficiently storing heat or cold in a wide range of temperatures, with minimal losses. Thermal Box is now commercially deployed and in operation across different types of buildings, in several countries in Europe.
Today, Cartesian delivers thermal energy storage that makes commercial buildings and district heating systems more energy efficient and sustainable.
What sets our solution apart is its ability to integrate seamlessly with existing heating or cooling systems.
Our goal is to make it easy for businesses to reduce energy consumption and operational costs, while contributing to a greener future. Our technology represents a step toward energy efficiency by offering a practical way to address today’s climate challenges.
Cartesian is especially setting a new standard for the optimisation of energy storage in commercial buildings. Our aim is to help create a future in which sustainability and efficiency go hand-in-hand with energy solutions that can play a crucial role in reducing the global carbon footprint.
Our thermal energy experts are ready to assist
Our services
At Cartesian, we deliver energy solutions that increase your energy capacity and resilience. Our technology helps reduce energy consumption and relieves the pressure on HVAC systems by using stored energy more intelligently. Our modular, compact Thermal Box integrates easily, and the installation is quick and hassle-free.
Our Thermal Box can be retrofitted into existing buildings and district heating and cooling systems, or easily specified into new projects, both large and small scale.
Case studies
Zero Emission Building
Case studies
KLP Eiendom
