Qarnot Computing is a pioneering French cleantech startup that has developed an ingenious solution to two urban challenges simultaneously: the growing energy demand of cloud computing and the need for affordable, low-carbon heating in buildings. The company's core innovation is a digital radiator — a computing device that performs cloud computing tasks while using the resulting waste heat to warm residential and commercial spaces. Instead of concentrating computing power in massive data centres that require energy-intensive cooling, Qarnot distributes computing across thousands of smart radiators installed in buildings throughout cities. This approach eliminates the need for separate heating systems while providing computing power to clients in sectors such as financial services, 3D rendering, and scientific simulation. Qarnot's technology has been deployed in social housing developments, offices, and public buildings across France, demonstrating that the circular economy can work in the digital domain. The company has attracted significant investment and recognition for its innovative approach to urban sustainability, winning numerous awards for clean technology innovation.
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