Gonzalo García, CEO and cofounder of Hotta: “ The support of Innovation and CDTI european funds MRR has been key to climb our solutions of liquid cooling high efficiency ”

The data centres are the engine invisible of our digital economy: behind each message, video or use, application servers are working tirelessly. Keep Them active is a great deal of energy and generates a consequence not very clear: waste heat that, in most cases, wasted.

Hotta, a startup soriana energy technology in 2021 founded has been in this problem a chance. It all started with a simple point during his early experiments with servers: heat producing could be used. From there, the team developed its first prototype and began to investigate in liquid cooling thermal and integration. Its objective was clear: to reduce energy large amounts of data centres and convert this heat into a useful resource for buildings, communities and industrial processes.

The programme of CDTI Neotec Innovation, supported by the european funds recovery Mechanism and resilience (MRR), Hotta has been able to make in the development of its liquid cooling. Its technology makes the heat of the servers to useful energy for heating, hot water or even industrial processes.

“ our mission is to connect the excess waste heat of computing with thermal demand of homes, buildings and recycling, energy industries, reducing emissions and the heating costs to zero, ” explains Gonzalo García, CEO and cofounder of the company, which leads along aaron Molina, CTO.

Founders of Hotta: Gonzalo García, current CEO, and aaron Molina, CTO

Thermal innovation: the heat of the servers to useful energy

The core of the draft Hotta is a system of high-density liquid which extracts heat generated by the servers and makes them the thermal energy. It combines cooling optimized by immersion, hydraulic ties with heat exchangers and thermal modules that raise the temperature for applications such as hot water, heating of buildings or industrial processes.

“ We Capture the heat of servants and applying this to the thermal circuit of buildings, reducing energy consumption and approaching heating bills to zero, ” explains García.

In addition to generate heat, cold technology makes it possible to produce through thermally, driven as enfriadoras adsorption or absorption, increasing the overall efficiency of the system. “ The heat of the servers can boost cooling cycles, offering cold air conditioning or industrial processes and optimizing the energy used ”, add.

In parallel, the support of the CDTI Innovation has been crucial for the breakthrough from Hotta prototypes to robust industrial solutions. This support has enabled us to validate the real installations technology, the preparation of the industrial scaling and connect with other actors of the ecosystem of innovation. “ Thanks to the efforts of Neotec, we have been able to accelerate our R & D and spend more rapid prototype of an industrial product with real validation ” recognizes the CEO.

This collaboration has facilitated the implementation of pilot tests, integration with systems of management of buildings and the development of innovative business models, such as the concept of “ hot ”, as a service that combines thermal generation from renewable sources by 2020.

“ our approach seeks for each watt consumed by servers generate heat and cold Useful, increasing the efficiency of a tangible way, ” says the co-founder.

Tangible results and benefits of technology

The draft Hotta has already demonstrated concrete results that demonstrate its effectiveness. Until 2024, the company completed near 50 residential facilities for sports, community, and hotels, many of them combined with photovoltaic power. “ In those environments have been heating bills close to zero, and in some cases, the net electricity consumption is practically nil, thanks to off, ” emphasizes photovoltaic García.

The system covers needs of middle and high temperature, reaching up to 90 ° C, thus significantly widens its applications. For the CEO, this is key to ensuring the compatibility with existing facilities and replace fossil boilers: “ The higher the temperature Useful, it is easier to integrate the solution in existing buildings and replace conventional boilers ”, stresses.

Cooling system of high efficiency developed by Hotta

Beyond the financial savings, technology contributes to the decarbonisation, reduces peaks of electrical and promotes local energy circularity. “ Our system allows you to reduce from about 30 per cent to 100% expenditure, lower thermal emissions and fuel oil, gas offer local trigeneración and integrate value to the city of connecting networks with energizing public amenities, energy and digital ecosystems ”, summarizes the CEO.

Thanks to these results, not only Hotta efficiency gains and savings, but that is positioned as a leader in sustainable solutions for buildings, communities and industries, to strengthen its vision of making data centres in a useful heat suppliers to society.

Future projection and strategic vision

For the future, the company aims to consolidate its standard technology market and to expand internationally. The initial deployment will focus on Spain, with subsequent expansion to europe and targeted projects in the united states. “ our goal is to combine with heat and photovoltaic and service networks, bringing heat our solutions to various types of customers and scalable, ” explains García.

In the long term, Hotta aspires to become a leader in energy efficiency and sustainability, closing the circle between computing and energy. “ We want the data centres to become suppliers of heat Useful to society, reducing emissions and costs. It said: ‘ From Hotta, the heat of the servers stopped wasted ’, ” concludes the CEO.

Projects such as this undertaking are an example of how technological innovation drives energy transition and digital, converting research and development in concrete solutions to society and industry. Thanks to this type of initiative, the data centres not only maintain the digital economy, but also become allies of the efficiency, sustainability and the circular economy.

CDTI Innovation

The centre for technological development and innovation, CDTI E.P.E. is the agency for innovation of the ministry of science, innovation and universities, whose goal is the promotion of technological innovation in business. The CDTI mission is to ensure that the business fabric english generates and transform knowledge into growth científico-técnico globally competitive, sustainable and inclusive. By 2024, within the framework of a new strategic plan, the CDTI provided more than $2.3 billion euros of support for business startups and spain.

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