Castrol and Submer to Collaborate on Immersion Cooling Solutions

Agreement to tackle efficiency and sustainability challenges

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Castrol and Submer Partnership

22nd June, 2022, Barcelona. For immediate release.

Castrol, one of the world’s leading lubricants brands, and Submer, an emerging leader for immersion cooling systems, have signed an agreement aiming to accelerate the adoption of immersion cooling as a path to more efficient and more sustainable data centre operations.

What does the Submer and Castrol agreement mean for the Immersion industry?

The companies plan to collaborate on the global supply, standardization, and development of next generation immersion cooling fluids – fluids used to cool components of IT equipment by submerging computer components in a thermally conductive and dielectric liquid. The servers are cooled as a result and heat is transferred from the source to the liquid.

By combining Castrol’s thermal management expertise with Submer’s expertise in immersion cooling systems, the two organisations aim to achieve a multitude of benefits particularly in allowing data centers to be managed in a more sustainable manner. With immersion cooling the water usage and the power consumption to operate and cool server equipment can be significantly reduced.

bp (Castrol’s parent company) is also working with companies in key industrial sectors that have significant carbon emissions to manage, to help them to decarbonize by offering integrated energy solutions. This potentially opens additional opportunities for Castrol and Submer to explore integrated coolant and energy offers, tailored to support data centre customers to help them meet their sustainability goals.

The impact of the Castrol and Submer Agreement

“At Castrol, we aim to work with our customers to help deliver a more sustainable future as set out in our PATH360 framework, including working with our commercial customers to help them save energy, waste and water. Teaming up with Submer is a great example of how cooperation can help deliver more efficient operations and can bring about many opportunities for us to continue to deliver products that help save energy whilst delivering high-performance with increased efficiency.”

Rebecca Yates, bp’s vice president advanced mobility and industrial products.

“At Submer, our stated mission is to enable sustainable digital infrastructures. There are two key drivers for needing a different medium other than air; there’s a technical need driven by the supporting future generations of high-density chips that can no longer be cooled by traditional means, and a sustainability driver, driven by the need to deliver more sustainable data centers with improved environmental performance. Thanks to immersion cooling we can run these digital infrastructures with considerably reduced energy and space typically required. Additionally, with utilising heat recovery and reuse technology, we turn them into highly efficient thermal power sources that can deliver hot water to neighbouring businesses. All this happens thanks to a liquid medium that both Castrol and Submer are experts in.”

Daniel Pope, Co-Founder and CEO, Submer

The two organisations see great potential in combining Castrol’s global reach, service capabilities and thermal management expertise with Submer’s technology and know-how, to seek to enable a differentiated offer to better serve customers by providing unique life-cycle and integrated solutions. Both companies have strong sustainability aims and can support the data centre industry on its journey towards achieving more sustainable operations.

About Castrol 

Castrol, one of the world’s leading lubricant brands, has a proud heritage of innovation and fuelling the dreams of pioneers. Our passion for performance, combined with a philosophy of working in partnership, has enabled Castrol to develop lubricants and greases that have been at the heart of numerous technological feats on land, air, sea, and space for over 100 years. 

Today, Castrol is helping drive sustainability with our Path360 strategy that sets out aims for 2030 to save waste, reduce carbon and improve lives. Castrol is part of the BP group and serves customers and consumers in the automotive, marine, industrial and energy sectors. Our branded products are recognized globally for innovation and high performance through our commitment to premium quality and cutting-edge technology. 

To find out more about Castrol please visit or contact 

About Submer  

Founded in 2015, Submer provides best-in-class technology that enables data centres around the world to leverage the power of immersion cooling for HPC, hyperscale, data centres, Edge, AI, DL and blockchain applications. Headquartered in Barcelona, with offices in Virginia and Palo Alto, California, Submer consists of an international team of engineering, technological and business experts. For more information, visit

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