AI cloud company AI Green Bytes is building an immersion-cooled data center in Paris, France, which will utilize plant-based cooling fluid developed by Oleon.

By submerging its servers in Oleon’s coolant, known as Qloe, AI Green Bytes claims it can cut energy use by up to 90 percent when compared to air-cooled systems.

“Oleon’s Qloe liquid positions us at the forefront of sustainable AI computing,” said Stig Torvund, CEO of AI Green Bytes. “This facility delivers unmatched efficiency while minimizing our ecological footprint.”

Due to open in June 2025, the data center will be AI Green Bytes’ first immersion-cooled facility. Each tank will be capable of cooling up to 361kW of IT equipment, and the company says these can host GPUs from Nvidia and AMD that it will rent to its customers.

The overall capacity of the facility has not been shared. DCD has contacted the company for further details. AI Green Bytes has previously touted its AI Green Qube data center design, a 400 sqm (4,305 sq ft) prefabricated facility capable of running 3,500 GPUs, but it is unclear if the Paris project is based on this design.

AI Green Bytes was founded in 2024 and appears to operate out of Norway, though it recently opened an office in Iceland.

Oleon is a subsidiary of Avril, a French firm specializing in the development of green chemicals. It launched Qloe earlier this month, which it says is fully biodegradable and non-toxic, while offering high-performance cooling to data center operators.

“We’re thrilled to partner with AI Green Bytes to bring Qloe technology to Paris,” said Maarten Trautmann, Oleon’s immersion cooling program lead. “This project showcases our plant-based cooling’s efficiency and supports AI-driven computing sustainably.”