‘Algae recycled into energy’: how one of Europe’s largest data center companies wants to harness heat from GPUs and others to grow sustainable marine flora – but will it be worth it?
Data centers produce a lot of waste heat that could one day be recycled and used to heat millions of homes.
Now French data center company Data4 has teamed up with the University of Paris-Saclay to launch a project that aims to use the heat from data centers to grow algae, which can then be recycled into energy. The pilot project, which will start in early 2024, will be trialled in the Paris region.
This initiative, led by a diverse team of experts from different fields, is driven by the French administration “Conseil Départemental de l’Essonne” and the Foundation Université Paris-Saclay. The project comes in response to the escalating environmental impact of data centers, which have seen a 35% annual increase in data storage worldwide.
A more efficient alternative
The algae grown from the captured CO2 will be recycled into biomass to create new circular energy sources and will also be used in the production of bioproducts for other industries.
According to a feasibility study conducted with start-up Blue Planet Ecosystems, the carbon capture efficiency of this method can be twenty times greater than that of a tree.
Data4 says using the data center’s waste heat for algae growth is a more efficient alternative to the common practice of heating nearby homes, which uses only 20% of the heat produced.
“This extensive biomass project meets two of the greatest challenges of our time: food security and the energy transition. This requires close collaboration between all players in the Essonne region, including Data4, to develop a true industrial ecology project, aimed at pooling resources and reducing consumption in the region. Thanks to this partnership with the Fondation de l’Université Paris Saclay, we have the opportunity to call on one of the world’s most prestigious scientific communities to work towards a common goal of a circular energy economy,” says Linda Lescuyer, Innovation Manager, Data4.