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And they add that according to coordinator Thales Alenia Space, the project “could also generate a return on investment of several billion euros between now and 2050.”

The study — dubbed Ascend, short for Advanced Space Cloud for European Net zero emission and Data sovereignty — was funded by the European Union and sought to compare the environmental impacts of space-based and Earth-based data centers, the company said. Moving forward, the company plans to consolidate and optimize its results. Space data centers would be powered by solar energy outside the Earth’s atmosphere, aiming to contribute to the European Union’s goal of achieving carbon neutrality by 2050, the project coordinator said… Space data centers wouldn’t require water to cool them, the company said.
The 16-month study came to a “very encouraging” conclusion, project manager Damien Dumestier told CNBC. With some caveats…

The facilities that the study explored launching into space would orbit at an altitude of around 1,400 kilometers (869.9 miles) — about three times the altitude of the International Space Station. Dumestier explained that ASCEND would aim to deploy 13 space data center building blocks with a total capacity of 10 megawatts in 2036, in order to achieve the starting point for cloud service commercialization… The study found that, in order to significantly reduce CO2 emissions, a new type of launcher that is 10 times less emissive would need to be developed. ArianeGroup, one of the 12 companies participating in the study, is working to speed up the development of such reusable and eco-friendly launchers. The target is to have the first eco-launcher ready by 2035 and then to allow for 15 years of deployment in order to have the huge capacity required to make the project feasible, said Dumestier…

Michael Winterson, managing director of the European Data Centre Association, acknowledges that a space data center would benefit from increased efficiency from solar power without the interruption of weather patterns — but the center would require significant amounts of rocket fuel to keep it in orbit. Winterson estimates that even a small 1 megawatt center in low earth orbit would need around 280,000 kilograms of rocket fuel per year at a cost of around $140 million in 2030 — a calculation based on a significant decrease in launch costs, which has yet to take place. “There will be specialist services that will be suited to this idea, but it will in no way be a market replacement,” said Winterson. “Applications that might be well served would be very specific, such as military/surveillance, broadcasting, telecommunications and financial trading services. All other services would not competitively run from space,” he added in emailed comments.

[Merima Dzanic, head of strategy and operations at the Danish Data Center Industry Association] also signaled some skepticism around security risks, noting, “Space is being increasingly politicised and weaponized amongst the different countries. So obviously, there is a security implications on what type of data you send out there.”

Its not the only study looking at the potential of orbital data centers, notes CNBC. “Microsoft, which has previously trialed the use of a subsea data center that was positioned 117 feet deep on the seafloor, is collaborating with companies such as Loft Orbital to explore the challenges in executing AI and computing in space.”

The article also points out that the total global electricity consumption from data centers could exceed 1,000 terawatt-hours in 2026. “That’s roughly equivalent to the electricity consumption of Japan, according to the International Energy Agency.”