Nebius, the AI cloud firm, revealed its 2025 Sustainability Report, setting out a 12 months of environmental efficiency information throughout its increasing world footprint and detailing its funding within the communities the place it operates.
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As Nebius scales its AI cloud towards a number of gigawatts of compute capability, its whole vitality and water necessities proceed to develop. The corporate’s response begins with engineering: designing servers, racks, cooling programs and cloud software program as one system so that every unit of vitality delivers extra helpful compute.
Throughout its portfolio in 2025, Nebius achieved a median PUE of 1.25, in contrast with the worldwide trade common of 1.54.1 PUE compares an information middle’s whole energy draw with the facility its computer systems really use. Mixed with environment friendly cooling, Nebius estimates that its {hardware} and information middle design prevented 102 GWh of electrical energy consumption in the course of the 12 months,2 equal to the annual electrical energy use of 9,800 American households.
Daria Mukhortova, Head of Sustainability at Nebius, stated:
“How AI is constructed issues simply as a lot as what it allows. Our job is to obviously report the impression of accelerating demand for AI, and to make use of the information to enhance how we construct. Since our inception, we’ve measured and reported our impression, as a result of transparency is how we keep accountable as we scale.”
Nebius designs its air and closed-loop liquid cooling programs to attenuate water consumption. On the finish of 2025, an owned facility utilizing liquid cooling recorded a water utilization effectivity of 0.018 L/kWh, in contrast with a projected US information middle common of 0.45-0.49 L/kWh.3
Based mostly on its present programs designs, Nebius estimates its approaches have the potential to keep away from roughly 3.3 billion liters (almost 900 million US gallons) of water consumption by design for every GW of portfolio — sufficient to fill roughly 1,300 Olympic-size swimming swimming pools.4
The identical concentrate on useful resource effectivity additionally creates worth outdoors the information middle. Nebius’s warmth restoration system in Mäntsälä, Finland, exported 19.5 GWh of recovered warmth to the native district heating community in 2025.5 The system has diminished heating prices for linked households by round 10% and is designed to export greater than 250 GWh yearly at full capability.6
These design and engineering options are being deployed throughout new places as Nebius scales, as a part of the corporate’s dedication to construct infrastructure responsibly and create long-term worth for the communities the place it operates.
Nebius works with utilities from website choice via deployment to align its infrastructure with native vitality programs. In 2025, it sourced 100% renewable electrical energy in Iceland, France, and the UK, whereas transitioning operations in Finland from 95% low-carbon to 100% renewables. Within the U.S. and elsewhere, it’s pursuing lower-emissions choices, together with behind-the-meter gas cells with Bloom Power.
Nebius’s U.S. infrastructure investments are additionally anticipated to create expert building and everlasting know-how jobs, whereas producing long-term funding for native colleges, public infrastructure and important providers. The corporate has additionally launched group initiatives supporting STEM training, skilled-trades apprenticeships, workforce growth, and first responders, alongside partnerships with colleges, group schools, and universities to assist put together native expertise for careers in AI.
In 2025, Nebius Academy partnered with 16 universities throughout North America and Europe to develop entry to AI training and analysis. Current initiatives embrace a partnership with Rowan College in New Jersey to develop tutorial pathways in AI, information science, and cloud computing, serving to put together college students and employees for rising know-how careers.
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