AI boom thrusts Europe between power-hungry data centers and environmental goals
A large hallway with supercomputers inside a server room data center.
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The boom in artificial intelligence is ushering in an environmentally conscious shift in how data centers operate, as European developers face pressure to lower the water temperatures of their energy-hungry facilities to accommodate the higher-powered chips of firms such as tech giant Nvidia.
AI is estimated to drive a 160% growth in demand for data centers by 2030, research from Goldman Sachs shows — an increase that could come at a cost to Europe’s decarbonization goals, as the specialized chips used by AI firms are expected to hike the energy use of the data centers that deploy them.
High-powered chips — also known as graphics processing units, or GPUs — are essential for training and deploying large language models, which are a type of AI. These GPUs need high density computing power and produce more heat, which ultimately requires colder water to support reliable cooling of the chips.
AI can consume 120 kilowatts of energy in just one square meter of a data center, which is equivalent to the power consumption and heat dissipation of around 15 to 25 houses, according to Andrey Korolenko, chief product and infrastructure officer at Nebius, who referred specifically to the deployment of Nvidia’s Blackwell GB200 chip.
“This is extremely dense, and from the cooling standpoint of view you need different solutions,” he said.
The problem we’ve got with the chipmakers, is AI is now a space race run by the American market where land rights, energy access and sustainability are relatively low on the pecking order, and where market domination is key,” Winterson told CNBC
Michael Winterson
chair of the EUDCA
Michael Winterson, chair of the European Data Center Association (EUDCA), warned that lowering water temperatures will eventually “fundamentally drive us back to an unsustainable situation that we were in 25 years ago.”
“The problem we’ve got with the chipmakers is [that] AI is now a space race run by the American market where land rights, energy access and sustainability are relatively low on the pecking order, and where market domination is key,” Winterson told CNBC.
Major equipment suppliers in Europe say that U.S. chip designers are calling on them to lower their water temperatures to accommodate the hotter AI chips, according to Herbert Radlinger, managing director at NDC-GARBE.
“This is shocking news, because originally everybody from the engineering side expected to go for liquid cooling to run higher temperatures,” he told CNBC, referring to the technology of liquid cooling, which is said to be more efficient than the more traditional method of air cooling.
‘Evolution discussion’
Energy efficiency is high on the European Commission’s agenda, as it seeks to reach its goal of reducing energy consumption by 11.7% by 2030. The EU predicted in 2018 that energy consumption of data centers could rise 28% by 2030, but the advent of AI is expected to boost that number two or threefold in some countries.
Winterson said that lowering water temperatures is “fundamentally incompatible” with the EU’s recently launched Energy Efficiency Directive, which established a dedicated data base for data centers of a certain size to publicly report on their power consumption. The EUDCA has has been lobbying Brussels to consider these sustainability concerns.
Energy management firm Schneider Electric engages often with the EU on the topic. Many of the recent discussions have focused on different ways to source “prime power” for AI data centers and for the potential for more collaboration with utilities, said Steven Carlini, chief advocate of AI and data centers and vice president at Schneider Electric.
European Commission energy officials have also had exchanges with Nvidia to discuss energy consumption and the use of data centers with regard to the effectiveness of power use and that of chipsets.
CNBC has approached Nvidia and the Commission for comment.
“Cooling is the second-largest consumer of energy in the data center after the IT load,” Carlini told CNBC in emailed comments. “The energy use will rise but the PUE (Power Usage Effectiveness) may not rise with lower water temperatures despite the chillers having to work harder.”
Schneider Electric’s customers that are deploying Nvidia’s Blackwell GB200 super chip are asking for water temperatures of 20-24 degrees Celsius or between 68 and 75 degrees Fahrenheit, Carlini said.
He added that this compares to temperatures of around 32 degrees Celsius with liquid cooling, or of around 30 degrees Celsius that Meta has suggested for the water it supplies to the hardware.
Ferhan Gunen, vice president of data center operations for the U.K. at Equinix, told CNBC that there are a number of concerns about AI that Equinix has been discussing with its customers.
“They want to increase the density of their servers, which is, they want to have higher-power-using chips, or they want to have more servers,” she said, adding that the shift is not “clear cut.”
“It’s really an evolution discussion more than anything,” Gunen said.
Nvidia, which declined to comment on the cooling requirements of its chips, announced a new platform for its Blackwell GPUs earlier this year. It said that the architecture would enable organizations to run real-time generative AI on large language models at up to 25 times less cost and energy consumption compared to earlier technology.
Liquid cooling will require a “reconfiguration,” Gunen explained, adding that new data centers are already coming ready with this technology. “Yes, higher density will mean more power use, and will also mean more cooling requirement. But then the technology is changing, so you’re doing it differently. That’s why there is a balance in all of this,” she said.
Race for efficiency
Nebius, which has around $2 billion in cash on its balance sheet after splitting from Russia’s Yandex, has said it will be one of the first to bring Nvidia’s Blackwell platform to customers in 2025. The firm has also announced plans to invest more than $1 billion on AI infrastructure in Europe by the middle of next year.
Nebius’ Korolenko said liquid cooling is a “first step,” where cost of ownership will initially be worse before improving over time.
“There’s a big push to deliver, but at the same time, when you go to scale, you will want to have the ability to choose, to be economical and not sacrifice too much. Power efficiency is important for the running costs. It’s always a high priority,” Korolenko said.
Even before a boom in demand for AI applications hit the market, the data center industry in Europe was struggling to keep pace with the growing digital sector.
Sicco Boomsma, managing director of ING’s TMT team, said those involved in the market are “very sensitive to power” and that while Europe’s focus is on infrastructure, the U.S. has focused more on expanding assets in Europe where power is available.
“There’s a tremendous amount of data center operators also coming from the U.S. that are aligning in order to ensure that their data center infrastructure is in line with the various goals that the EU has as well, such as being carbon neutral, such as being efficient, on water utilization, maintaining biodiversity.”
“It is a sort of a race where they want to demonstrate that their knowledge is leading to super efficient infrastructure,” he said.
Wind energy powered 20% of all electricity consumed in Europe (19% in the EU) in 2024, and the EU has set a goal to grow this share to 34% by 2030 and more than 50% by 2050.
To stay on track, the EU needs to install 30 GW of new wind farms annually, but it only managed 13 GW in 2024 – 11.4 GW onshore and 1.4 GW offshore. This is what’s holding the EU back from achieving its wind growth goals.
Three big problems holding Europe’s wind power back
Europe’s wind power growth is stalling for three key reasons:
Permitting delays. Many governments haven’t implemented the EU’s new permitting rules, making it harder for projects to move forward.
Grid connection bottlenecks. Over 500 GW(!) of potential wind capacity is stuck in grid connection queues.
Slow electrification. Europe’s economy isn’t electrifying fast enough to drive demand for more renewable energy.
Brussels-based trade association WindEurope CEO Giles Dickson summed it up: “The EU must urgently tackle all three problems. More wind means cheaper power, which means increased competitiveness.”
Permitting: Germany sets the standard
Permitting remains a massive roadblock, despite new EU rules aimed at streamlining the process. In fact, the situation worsened in 2024 in many countries. The bright spot? Germany. By embracing the EU’s permitting rules — with measures like binding deadlines and treating wind energy as a public interest priority — Germany approved a record 15 GW of new onshore wind in 2024. That’s seven times more than five years ago.
If other governments follow Germany’s lead, Europe could unlock the full potential of wind energy and bolster energy security.
Grid connections: a growing crisis
Access to the electricity grid is now the biggest obstacle to deploying wind energy. And it’s not just about long queues — Europe’s grid infrastructure isn’t expanding fast enough to keep up with demand. A glaring example is Germany’s 900-megawatt (MW) Borkum Riffgrund 3 offshore wind farm. The turbines are ready to go, but the grid connection won’t be in place until 2026.
This issue isn’t isolated. Governments need to accelerate grid expansion if they’re serious about meeting renewable energy targets.
Electrification: falling behind
Wind energy’s growth is also tied to how quickly Europe electrifies its economy. Right now, electricity accounts for just 23% of the EU’s total energy consumption. That needs to jump to 61% by 2050 to align with climate goals. However, electrification efforts in key sectors like transportation, heating, and industry are moving too slowly.
European Commission president Ursula von der Leyen has tasked Energy Commissioner Dan Jørgensen with crafting an Electrification Action Plan. That can’t come soon enough.
More wind farms awarded, but challenges persist
On a positive note, governments across Europe awarded a record 37 GW of new wind capacity (29 GW in the EU) in 2024. But without faster permitting, better grid connections, and increased electrification, these awards won’t translate into the clean energy-producing wind farms Europe desperately needs.
Investments and corporate interest
Investments in wind energy totaled €31 billion in 2024, financing 19 GW of new capacity. While onshore wind investments remained strong at €24 billion, offshore wind funding saw a dip. Final investment decisions for offshore projects remain challenging due to slow permitting and grid delays.
Corporate consumers continue to show strong interest in wind energy. Half of all electricity contracted under Power Purchase Agreements (PPAs) in 2024 was wind. Dedicated wind PPAs were 4 GW out of a total of 12 GW of renewable PPAs.
Read more: Renewables could meet almost half of global electricity demand by 2030 – IEA
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In the Electrek Podcast, we discuss the most popular news in the world of sustainable transport and energy. In this week’s episode, we discuss the official unveiling of the new Tesla Model Y, Mazda 6e, Aptera solar car production-intent, and more.
The show is live every Friday at 4 p.m. ET on Electrek’s YouTube channel.
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The Chinese EV leader is launching a new flagship electric sedan. BYD’s new Han L EV leaked in China on Friday, revealing a potential Tesla Model S Plaid challenger.
What we know about the BYD Han L EV so far
We knew it was coming soon after BYD teased the Han L on social media a few days ago. Now, we are learning more about what to expect.
BYD’s new electric sedan appeared in China’s latest Ministry of Industry and Information Tech (MIIT) filing, a catalog of new vehicles that will soon be sold.
The filing revealed four versions, including two EV and two PHEV models. The Han L EV will be available in single- and dual-motor configurations. With a peak power of 580 kW (777 hp), the single-motor model packs more power than expected.
BYD’s dual-motor Han L gains an additional 230 kW (308 hp) front-mounted motor. As CnEVPost pointed out, the vehicle’s back has a “2.7S” badge, which suggests a 0 to 100 km/h (0 to 62 mph) sprint time of just 2.7 seconds.
To put that into perspective, the Tesla Model S Plaid can accelerate from 0 to 100 km in 2.1 seconds. In China, the Model S Plaid starts at RBM 814,900, or over $110,000. Speaking of Tesla, the EV leader just unveiled its highly anticipated Model Y “Juniper” refresh in China on Thursday. It starts at RMB 263,500 ($36,000).
BYD already sells the Han EV in China, starting at around RMB 200,000. However, the single front motor, with a peak power of 180 kW, is much less potent than the “L” model. The Han EV can accelerate from 0 to 100 km/h in 7.9 seconds.
At 5,050 mm long, 1,960 mm wide, and 1,505 mm tall with a wheelbase of 2,970 mm, BYD’s new Han L is roughly the size of the Model Y (4,970 mm long, 1,964 mm wide, 1,445 mm tall, wheelbase of 2,960 mm).
Other than that it will use a lithium iron phosphate (LFP) pack from BYD’s FinDreams unit, no other battery specs were revealed. Check back soon for the full rundown.
Source: CnEVPost, China MIIT
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