By John Q. Hosedrinker 
The Nordics, once a prime destination for data center investment due to their climate and renewable energy, are now facing limits on growth as surging energy demand strains grids. Denmark has temporarily paused new grid connection requests for data centers, which account for a significant portion of the capacity needed, leading to concerns about potential relocation of AI workloads. This situation highlights a global trend of data centers facing pushback over energy use and necessitates a reevaluation of grid capacity and prioritization of energy access amidst increasing demand from digitalization and the AI boom.
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Denmark is finding itself at a crossroads, facing a significant challenge as the insatiable appetite for data centers clashes with the limits of its power grid. The sheer scale of planned data center projects is staggering, with approximately 60 gigawatts of capacity waiting for grid connections. To put this into perspective, Denmark’s peak electricity demand for the entire country hovers around 7 gigawatts. This means the proposed data centers alone could demand more than double the nation’s current peak power needs. The issue is that data centers account for a substantial portion, nearly a quarter, of these 60 gigawatts of potential new grid connections, highlighting their immense and rapidly growing energy requirements.
The strain on Denmark’s electricity grid is a complex, multifaceted problem. It’s not solely about the surge in data center demand, though that is a major contributor. The country is undergoing a rapid electrification across various sectors, which naturally places a heavy burden on its power infrastructure. For instance, the transition to electric vehicles is accelerating dramatically, with electric cars now comprising a significant percentage of new vehicle sales, a figure that continues to climb monthly. Beyond personal vehicles, other modes of transport, including ferries, trains, and commercial vehicles, are also progressively embracing electrification. Simultaneously, a large portion of Danish homes and buildings are shifting away from fossil fuel-based heating systems towards electric heat pumps, particularly within the extensive district heating network that serves over half the country’s households. Even industrial processes, especially those requiring lower temperatures, are beginning to electrify, moving away from natural gas.
Adding to this mounting demand is the parallel expansion of renewable energy sources. Denmark is actively investing in new solar and wind power installations, alongside the development of battery storage facilities. While these are crucial steps towards a greener future and offer significant societal benefits, they also necessitate substantial upgrades and changes to the existing transmission grid infrastructure. The interconnectedness of these developments means that the grid is under immense pressure from multiple fronts, making it difficult to accommodate any single, large new demand without consequences.
The role of data centers in this burgeoning energy landscape presents a more nuanced picture compared to other electrification efforts. While other sectors like transportation and heating are clearly driven by societal benefits and environmental goals, the advantages of data centers are perceived as less straightforward. There’s a general sentiment that data centers contribute very little in terms of employment opportunities, and they often procure electricity at exceptionally low rates. Furthermore, concerns are raised about tax avoidance by major tech corporations, with profits generated from data center operations potentially not being taxed within Denmark. This raises questions about the net societal benefit when considering the significant energy demands.
However, it’s acknowledged that a certain number of data centers are necessary for national and European digital sovereignty. The ability to host European-owned compute power within Europe is becoming increasingly important, especially considering data privacy and security concerns. US-owned data centers, for example, are subject to laws like the CLOUD Act, which could compel them to share data with the US government upon request. Therefore, the argument is made for prioritizing data centers that serve European interests and offer genuine benefits in terms of digital independence.
Given the overwhelming demand and the limited societal return from some data centers, a clear stance is emerging: US-owned data centers, in particular, should be placed at the back of the queue. The reasoning is straightforward: they are not perceived as essential for Denmark’s immediate needs, offer limited value, and could potentially complicate international relations in the future. The idea of simply continuing to welcome any data center without critical evaluation is being challenged, especially when the existing infrastructure cannot sustainably support such growth.
The prospect of data center operators threatening to take their investments elsewhere if faced with delays or restrictions is met with a degree of defiance. Some argue that these threats are hollow, given that the core issue is the lack of available grid capacity, a problem that many countries are now facing globally. The idea of shutting down power to homes or essential services to accommodate data centers is deemed unacceptable. Instead, a more logical approach is being advocated: data center developers should be required to be self-sufficient in terms of their power generation. This means that the cost and infrastructure for supplying their own electricity, preferably through clean energy sources, should be an integral part of their capital investment from the outset.
The current situation highlights a potential lapse in planning and foresight. It seems that the rapid pace of electrification and the explosive growth of AI-driven computing demands were not adequately factored into the long-term infrastructure development plans. The responsibility for calculating and managing power demand typically falls to grid operators and city planners, and the current predicament suggests a failure in this crucial engineering and logistical process. Outright bans on data centers are being considered by some, arguing that their costs, in all conceivable terms, far outweigh any perceived benefits. The argument is that data centers are creating problems globally, from energy shortages to water stress and drought, making their widespread adoption unsustainable.
The comparison of planned data center energy needs to that of entire countries, or the requirement for multiple new nuclear power plants to support a single large data center, underscores the magnitude of the problem. Questions are repeatedly being raised about the actual net benefit these facilities bring to the general population, especially when weighed against the strain on resources and the potential for exacerbating energy costs for everyone.
The stability and reliability of Denmark’s grid, which initially attracted major tech companies, is now being jeopardized by the very entities seeking to leverage it. There’s also a critique that governments, in their eagerness to attract tech investments, might have hindered data center operators from developing their own power sources, potentially to avoid outcompeting existing energy companies. This dynamic has contributed to the current bottleneck, where operators are reliant on an overloaded grid and face significant delays in securing connections.
The push for massive data center expansion, particularly for AI applications, is raising serious concerns about energy wastage, especially when it’s used for generating what’s described as “dumb slop videos” for social media. The focus on AI, while potentially beneficial, is becoming overwhelming, and the associated surge in electricity costs and hardware demands is becoming a significant burden. The performance of grid operators like Energinet is being called into question, with expectations of worsening rather than improving situations.
A significant point of contention is the exclusion of nuclear power from Denmark’s energy strategy, with some arguing it’s the only viable solution for meeting such massive and consistent energy demands, especially in light of the EU’s focus on renewables. This shift away from fossil fuels, while necessary, is being hampered by the overwhelming demand from data centers, which is preventing other industries from electrifying and reducing their own carbon footprints.
The promised job creation from data center projects has also been met with skepticism, with revelations that construction phases primarily employ foreign workers, leaving very few permanent local jobs. This, coupled with the potential negative impact on Denmark’s CO2 reduction targets, fuels the argument that welcoming foreign data centers is detrimental to national interests and environmental goals.
The statistic that around 14 GW of the 60 GW of pending connections are from data centers, representing a potential 25% increase over the country’s current peak demand, is a stark reminder of the scale of the challenge. While Denmark is experiencing a remarkable surge in electric vehicle adoption, the grid capacity to support this, alongside other electrification efforts and the burgeoning data center sector, is a critical hurdle. The current situation demands a reevaluation of priorities, ensuring that essential services and societal progress are not undermined by the relentless pursuit of unchecked data center growth.