The rapid advances in AI are revolutionizing not only the way we process data but also the energy infrastructure that supports it.
As explained by the Financial Times in an article dedicated to the topic, new AI-dedicated data centers generate power fluctuations so violent and sudden that they challenge traditional electrical grids. In this context, batteries are no longer just a simple backup accessory but become an essential component to stabilize the system.
Several startups in the sector are exploiting this highly specialized niche, offering solutions capable of responding in very short times to energy peaks equivalent to the consumption of a small city.
The result is a demand described as “crazy” by the executives themselves, creating a market that appears more promising and profitable than investments in electric cars and renewables, which suffer competition from Chinese giants.
The energy impact of AI on data centers
In traditional data centers, processors mostly worked independently, generating fairly predictable and above all stable energy loads.
With the arrival of AI, everything changed. During training phases and also during inference, that is the actual execution of models, thousands of processing units operate in perfect synchrony. This collective behavior causes extreme power peaks and drops: tens of megawatts that can vary in just one thousandth of a second.
These sudden energy fluctuations are so intense that many operators even struggle to get connected to the power grid. Existing backup systems and gas turbines were not designed to react within such short time intervals.
Without an adequate solution, data centers risk not being able to operate at full capacity or, worse, failing to connect to the grid. This is why specialized batteries have gone from being a desirable element to an indispensable component.
Alsym Energy and the advantage of sodium-ion batteries
One of the companies gaining the most interest in the sector is Alsym Energy, an American startup supported by the investment arm of the Indian conglomerate Tata Group.
Its CEO, Mukesh Chatter, told the Financial Times that in the last three months requests from data center operators have literally exploded.
The sodium-ion batteries developed by the company can discharge energy much faster than traditional lithium-ion ones, making them particularly suitable for balancing the continuous fluctuations generated by AI.
According to Chatter, without this type of support many facilities would not even be able to connect to the grid.
Other startups enter the game
The phenomenon is not limited to Alsym. QuantumScape, a company supported by Volkswagen and initially focused on solid-state batteries for electric cars, is shifting its attention towards data centers.
CEO Siva Sivaram confirmed that they are in talks with numerous data center equipment manufacturers, emphasizing that this market offers significantly more attractive margins and could allow the company to reach profitability sooner.
Similarly, Nyobolt, a British startup, has already started shipping samples to its customers and expects the first installations next year.
CEO Sai Shivareddy explained that their system allows large cloud operators to run processor clusters at full power without violating grid connection limits.
Grids under stress
The problem fits into a broader picture: in many countries, electrical grids are already congested, with connection queues lasting years due to competition between renewable projects and large energy consumers.
In this scenario, specialized batteries represent an agile and rapid solution.
As Caitlin McManus of BloombergNEF noted, the topic began to gain attention towards the end of last year, following warnings issued by Nvidia, OpenAI, Microsoft, and xAI about the severe energy impacts of new AI servers.
BloombergNEF analysts estimate that the battery capacity needed for this type of power stabilization will remain a fraction of the overall energy storage market.
Large manufacturers like LG Energy Solution and CATL will be able to rely on their existing products and proven production capacity.
However, startups believe the niche will remain attractive precisely because elsewhere, especially in the electric vehicle sector and storage for renewables, Chinese competition has transformed the market, generating a real price war.
Strong growth potential
Confirming this picture is also Prime Batteries Technology, a Romanian manufacturer specialized in high-performance storage systems.
CEO Vicentiu Ciobanu emphasized that data center customers are much less price-sensitive than renewable project developers. For them, speed of installation and energy security matter more.
Ciobanu added that it is essential to position early because demand from data centers is destined to grow rapidly and is unlikely to become a mass-market product. Quite the opposite of what happens in the world of electric cars or large storage systems, where competition has made everything extremely aggressive and low-margin.
