Europe’s first microgrid-powered data center is a sign of what happens when the AI boom meets an aging electricity grid: companies can’t wait for governments to catch up, so they build their own power plants, reshaping how the continent thinks about energy, infrastructure, and the future of digital technology
Just outside Dublin, a data center has taken an unusual step to keep its servers running. Rather than waiting for a long-delayed connection to the national grid, the facility has turned to its own independent energy system.
The installation, operated by the digital infrastructure developer Pure Data Centre Group in partnership with the power solutions company AVK, is believed to be the first data center in Europe to operate using a live microgrid that can function independently from the main electricity network.
The project reflects a broader challenge confronting Europe as governments and technology companies race to expand computing capacity for artificial intelligence while grappling with an aging power grid and yearslong delays for new energy connections.
Across the European Union, the scale of investment required is enormous. The European Commission estimates the bloc will need at least 1.2 trillion euros, about $1.39 trillion, in energy investments by 2040. For companies seeking to build energy-hungry data centers, waiting for upgrades to the grid is often not an option.
Microgrids offer one possible solution. These localized energy systems can generate, store and distribute power on site, allowing facilities to operate independently if necessary. In the United States, where data centers have proliferated in places like Texas and Virginia, such systems are becoming increasingly common as demand for electricity surges.
AVK and Pure Data Centres say the Dublin installation represents the first time a European data center has been powered by a functioning microgrid.
“As these data centers get bigger and we see AI workloads and that data becoming more of a feature in our day-to-day lives, that only puts more stress on the grid. So we have to drive to a different solution,” AVK CEO Ben Pritchard said.
Yet the approach carries uncertainties. Regulations may slow adoption, and questions remain about whether microgrids can deliver reliable and sustainable power at scale.
Ireland provides a striking example of the tension between economic opportunity and energy constraints. Data centers consumed about 22 percent of the country’s electricity in 2024, placing significant pressure on the national grid.
For several years, authorities effectively halted new data center approvals. Ireland was one of only two European countries to impose a moratorium as officials weighed the strain on infrastructure.
The country’s grid operator warned in late February that meeting electricity demand could be “challenging” as consumption patterns change. Data centers, it said, are a major contributor to that growth.
But sentiment began to shift as the global boom in artificial intelligence intensified competition for digital infrastructure. Late last year, Irish regulators relaxed the moratorium and introduced new rules designed to balance economic growth with energy security.
Under those guidelines, new facilities must supply dispatchable power or maintain the capacity to store energy. They must also obtain at least 80 percent of their annual electricity from renewable power generated within Ireland.
For Pure Data Centres, building a private microgrid offered a path forward.
“The alternative in Ireland was to wait, literally wait for an unknown time to be able to get a grid connection, and still today you’re not able to get a grid connection. So creating a microgrid enabled us to move our project forward,” Pure DC President Dawn Childs told CNBC.
Childs, who was appointed a Dame in the United Kingdom for her services to engineering, said the microgrid was designed both as a short-term workaround and a long-term strategy.
“If we have to stay as an islanded solution, we absolutely can … However, to get the most sustainable solution and to provide services back into the grid in Dublin, in the most constrained area of Ireland, it would be our desire to get a grid connection.”
The Dublin facility is designed to run both cloud computing and artificial intelligence workloads and will ultimately have a capacity of about 110 megawatts. Total investment in the project is expected to reach about 1 billion euros, or roughly $1.2 billion.
At present, the site is powered by natural gas engines that can also operate using Hydrotreated Vegetable Oil. The developers have also experimented with biomethane as a potential fuel source.
If the center eventually connects to the national grid, Childs said it will be capable of supplying dispatchable power and providing up to 20 megawatts of battery storage.
The global market for microgrids has grown rapidly in recent years. Industry estimates suggest the sector was worth about $29 billion in 2025. In Europe, analysts expect annual growth of nearly 10 percent, driven partly by aging infrastructure and the surge in electricity demand from digital services.
Microgrids already power industrial facilities across Europe, but their use in data centers remains limited compared with the United States.
Technology companies are moving quickly to expand the field. Firms such as ABB and Siemens are developing new systems, while Schneider Electric opened a microgrid testing laboratory in Massachusetts last year to study how such systems perform under real-world conditions.
A spokesperson for Siemens said the company sees “potential opportunities” for microgrids at data center sites and is in discussions with several customers. While the United States currently leads the market, interest is also growing in Europe, the company said. Siemens is also exploring microgrids for electric vehicle charging networks and port decarbonization projects.
AVK, which began by providing standby and backup power systems, has expanded into broader energy solutions and expects to reach a valuation of at least $1 billion by 2030.
According to Pritchard, early conversations about microgrids began in Europe, but the United States quickly moved ahead.
“It’s just that the U.S. has such a high demand that we’ve seen the rollout a little bit quicker than we’ve seen here in Europe,” Pritchard explained.
He added that a new type of investor is emerging in the sector.
“They’re infrastructure funds who are looking to build, own and operate microgrids and supply power to the data centers,” Pritchard said. He expects the sector to develop into a distinct infrastructure asset class within the next three to five years.
Despite the enthusiasm, analysts caution that the technology still faces obstacles.
One major challenge is ensuring that microgrids operate in ways that are both sustainable and compatible with national electricity networks, said Diego Hernandez Diaz, a partner at McKinsey & Company.
“Making these assets grid participants in theory and in practice are very different questions,” Hernandez Diaz said.
“Technically speaking, it’s very feasible to do so, and we’ve seen examples of that in the U.S. [where] grid operators are requiring 50 or even 100 hours of flexibility out of the entire year in order to ease the pressure on the grid. So they’re not asking for a lot, but actually having the regulation and policy in place to allow for that to happen is a big question.”
Reliability and regulatory clarity will also determine how quickly the technology spreads, he added.
In the United States, roughly 30 percent of data centers now use microgrids or other “behind-the-meter” power sources, including fuel cells and gas turbines. In Europe, that figure was just 5 to 10 percent about 18 months ago, though it has since risen to roughly 20 percent, Hernandez Diaz said.
The pressure on technology companies to supply their own power is also increasing politically.
Last week, U.S. President Donald Trump said data centers “need some PR help” amid growing concern about their impact on electricity prices.
In his State of the Union address, the president pointed to America’s “old grid” and said large technology companies should provide their own power.
For data center operators, however, building energy infrastructure is far from routine.
“It’s clearly not in a data center’s core skill set to be developing and building microgrids,” Childs said, noting that Pure Data Centres had to hire specialist engineers to construct the Dublin system.
Governments, meanwhile, are attempting to strike a delicate balance between attracting investment from large technology companies and meeting climate and energy goals.
“We are a true enabling factor to allow big renewable projects to come online, to allow flexibility into the grid, and ultimately to allow power costs to come down for all consumers, both business and normal citizens, but the policy and regulation takes a while to allow and facilitate that,” Childs added.
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