European data center power purchase agreements fell from 4.2 gigawatts in 2024 to 2.6 GW in 2025, OilPrice.com reported last week. Data center capacity, meanwhile, doubled. The math doesn't work. The continent's AI buildout is outpacing its ability to secure the clean energy needed to run it.
The drop reflects offshore wind delays and increased challenges in agreeing on PPA price points due to falling capture rates and rising frequency of negative wholesale power price hours, particularly for solar PV , according to OilPrice.com. Offshore wind—previously the largest-volume segment—saw signed volumes fall from 1.35 GW in 2024 to 0.5 GW in 2025 and just 100 megawatts in the first quarter of 2026 , representing a single Google offtake from a German wind farm. Solar deals have contracted too, weighed down by negative pricing hours that make projects harder to finance. 67% of European data center operators now cite access to power as their single greatest operational challenge , Data Center Knowledge reported in February.
The hyperscalers—Amazon, Google, Microsoft—are the biggest buyers in the European PPA market. Amazon, Google, and Microsoft account for the bulk of European data center PPA activity, with Amazon alone signing more than 3 GW since 2024 . But even they are hitting limits. The race to secure power has led some major hyperscalers to reassess their clean energy ambitions, moderating one of the key demand signals that had supported European renewable PPA activity , OilPrice.com noted. Spain leads all markets with more than 2 GW across 12 deals, but the pipeline for 2026 and beyond looks thin.
Are Hyperscalers Backing Away From Renewables?
Not exactly. They're pivoting. Nuclear and hybrid structures that emerged in 2025 point to offtakers seeking more baseload-like supply as intermittent renewables alone prove insufficient to meet always-on data center load , according to OilPrice.com. The Netherlands saw Equinix sign a 250 MW nuclear PPA with ULC Energy. Microsoft, Google, and Amazon have all committed billions to nuclear partnerships in recent months, including Amazon's $500M to X-energy and Google's 1.8GW deal with Elementl Power , according to industry analysis published in March.
The shift is pragmatic. Wind and solar are intermittent. Data centers run 24/7. The major concern about PPAs is that they derive the majority of their power from wind and solar assets, which are intermittent by nature, prompting operators to explore alternatives like geothermal and hydropower, which offer more consistent energy flow , Data Center Dynamics reported in March. In the U.S., power purchase agreements are evolving into complex risk-sharing structures as hyperscale data center operators trade fixed pricing for physical delivery and grid-bypass certainty, with the industry shifting toward energy parks that integrate solar and battery storage behind the meter to bypass sluggish federal interconnection queues , PV Magazine USA reported in March.
Europe doesn't have that luxury yet. A data center outside Dublin became the first in Europe to turn to an independent, so-called "islanded," microgrid to keep its servers running, with AVK and Pure DC saying their Dublin installation is the first data center in Europe to be operated by a live microgrid , CNBC reported in March. The global microgrid market was worth around $29 billion in 2025, with Europe's market expected to grow by nearly 10% per year due to its aging infrastructure , according to Global Market Insights. But microgrids are still rare in Europe compared to the U.S., where Texas and Virginia have seen widespread adoption.
