Where is Europe building data centers?

Instead of mapping where data centers are today, the better question to ask is where the future ones will be.

What is running today reflects decisions made years ago. What is under construction now is the better read on where capacity is heading. Announcements are cheap, but capital only goes into the ground once a project is committed: grid connection secured, consents in hand, financing closed.

The US leads by a distance, but that is the familiar story. Here we focus on Europe, where multiple countries are following suit, the race is closer, and grid limits matter as much as demand.

From the Aegir Insights Data Center Database, mapping 10,000+ data centers globally, we summed disclosed capacity under construction across every European market, all data-center types, each facility traced to a primary source.

The top five

• United Kingdom: ~1,700 MW
• Germany: ~1,580 MW
• France: ~650 MW
• Switzerland: ~560 MW
• Ireland: ~500 MW

Two tiers stand out: the UK and Germany together carry nearly double the other three combined.

These are conservative totals. We count only capacity that operators have publicly disclosed, so the real figures most likely sit higher.

Ireland is the one to watch: lowest of the five today, but with Dublin's grid moratorium lifted late 2025, its wider pipeline could run far ahead of this figure.

The common thread is the grid

That is why we map every data center next to the infrastructure that has to feed it: substations, transmission, interconnectors, and the renewable pipeline being built to power it. We also track each project's development and maturity, so you can tell real progress from a press release.

Reach out for a walk-through: get in touch.