EU data centre rating: what the A to G label grades, and when
The Commission's rating act, adopted but not yet in force, would grade only PUE and WUE, A to G. What sets your class, and what goes public.
Alex Turner
Alex Turner is an engineer who works on data centre infrastructure. He writes about data centres as physical buildings, where the choices are forced by heat and by the grid long before anyone decides them.
Small Modular Reactor for a Data Centre: How It Works, What It Takes
How an SMR makes power, which designs are licensed, which data-centre deals are signed, and what 100 MW and 1 GW campuses need.
Carbon-aware computing in Europe: what shifting load saves
Shifting flexible compute to cleaner hours cuts reported emissions, but the saving depends on country, window and signal. Evidence and a checklist.
EnEfG Hearing: Six Statements on Germany’s Data-Centre Rules
The Bundestag hears the EnEfG bill on 5 October. What it changes for data centres and what six statements tell MPs.
Cosmic Rays and Silent Data Corruption in Data Centres
Cosmic-ray neutrons are real, but field studies point to hardware defects behind most DRAM faults and the silent core errors operators have traced.
EU Data Centre PUE 2025: Benchmarks by Size and Country
773 sites reported 2025 operations to the EU database at PUE 1.27. Benchmarks by size and country, and why the fall from 1.36 is not a trend.
EU Data Centre Minimum Performance Standards: What to Submit by 14 December
The EU is consulting on possible performance floors for data centres, not enforcing them. What is being decided, and the evidence operators should submit.
European Data Centre Regulation Tracker: Rules, Status, Deadlines
Every EU, German, French, Irish and Dutch data-centre energy rule in one table, with exact thresholds, current status and the next date to act.
EU Data Centre Reporting Under the EED: What to Report and When
Who must report under the EU Energy Efficiency Directive, the 24 indicators, deadlines, what stays confidential, and a worked PUE, WUE, ERF, REF example.
OVHcloud Data Centre Fire: How Its Cheapest Design Lost Everything
OVHcloud's SBG2 fire traces back to its free-cooling design: the chimney that made it cheap left no sealed room for a gas system to work.