# Rules tracker: data center grid connections in Europe

> A dated tracker of the rules that decide where data centers can connect in Europe: who sets them, what they require, and what they change for a site. Each entry links the primary text.

- [Spain RDL 7/2026: what it changes for data center grid access](https://ampervia.com/rules/spain-rdl-7-2026-data-centers/) — Real Decreto-ley 7/2026 of 20 March 2026 requires every demand access and connection permit to state the **CNAE activity code** it will serve. The connected site must keep that activity for **three years** or the permit 
- [Italy DL 21/2026: the single authorisation for data centers](https://ampervia.com/rules/italy-dl-21-2026-data-centers/) — Article 8 of Italy’s Decree-Law 21/2026 (converted by Law 49/2026) puts a data center and its grid connection into a **single authorisation procedure**, and allows a **temporary medium-voltage connection** in the project
- [Lombardy Regional Law 11/2026: data centers on brownfield land](https://ampervia.com/rules/lombardy-lr-11-2026-data-centers/) — Lombardy’s Regional Law 11/2026 is Italy’s first regional framework for data centers. It rewards building on **brownfield** land (construction charges cut by 10–30%, set by each municipality) and penalises farmland (char
- [FLAP-D grid connection thresholds for data centers](https://ampervia.com/rules/flap-d-grid-connection-thresholds/) — In Europe’s core markets, rationing starts at small sizes: **3.5 MW** in Frankfurt (above 1 MW in local bottlenecks), **3.5 MVA** in Berlin, **5 MVA** with a 2,000 m² floor cap in Amsterdam, about **40 MW** before a Pari
- [Ireland’s data centre grid connection rules](https://ampervia.com/rules/ireland-data-centre-connection-rules/) — Ireland’s energy regulator (CRU) decided in December 2025 to tier data centre connections by maximum import capacity. Below **1 MVA** a site is exempt; from 1 to 10 MVA it must provide an **autoproducer unit covering 100