Data centre regulation in Greece
Our tracker lists 12 rules for building and running a data centre in Greece, national and EU, and 8 of them are in force.
Each comes with its status, who it applies to and the next date that matters. When a rule here changes, the change is logged below with its date.
- 8 of 12rules that apply, in forceRegulation tracker, updated 19 Oct 2026
- 4not yet in forceproposed, adopted or in scrutiny
- 14 Dec 2026next date, EURegulation tracker, updated 19 Oct 2026
Rules that apply in Greece
National rules first, then the EU rules every member state applies. Status as on the tracker.
| Rule | Level | Status | Applies to | Next date |
|---|---|---|---|---|
| Law 4342/2015, article 10A (data centre key performance indicators), inserted by article 46 of Law 5164/2024 | National | In force since 12 December 2024 (Law 5164/2024, Government Gazette A 202 of 12 December 2024) | New and existing sites. Operators of data centres with installed IT power demand of at least 500 kW report the information and key performance indicators of Delegated Regulation (EU) 2024/1364 to the European database; operators at 1 MW or more must take account of the EU Code of Conduct best practices; centres used exclusively for defence and civil protection excluded. A ministerial decision is to set the compliance check and the competent authority | 15 May 2027 (annual deadline 15 May) |
| Law 4442/2016, articles 320 to 328 (notification of operation of data centres), added by article 3 of Law 5069/2023; joint ministerial decision 96038 (procedure, fees and fines) | National | In force since 28 November 2023 (Law 5069/2023, Government Gazette A 193 of 28 November 2023); procedure set by joint ministerial decision 96038, Government Gazette B 7589 of 31 December 2024, effective two months after publication | Data centres serving third parties, in part or exclusively, with total nominal IT electrical power of at least 200 kW; data centres for own use only at 1,000 kW or more. Notification goes to the regional development service before operation starts; fee 500 to 4,000 euros by IT power band; fines 1,000 to 20,000 euros for failing to notify or giving false data | No date published |
| Law 4442/2016, articles 329, 330 and 333 (land use, building and fire classification of data centres), and Law 4759/2020 article 33 paragraph 3 point (i) as replaced by article 5 of Law 5069/2023 (building terms) | National | In force since 28 November 2023 (Law 5069/2023) | New and existing sites. All data centres: special land use category 21.A; maximum building coefficient 0.8, coverage 60%, side distances 10 m and volume coefficient 6. Centres with IT electrical power of 200 kW or more are treated as category I (industry) for building rules, smaller ones as offices. Standalone data centres, and data centres that wholly serve another business they share a building or site with, that were operating before 28 November 2023 must meet the article 330 building requirements within three years of entry into force | 28 November 2026: deadline for standalone and in-house data centres operating before 28 November 2023 to meet the article 330 building requirements |
| Ministerial decision 17185/1069/2022, Annex XII, group 12, item 20 (environmental classification of data centres), and ministerial decision 82255/5190/2025 (standard environmental commitments for category B data centres) | National | In force since 29 July 2025 for the standard environmental commitments (Government Gazette B 4095 of 29 July 2025); classification set by the decision of 21 February 2022 (Government Gazette B 841 of 24 February 2022) | Data centres classified by installed electrical power P in MW: subcategory A2 at P of 20 MW or more; category B from 2 MW up to 20 MW, which files a declaration under the standard environmental commitments | No date published |
| Law 5160/2024 (NIS2 transposition), articles 6 and 19 (register of digital infrastructure entities) | National | In force since 27 November 2024 (Government Gazette A 195 of 27 November 2024) | New and existing sites. Data centre service providers in scope of the law (medium-sized enterprises and larger) must submit their registration details to the National Cybersecurity Authority; the statutory deadline for existing providers was 17 January 2025 | No date published |
| Ministry of Environment and Energy bill on electricity market design (transposing Directive (EU) 2024/1711), data centre provisions | National | Draft published for consultation 10 October 2026, open until 24 October 2026; not yet before parliament | Grid applicants and new sites. Data centres connecting to the grid: investors bear the full cost of connection and of grid reinforcement caused solely by the data centre; guarantee of 200,000 euros per MW; turnover-based financial adequacy test for transmission-connected projects; stricter maturity criteria for a final connection offer; new data centres cover at least 60% of yearly electricity use from renewables; a Data Centre Register at the energy regulator | 24 October 2026: public consultation closes |
| EED reporting, Article 12 and Delegated Regulation 2024/1364 | EU | In force | New and existing sites. Data centres ≥500 kW installed IT power | 15 May 2027, next annual report |
| EED waste heat, Article 26(6) | EU | In force | New and existing sites. Data centres >1 MW total rated energy input | Ongoing duty |
| EED energy management systems, Article 11 | EU | In force as a Directive duty on Member States; deadline not yet reached | Enterprises, including data-centre operators, with average annual energy consumption above 85 TJ (23.6 GWh) over the previous three years, all energy carriers together | 11 October 2027, certified energy management system in place |
| EU rating scheme, delegated regulation adopted 21 Sep 2026 | EU | Adopted, in Parliament and Council scrutiny | New and existing sites. Same ≥500 kW reporting population | In force 20 days after Official Journal publication, if not objected to |
| EU minimum performance standards | EU | Consultation open | Not yet defined | 14 December 2026, consultation closes |
| Cloud and AI Development Act, COM(2026) 502 | EU | Proposal, with Parliament and Council | Cloud and AI infrastructure providers broadly | No fixed date |
Greece in detail
What the national rules say, with the legal texts.
Greece regulates data centres mainly through Law 5069/2023, in force since 28 November 2023: a centre serving third parties needs a notification before it operates from 200 kW of IT power (1,000 kW for own use), building and fire rules follow the same 200 kW line, and standalone or in-house centres that were already running have until 28 November 2026 to meet them. Operators with at least 500 kW of installed IT power must also report to the European database every year, under a duty in force since 12 December 2024. A bill put to public consultation on 10 October 2026 would make data centres pay their full grid connection and reinforcement costs, post a guarantee of 200,000 euros per MW and cover at least 60% of yearly consumption from renewables for new sites.
Dates to watch
The next dates for Greece and the EU, soonest first.
- 14 Dec 2026The EU Commission's minimum performance standards consultation and call for evidence closes
- 15 May 2027EU database dueevery year
- 11 Oct 2027EU deadline under Article 11 of the Energy Efficiency Directive for a certified energy management system at enterprises above 85 TJ (23.6 GWh) of annual energy consumption
Formal refusals and bans since 2025
Verified decisions only.
No formal refusal or ban recorded for Greece; absence is not evidence of low planning risk.
Decisions from 1 Jan 2025; statuses checked 21 Oct 2026.
What changed
The latest changes to these rules on the tracker, newest first.
- 18 Oct 2026Added to the tracker: EED energy management systems, Article 11 (In force as a Directive duty on Member States; deadline not yet reached).
- 15 Oct 2026Added to the tracker: Law 4342/2015, article 10A (data centre key performance indicators), inserted by article 46 of Law 5164/2024 (In force since 12 December 2024 (Law 5164/2024, Government Gazette A 202 of 12 December 2024)).
- 15 Oct 2026Added to the tracker: Law 4442/2016, articles 320 to 328 (notification of operation of data centres), added by article 3 of Law 5069/2023; joint ministerial decision 96038 (procedure, fees and fines) (In force since 28 November 2023 (Law 5069/2023, Government Gazette A 193 of 28 November 2023); procedure set by joint ministerial decision 96038, Government Gazette B 7589 of 31 December 2024, effective two months after publication).
- 15 Oct 2026Added to the tracker: Law 4442/2016, articles 329, 330 and 333 (land use, building and fire classification of data centres), and Law 4759/2020 article 33 paragraph 3 point (i) as replaced by article 5 of Law 5069/2023 (building terms) (In force since 28 November 2023 (Law 5069/2023)).
- 15 Oct 2026Added to the tracker: Ministerial decision 17185/1069/2022, Annex XII, group 12, item 20 (environmental classification of data centres), and ministerial decision 82255/5190/2025 (standard environmental commitments for category B data centres) (In force since 29 July 2025 for the standard environmental commitments (Government Gazette B 4095 of 29 July 2025); classification set by the decision of 21 February 2022 (Government Gazette B 841 of 24 February 2022)).
- 15 Oct 2026Added to the tracker: Law 5160/2024 (NIS2 transposition), articles 6 and 19 (register of digital infrastructure entities) (In force since 27 November 2024 (Government Gazette A 195 of 27 November 2024)).
- 15 Oct 2026Added to the tracker: Ministry of Environment and Energy bill on electricity market design (transposing Directive (EU) 2024/1711), data centre provisions (Draft published for consultation 10 October 2026, open until 24 October 2026; not yet before parliament).
Questions
Which rules apply to a data centre in Greece?
Our tracker lists 12 rules for building and running a data centre in Greece, national and EU, and 8 of them are in force.
What is the next date for data centre rules in Greece?
The next date is 14 Dec 2026: the EU Commission's minimum performance standards consultation and call for evidence closes.
Sources
From the European data-centre regulation tracker, which cites the legal text for every rule. Data-centre market data for Greece.
Not legal advice. Confirm each duty against the text itself.