Zakon o energetskoj učinkovitosti Article 38 and Article 62, Obligations of Data Centre Operators
In forceZakon o energetskoj učinkovitosti, Narodne novine 155/2025, čl. 38 i 62
Effective 2026-01-01 · Applies to both
Article 38(1) requires the operator of a data centre in Croatia with an installed information technology power of 500 kW or more to submit data on the data centre to the European data centre database every year. The data must be submitted by 15 May of the current year for the previous year. Data centres used for defence and civil protection, or providing their services exclusively for those ends, are exempt from the duty to submit data.
An operator must notify the Ministry by letter if the installed information technology power falls below 500 kW. An operator of a data centre with an installed information technology power of 1 MW or more must carry out energy efficiency measures and give priority to the use of waste heat, in accordance with the rules governing the heat energy market. The operator must enter information on those measures into the system for monitoring, measuring and verifying energy savings.
The Act defines a data centre by reference to point 2.6.3.1.16 of Annex A to Regulation (EC) 1099/2008. Electricity inspectors of the State Inspectorate carry out inspection supervision of the Act. An inspector may order a data centre operator to submit the data to the European data centre database. Article 62(1) sets a fine of 2,650 to 66,360 euro for a legal person operating a data centre that fails to meet these duties.
Article 62(2) sets a fine of 260 to 1,990 euro for the responsible person in the operator. Article 62(3) sets a fine of 1,320 to 6,630 euro for a natural person who operates a data centre. The Act was published in Narodne novine 155/2025 on 23 December 2025. The Act entered into force on 1 January 2026. On the day the Act entered into force, the earlier Energy Efficiency Act ceased to apply.
Source: Full text of law