Spain proposes strict green and sovereignty rules for data centers to curb 12 GW permit surge

New operating standards

The Spanish government is launching an urgent public consultation on a draft royal decree that establishes strict operating and sustainability criteria for data centers. The draft decree, prepared directly with Moncloa and led by the Ministry for the Ecological Transition, the Ministry for Digital Transformation, and the Ministry of Economy, targets facilities with an electrical capacity exceeding 1 megawatt. The initiative develops mandates outlined in Royal Decree-law 7/2026 from March, which addressed energy vulnerabilities and access hoarding following tensions in the Middle East. Under the proposed framework, developers must submit responsible declarations committing to rigorous environmental, technical, and governance standards before receiving or maintaining grid access. The centralized framework applies to all planned facilities that have not yet secured grid access permits, including projects previously announced by regional governments in hubs such as Madrid and Aragon.

Renewable matching and efficiency ratings

Facilities governed by the decree will have to match 80% of their electricity consumption on an hourly basis with new renewable generation located within Spain. Operators must secure this power either through dedicated self-generation assets or through power purchase agreements with third parties for the exact hours of operation. In addition, the draft requires data centers to achieve Category A status, the highest tier in the European Union energy and water efficiency labelling framework. This labelling system, originating from the 2023 Energy Efficiency Directive, is scheduled to enter into force under EU regulations in August 2027. By imposing this condition in advance, the administration aims to ensure that only facilities with low water consumption and minimal environmental impact move forward.

Digital sovereignty and enforcement mechanisms

Beyond environmental metrics, the regulation introduces strict digital sovereignty rules for infrastructure operating in Spain. Data center operators must be legal entities established within the European Union and must retain operational information within EU territory. Operators are also required to implement operational safeguards preventing unauthorized data access by foreign authorities operating outside European Union law. The Ministry for Digital Transformation will verify compliance with all declared commitments. If an operator breaches the conditions, the executive holds the authority to impose financial penalties, issue regulatory sanctions, or cancel grid access and connection rights entirely.

Managing grid capacity and speculative demand

Moncloa designed the decree to prevent grid congestion and curb speculative applications that threaten electricity distribution for industry and housing. Electrical grid operators have already granted data centers approximately 12.5 gigawatts of connection capacity since 2021, with developers preparing or filing applications for an additional 20 gigawatts. The volume of granted permits equals the generation capacity of 12 nuclear power plants. These figures sharply exceed the national Artificial Intelligence Strategy, which forecasts a data center power demand of 3.5 to 4 gigawatts by 2030, while industry association SpainDC projects between 2.6 and 3 gigawatts. Typical daily power consumption across Spain rarely exceeds 40 gigawatts, meaning existing data center permits represent nearly a third of standard national electricity use. Government officials observed that opportunistic firms and real estate developers have hoarded permits to resell them, mirroring challenges seen in Ireland, the Netherlands, and the United States, where rapid data center growth led to electricity price increases and local moratoriums. Government representatives scheduled discussions with SpainDC and tech association Ametic, maintaining that the framework avoids a formal moratorium or a fixed quota.

There is no numerus clausus.