Summary The proposed Cloud and AI Development Act (CADA) does not pre-select specific cities or regions in Bulgaria for data centre acceleration zones. Instead, Article 10 obliges Bulgaria to designate at least one such zone within six months of the regulation's entry into force, provided data centre capacity is being deployed there. The specific locations will be determined by Bulgarian authorities based on strict criteria including grid capacity, network connectivity, waste-heat reuse potential, and a preference for brownfield sites. Once designated, these zones must adhere to sustainability Key Performance Indicators (KPIs) from Delegated Regulation (EU) 2024/1364 and ensure fair, non-discriminatory resource allocation.

Detail

The proposed Cloud and AI Development Act (CADA), COM(2026) 502 final, introduces a harmonised EU framework designed to accelerate the deployment of sustainable and innovative computing capacity. For Bulgaria, as for all Member States, this represents a shift from fragmented national permitting processes to a structured, accelerated regulatory environment centred on "data centre acceleration zones." These zones are intended to address the Union's compute capacity gap and enhance technological resilience by creating clear, streamlined pathways for infrastructure development.

The Obligation to Designate Zones

Under Article 10(1) of the proposed regulation, any Member State where data centre capacity is being deployed must designate at least one data centre acceleration zone ("acceleration zone") within its territory. This designation must occur no later than six months after the regulation enters into force. The purpose of these zones is to facilitate the development, expansion, and modernisation of data centres through a clear and streamlined regulatory framework.

Bulgaria is not exempt from this requirement. If the country is deploying data centre capacity, it must identify and formally designate these zones. The designation is not automatic; it requires a proactive assessment by national, regional, and local authorities to ensure the selected areas meet the strategic and technical criteria outlined in the proposal. The regulation explicitly states that Member States shall designate these zones "where data centre capacity is being deployed," ensuring the framework targets active markets rather than theoretical ones.

Criteria for Designation

The proposal provides a detailed checklist for Member States to consider when designating acceleration zones. According to Article 10(1)(a)–(h), Bulgarian authorities must evaluate the following eight specific aspects:

  • Site Dimensions and Location (Article 10(1)(a)): Authorities must assess the location and dimension of the site or area, including the minimum and maximum size of facilities that could be built there. This ensures that the zone can accommodate large-scale, high-density compute infrastructure required for modern AI and cloud workloads.
  • Power Grid Capacity (Article 10(1)(b)): A critical factor is the availability of current and future power grid capacity. The assessment must also consider the possibility and conditions for on-site storage and clean energy generation. Given the energy-intensive nature of data centres, proximity to robust grid infrastructure is a prerequisite.
  • Network Connectivity (Article 10(1)(c)): The zone must have access to available and future network connectivity capacity. Low-latency, high-bandwidth connectivity is essential for cloud and AI services, making fibre-optic infrastructure and exchange points a key consideration.
  • Legacy Network Phase-Out (Article 10(1)(d)): The zone should support the phasing out of legacy copper networks, aligning with broader EU digital infrastructure goals.
  • Waste Heat Reuse (Article 10(1)(e)): Sustainability is a core pillar of CADA. Authorities must assess the capacity of the zone to support facilities that can reuse data centre waste heat. This encourages integration with local heating networks, turning data centres into energy-positive assets for surrounding communities.
  • Permitting Acceleration (Article 10(1)(f)): The designation must account for all measures taken to accelerate the granting of necessary permits for constructing and operating data centres within the zone. This ties into the broader permitting reforms in Title III of the proposal.
  • Brownfield Preference (Article 10(1)(g)): There is a clear preference for reusing brownfield sites (previously developed land) over greenfield sites. This aligns with EU environmental objectives to minimise land-use change and promote urban regeneration.
  • Sustainability and Climate Resilience (Article 10(1)(h)): The site must be able to function sustainably, particularly regarding the prevention or minimisation of environmental impacts, the reduction of carbon emissions, and climate resilience.

Conditions Within Acceleration Zones

Once designated, specific conditions apply to data centres deployed within these zones. Article 11 sets out two primary obligations for Member States regarding the operation of these zones:

  1. Sustainability KPIs (Article 11(1)): When setting sustainability requirements for data centres in acceleration zones, Member States must use the key performance indicators (KPIs) specified in Commission Delegated Regulation (EU) 2024/1364, pursuant to Directive (EU) 2023/1791. These KPIs, which include metrics such as Power Usage Effectiveness (PUE) and Water Usage Effectiveness (WUE), ensure consistent environmental standards across the EU. Bulgaria will be required to enforce these specific metrics for any data centre operating within its designated acceleration zones. It is important to note that these KPIs are defined in the Delegated Regulation, not enumerated directly in the CADA text itself.
  2. Fair Resource Allocation (Article 11(2)): Member States must ensure that the allocation and use of resources within acceleration zones take place on fair, reasonable, and non-discriminatory terms. This provision is designed to prevent speculative reservation of resources (such as land or grid connections) that could impede effective competition or delay the development of the zone. It ensures that committed operators can access the necessary infrastructure without being blocked by holdouts or discriminatory practices.

Energy Planning and Coordination

The proposal also mandates close coordination between data centre deployment and energy planning. Article 10(2) requires Member States to conduct a comprehensive analysis of the energy needs and greenhouse gas emission impacts of current and future acceleration zones. This analysis must be reviewed at least every three years. Crucially, this data must feed into national network development plans prepared by transmission and distribution system operators. This ensures that grid investments are anticipatory, reducing the risk of connection delays for data centre projects.

Accelerated Permitting and Strategic Projects

The designation of an acceleration zone triggers significant procedural benefits. Under Article 13, data centre projects deployed in these zones are considered "strategic projects" within the meaning of the Regulation on speeding-up environmental assessments (referenced as Regulation (EU) 2026/XXX in the proposal). This status allows them to benefit from a dedicated toolbox for accelerated environmental assessments.

Furthermore, Article 13(5) establishes a strict timeline: the permit-granting procedure for data centre projects deployed in data centre acceleration zones shall not exceed 12 months from the moment a comprehensive application has been submitted. This is a significant reduction compared to standard permitting timelines, providing the predictability required for large-scale infrastructure investment.

Additionally, Article 14 allows the Commission to designate specific data centre projects within these zones as "strategic projects" if they meet criteria such as supporting essential public sector functions, including highly sustainable features, or addressing major shortages of compute capacity.

What this means for you

For CTOs, architects, and SMEs evaluating the practical impact of CADA on their operations in Bulgaria, the establishment of acceleration zones offers both opportunities and new compliance realities.

Accelerated Permitting and Predictability Operating within a designated acceleration zone will likely result in significantly faster permitting timelines. Article 13 of the proposal stipulates that permit-granting procedures for data centres in these zones should not exceed 12 months from the submission of a comprehensive application. For businesses, this reduces the uncertainty and capital expenditure associated with prolonged regulatory waits. The "aggregated baseline permit" mentioned in Article 13(2) will cover most permits required for the zone, excluding only installation-specific permits, further streamlining the process.

Strategic Site Selection When evaluating potential locations for new data centre facilities or colocation services in Bulgaria, you should prioritise areas that align with the Article 10 criteria. Specifically:

  • Grid Access: Prioritise sites with confirmed access to high-capacity grid connections and potential for on-site renewable generation. The requirement for anticipatory grid planning in Article 10(2) suggests that zones with strong utility partnerships will be designated.
  • Brownfield Opportunities: Given the preference for brownfield sites in Article 10(1)(g), repurposing existing industrial or commercial properties may offer a strategic advantage in securing designation within an acceleration zone.
  • Waste Heat Integration: For larger deployments, investigate the potential for waste heat reuse. This not only helps meet the sustainability criteria of Article 10(1)(e) but may also open up revenue streams or partnerships with local municipalities.

Compliance with Sustainability KPIs Operators must prepare to adhere to the specific KPIs outlined in Delegated Regulation (EU) 2024/1364, as mandated by Article 11(1). This means your technical architecture and operational processes must be designed to monitor and report on metrics like PUE and WUE. Failure to meet these standards could jeopardise your ability to operate within an acceleration zone or secure strategic project status.

Fair Competition The non-discriminatory resource allocation rule in Article 11(2) protects operators from speculative hoarding. If you are an SME or a smaller provider, this provision ensures that you have a fair chance to access land, grid connections, and other critical resources within the zone, provided you have a genuine project intent.

Single Information Points Under Article 12, Member States must designate single information points for data centre operators in acceleration zones. These points will assist operators throughout the entire lifecycle of the project, coordinating spatial planning, environmental assessments, and grid connections. This provides a "one-stop-shop" for administrative support, reducing the burden on operators to navigate multiple agencies.

Common misconceptions

Misconception 1: CADA designates specific locations in Bulgaria. CADA does not pre-select cities or regions. It sets the legal framework and criteria. The actual designation of acceleration zones is the responsibility of Bulgarian national and local authorities. They will choose the zones based on the criteria in Article 10, likely focusing on areas with existing infrastructure, grid capacity, and industrial land.

Misconception 2: All data centres in Bulgaria will be in acceleration zones. No. Article 10 requires the designation of at least one zone where capacity is being deployed. Data centres outside these zones will still operate but may face longer permitting timelines and less streamlined administrative support. The acceleration zones are intended to be hubs for rapid, sustainable capacity expansion.

Misconception 3: Sustainability requirements are optional. Under Article 11(1), the use of specific KPIs from Delegated Regulation (EU) 2024/1364 is mandatory for data centres in acceleration zones. This is not a voluntary best practice but a legal requirement for operating within these designated areas.

Misconception 4: Brownfield preference means greenfield sites are banned. Article 10(1)(g) states a "preference" for brownfield sites, not a prohibition on greenfield development. However, greenfield projects may face higher scrutiny regarding environmental impact and sustainability, as outlined in Article 10(1)(h).

Misconception 5: The 12-month permit limit applies to all projects. The 12-month limit in Article 13(5) applies specifically to data centre projects deployed within designated acceleration zones. Projects outside these zones are subject to national permitting rules, which may be longer.

Related

This is general information about a draft EU regulation, not legal advice.