Summary Under the proposed Cloud and AI Development Act (CADA), the reuse of waste heat is a mandatory planning consideration for data centre deployment, not merely an optional sustainability bonus. When Member States designate "data centre acceleration zones," they are legally required to evaluate the availability of facilities capable of reusing data centre waste heat, as explicitly mandated by Article 10(1)(e). This provision ensures that new compute capacity is integrated into local energy ecosystems to maximise sustainability. While the proposal does not prescribe specific technical recovery methods for every operator, it mandates that the designation of zones and the subsequent permitting processes account for heat recovery potential. To streamline this complex cross-sectoral coordination, CADA establishes single information points (Article 12) which are explicitly tasked with handling authorisations regarding "heat utilisation and recovery," thereby reducing administrative fragmentation for operators.

Detail

The Cloud and AI Development Act (CADA), as proposed in COM(2026) 502 final, establishes a comprehensive framework to accelerate the deployment of data centres across the European Union while enforcing strict environmental sustainability. A critical, yet often overlooked, component of this framework is the integration of circular economy principles through the reuse of waste heat generated by data centre operations. This is not a peripheral recommendation but a core element of the regulatory architecture for data centre capacity.

The Strategic Role of Acceleration Zones

To address the EU's significant compute capacity gap, CADA requires Member States to designate "data centre acceleration zones" within their territories. As outlined in Article 10, these are specific geographic areas where the development, expansion, and modernisation of data centres are facilitated through streamlined permitting, infrastructure planning, and regulatory predictability. The objective is to create environments that are attractive to investment while ensuring that this expansion does not come at the expense of environmental goals.

When designating these zones, Member States cannot act arbitrarily; they must evaluate a specific set of criteria to ensure that the infrastructure is both viable and environmentally responsible. Article 10(1) lists the aspects Member States must consider. Crucially, Article 10(1)(e) explicitly requires Member States to consider:

"the available and future facilities that can reuse data centre waste heat;"

This provision embeds waste heat reuse directly into the foundational planning stage of the acceleration zone. It signals that a data centre's value proposition within the EU is increasingly tied to its ability to contribute to local heating networks, district heating systems, or industrial processes that can utilise low-grade heat. By making this a mandatory consideration in the designation of acceleration zones, the proposal aims to prevent the deployment of data centres in locations where waste heat would simply be dissipated into the atmosphere, thereby wasting a significant energy resource. The recitals further clarify that data centres are critical infrastructure that can support clean energy growth and the sustainable use of energy, provided that negative impacts like energy supply stress are prevented.

Integration with Broader Energy Planning

The consideration of waste heat reuse under Article 10(1)(e) is not an isolated requirement; it is intrinsically linked to a broader energy planning obligation. Under Article 10(2)(a), Member States must conduct a comprehensive analysis of the energy needs and their respective impacts on greenhouse gas emissions for current and future acceleration zones. This analysis must identify the required energy infrastructure capacity, including the potential for anticipatory investments.

This analysis feeds directly into national network development plans prepared by transmission and distribution system operators, as referenced in Article 10(2)(b). By integrating waste heat potential into these plans, Member States can coordinate the build-out of data centres with existing or planned heating infrastructure. For instance, if a district heating network is being expanded nearby, a data centre in an acceleration zone could be designed to feed into that network. This coordination reduces the need for separate heating sources, lowers overall carbon emissions, and aligns with the EU's broader climate and environmental objectives. The proposal explicitly notes that reliable and accurate information on future energy demand contributes to cost-effective grid development, and that Member States should facilitate clear and efficient procedures for grid connection.

Administrative Support: The Single Information Point

Navigating the regulatory landscape for waste heat reuse can be complex. It often involves permits for heat extraction, connection to municipal networks, environmental assessments, and coordination between data centre operators, local municipalities, and energy utilities. CADA addresses this fragmentation through the establishment of single information points under Article 12.

Under Article 12(2), the role of the single information point includes coordinating, facilitating, monitoring, and sharing information on procedures relating to various authorisations. Specifically, Article 12(2)(c) lists:

"authorisations regarding water abstraction, wastewater discharge, and heat utilisation and recovery;"

This explicit inclusion ensures that data centre operators do not need to navigate multiple bureaucratic silos to secure permission for heat recovery systems. The single information point acts as a central hub, assisting operators throughout the entire lifecycle of the project. This is particularly crucial for waste heat reuse, which often requires cross-sectoral coordination. The single information point is also tasked with assisting in assessing whether a data centre project may qualify as a strategic project under Article 14, further integrating heat reuse considerations into the strategic designation process.

Sustainability Requirements and KPIs

The mandate to consider waste heat reuse aligns with the broader sustainability requirements for acceleration zones. Under Article 11(1), Member States must set sustainability requirements for data centres deployed in these zones using the key performance indicators (KPIs) specified in Delegated Regulation (EU) 2024/1364. While these KPIs primarily focus on metrics such as Power Usage Effectiveness (PUE) and water usage efficiency, the consideration of waste heat reuse in Article 10(1)(e) ensures that thermal efficiency and the potential for heat recovery are part of the holistic sustainability assessment.

Furthermore, Article 11(2) requires that the allocation and use of resources within acceleration zones take place on fair, reasonable, and non-discriminatory terms. This prevents speculative reservation of land or energy connections, ensuring that data centre operators who genuinely intend to implement waste heat reuse solutions have equitable access to the necessary infrastructure and permits. The proposal also emphasises that Member States should promote the uptake of power purchasing agreements (PPAs) and facilitate clear procedures for grid connection, which are essential for the economic viability of heat recovery projects.

What this means for you

For CTOs, data centre architects, infrastructure investors, and SMEs evaluating data centre projects in the EU, the CADA proposal introduces several practical implications regarding waste heat reuse:

  1. Site Selection Strategy: When identifying potential sites for new data centres, prioritise locations within designated acceleration zones that have existing or planned heat reuse infrastructure. The presence of nearby district heating networks or industrial facilities capable of utilising waste heat will make your project more compliant with national planning objectives under Article 10(1)(e) and potentially faster to permit. Sites lacking such facilities may face greater scrutiny or require more complex justification.
  2. Early Engagement with Single Information Points: Engage with the designated single information point early in the design phase. Since Article 12(2)(c) explicitly places "heat utilisation and recovery" authorisations under their coordination, understanding the local regulatory requirements for heat recovery systems upfront can prevent delays. Be prepared to demonstrate how your design facilitates heat extraction and transfer to local facilities.
  3. Design for Flexibility and "Heat-Readiness": Architect your data centre's cooling systems to allow for future integration with heat reuse networks. Even if immediate heat reuse is not feasible due to the current state of local infrastructure, designing for "heat-ready" infrastructure can future-proof your investment against evolving sustainability regulations and market demands. This aligns with the proposal's goal of tripling EU data centre capacity while ensuring sustainability.
  4. Stakeholder Coordination: Proactively engage with local municipalities and energy utilities. Demonstrating a clear plan for waste heat reuse can strengthen your case for support from local authorities and may align with broader regional energy efficiency goals. This coordination is essential, as the single information point will be assessing your project's alignment with the zone's energy analysis under Article 10(2).
  5. Monitoring Strategic Project Status: Be aware that projects with highly sustainable or innovative features, which could include advanced heat reuse, may qualify as "strategic projects" under Article 14. Such designation could unlock additional support measures and streamlined permitting, making the investment in heat recovery infrastructure even more attractive.

Common misconceptions

"CADA mandates that all data centres must actively reuse waste heat." No. CADA requires Member States to consider available and future facilities for waste heat reuse when designating acceleration zones (Article 10(1)(e)). It does not impose a direct, absolute technical obligation on every single operator to implement heat reuse in all circumstances. However, it creates a planning environment that strongly incentivises it. Operators in acceleration zones will face pressure to align with local sustainability goals, which often include heat recovery, and the permitting process will be streamlined for those who do.

"Waste heat reuse is only relevant for large hyperscale data centres." Incorrect. While larger facilities generate more heat, the principle applies to all data centres in acceleration zones. SMEs and mid-sized operators can also benefit from heat reuse, particularly in regions with district heating systems. The single information point (Article 12) is explicitly designed to assist operators of all sizes, including SMEs, in navigating these requirements and ensuring fair access to resources.

"Heat reuse authorisations are handled separately from other environmental permits." This is a misconception. The single information point coordinates authorisations for heat utilisation and recovery alongside other permits such as water abstraction, wastewater discharge, and building permits (Article 12(2)). This integrated approach is designed to reduce administrative burden and ensure that heat reuse is considered holistically within the project's environmental impact assessment and permitting process.

"The KPIs in Delegated Regulation 2024/1364 cover everything." While Delegated Regulation (EU) 2024/1364 sets the KPIs for sustainability (like PUE), it does not replace the specific planning requirement of Article 10(1)(e). The regulation requires Member States to consider the availability of facilities for heat reuse, which is a spatial and infrastructural consideration distinct from the operational efficiency metrics in the Delegated Regulation. Both must be addressed.

Related

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