With the rise of AI, data centers are emerging as new investment assets. Private equity and infrastructure funds are increasingly viewing data centers as key investment targets. However, data centers differ significantly from traditional real estate or industrial facilities. Simply acquiring the building and land does not guarantee stable returns. To operate and expand, various conditions such as power supply, cooling, equipment, and permits must be met.
This makes it crucial to assess not only the physical assets in data center M&A but also the environmental responsibilities and operational risks involved. The primary goal of environmental due diligence is not vastly different from that of other businesses. It is essential to check for soil and groundwater contamination, oil storage facilities, hazardous materials and waste management, compliance with environmental permits and regulations, and potential liabilities from past environmental pollution.
However, a more meticulous approach is required for environmental due diligence in data centers, as their environmental risks are closely linked to key equipment. For instance, merely confirming the presence of emergency generators is insufficient. It is necessary to examine the type and installation year of the fuel tank, decommissioning history, fuel unloading points, buried pipes, leak detection and containment systems, and past incident records. The fact that it is labeled as 'equipment used only in emergencies' does not eliminate the possibility of leaks or contamination.
The same applies to transformers and batteries. The environmental considerations differ based on whether the transformer is oil-filled or dry, and whether the battery is lead-acid or lithium-ion. For older oil-filled transformers, it is important to verify information and management records related to insulating oil, but one should not assume contamination based solely on the presence of a transformer. Risks must be assessed based on the specifications and history of the actual equipment.
Cooling systems also require careful examination during environmental due diligence for data centers. The type of cooling—whether it uses cooling towers, closed-loop cooling, direct water cooling, or immersion cooling—affects the substances used and management practices. It is necessary to check the composition of chemicals or cooling fluids used, storage and leak history, and drainage connections. Additionally, since data halls are leased spaces and generators, fuel tanks, and transformer equipment may be installed in common areas, it is important to clarify who is responsible for managing the site and each piece of equipment.
Does this mean that environmental due diligence must also verify power and cooling capacities and future expansion possibilities? Not necessarily. Aspects such as power supply capacity, grid connection, cooling system capacity, and the scale of additional capital investment fall under the realm of technical due diligence. Separate assessments are needed to technically verify whether the data center can operate at the planned scale, accommodate future AI workloads, and determine the extent of additional investment required for expansion.
The key is not to confuse environmental due diligence with technical due diligence but to connect the results from both areas from an M&A perspective. For example, if environmental due diligence reveals inadequate management records for the generator fuel tank or past leak incidents, it is necessary to assess potential environmental liabilities and the need for further investigation. Simultaneously, technical due diligence can evaluate the actual capacity and operational status of the power equipment, as well as the costs required for future replacement or maintenance. Even when examining the same equipment, the focus of the due diligence varies based on its purpose.
Ultimately, the critical question in M&A is not simply whether there are issues. It is essential to assess how discovered problems impact the transaction economically. If there is a potential for environmental contamination, the costs of remediation and the scope of liability must be reviewed. If additional capital investment is necessary, the impact on CAPEX and project timelines must be estimated. If there is a risk of delays in expansion due to insufficient power or cooling capacity, the potential effects on expected revenue and profitability should also be considered.
These findings must ultimately translate into transaction terms. It is necessary to determine whether additional due diligence is required, whether price adjustments are needed, whether specific permits or contracts should be prerequisites for closing the deal, and whether contractual protections such as representations, warranties, or indemnities should be established. This is why the results of due diligence must lead to actual deal decisions rather than remaining confined to technical reports.
The value of a data center lies not only in the building and land. It becomes a valuable investment asset only when environmental responsibilities are managed, necessary equipment operates normally, and the planned power and cooling capacities are secured to execute the actual business plan. Therefore, in data center M&A, it is essential to distinguish between environmental due diligence and technical due diligence while connecting their results into a single investment judgment.
Ultimately, the important question in data center M&A is not merely whether there are environmental issues. It is crucial to verify whether environmental responsibilities are manageable and whether the asset can operate as planned and execute future business plans. Environmental due diligence seeks to uncover hidden environmental liabilities, while technical due diligence verifies the operational and expansion potential of the asset. When the results of both due diligence processes are linked to corporate value and transaction terms, data center M&A due diligence can become a practical tool for investor decision-making.
* This article has been translated by AI.
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