Liquid Cooling for AI Act of 2025
- Sponsor
- Sen. McCormick, David [R-PA]
- Committees
- Energy and Natural Resources Committee (primary)
- Last action
- Apr 15, 2026
Bottom line
The bill mandates a federal assessment of liquid cooling technologies to address the growing energy demands of AI and HPC, aiming to inform efficient and secure deployment strategies across the U.S. government and industry.
What it actually does
This bill directs the Comptroller General of the United States (GAO) to conduct a comprehensive technology assessment of liquid cooling systems for artificial intelligence (AI) compute clusters and high-performance computing (HPC) facilities. The assessment will cover research and development needs, market trends, technical comparisons of various liquid cooling methods, failure scenarios, and provide recommendations for federal deployment and industry best practices. It also mandates the establishment of an advisory committee with industry and academic experts and a subsequent review by the Secretary of Energy.
Proponents argue
Supporters argue that this bill is crucial for the United States to maintain its global leadership in AI by proactively addressing the rapidly escalating energy consumption and heat generation of advanced computing workloads. They contend that liquid cooling is becoming a necessity for high-density AI servers and that a comprehensive, independent federal assessment will ensure efficient, cost-effective, and secure deployment, thereby reducing energy waste and strengthening national AI capabilities.
Opponents contend
Critics might argue that mandating a GAO study on a specific technology could be seen as an overreach into federal research priorities or that the private sector is already innovating rapidly in this area, potentially making a government assessment redundant or too slow to adapt to market changes. Some may also raise concerns about the administrative burden and cost of such a study, or that it could inadvertently favor certain technologies or companies.
The bill is relatively short and clearly structured, making it accessible for an informed reader to understand its directives and implications within a reasonable timeframe.
Section 2(c)(1) and (2)
Mandate for GAO Technology Assessment on Liquid Cooling
This provision directs the Comptroller General of the United States (GAO) to initiate a review within 30 days of the bill's enactment. The review must cover research and development needs for liquid cooling in data centers, along with market, technological, and regulatory conditions affecting its utilization. It specifies detailed elements for the review, including cost-benefit analysis, compute capacity increases, effects on performance and cybersecurity, market trends, comparisons of different liquid cooling types, evaluation of coolants and materials, development of reference architectures, waste heat reuse, and failure mitigation strategies.
Supporters argue
Supporters argue this comprehensive review is essential to provide an unbiased, expert-driven foundation for federal decision-making regarding critical infrastructure. They believe it will identify gaps in research, clarify best practices, and accelerate the adoption of energy-efficient cooling solutions, thereby strengthening national AI capabilities and reducing energy consumption.
Critics contend
Critics might suggest that the private sector and existing research institutions are already actively addressing these issues, and a government-mandated review could be duplicative, slow, or potentially biased towards certain established technologies, hindering agile innovation.
Tradeoffs
The tension lies between the need for a thorough, independent assessment to guide public investment and the risk of governmental processes lagging behind rapid technological advancements in the private sector.
Section 2(c)(3) and (4)
Establishment of Liquid Cooling Advisory Organization and Stakeholder Input
This provision mandates that the Comptroller General consult with stakeholders from federal, state, and local governments, the private sector, academia, and National Laboratories for developing best practices and industry standards. Furthermore, it directs the Secretary of Energy and the Comptroller General to establish a specific advisory committee, composed of experts from the liquid cooling industry, hardware manufacturers, data center operators, fluid producers, and AI factory development, to consult during the review's preparation. This committee will terminate upon the Secretary of Energy's final report.
Section 2(e)
Department of Energy Assessment and Recommendations
This provision requires the Secretary of Energy, within 180 days of receiving the GAO report, to submit an assessment of that report to the appropriate congressional committees. This assessment must include considerations for Congress regarding the importance of liquid cooling for maintaining U.S. leadership in AI technologies, and specific recommendations for future research and development in liquid cooling and heat-reuse technologies.