The Data Center Transparency Act would require two parallel reporting streams. The Environmental Protection Agency (EPA) must produce quarterly reports to Congress and publicly with data on water usage by data centers, how water is reused, effects on local water systems, pollutant discharges, and greenhouse gas emissions.
The Energy Information Administration (EIA) must collect energy-use data from every data center in the United States every six months and publish a public report disaggregated by state, including changes in consumption, new centers, and effects on household energy bills. The act defines a data center for purposes of coverage by reference to the Energy Independence and Security Act of 2007.
This framework aims to increase transparency, inform policy, and help communities and regulators plan around data-center activity.
At a Glance
What It Does
EPA reports (every 3 months, public) on water consumption, reuse, local water-system impacts, pollutant discharges, and greenhouse gas emissions from U.S. data centers. EIA collects data on energy consumption every six months and publishes a state-disaggregated, public report.
Who It Affects
Data centers located in the United States, local water utilities, state regulators, energy policymakers, and households through reported energy cost impacts.
Why It Matters
Public data on data-center water and energy use supports environmental oversight, utility planning, and informed policymaking, especially for communities potentially affected by concentration of data-center activity.
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What This Bill Actually Does
The Data Center Transparency Act requires two streams of information about data centers to be collected and shared with the public and Congress. First, EPA must produce quarterly reports detailing how data centers use water, how they reuse water, the effects on local water systems (including potable water availability and any changes in residential water bills), and the level of pollutant discharges and greenhouse gas emissions.
These reports look back over the prior three months and must identify any cumulative impacts on overburdened communities. Second, the EIA must gather energy-use data for every data center in the United States every six months and publish a public report that breaks down total energy consumption by state, notes changes over the period, counts new data centers, and considers effects on household energy bills and average energy use.
The bill links the data center definition to the framework used in the Energy Independence and Security Act of 2007, ensuring a familiar coverage standard. Together, these provisions create a transparent, data-driven view of data-center environmental and energy footprints to inform policy, regulation, and public accountability.
The Five Things You Need to Know
EPA must publish quarterly reports on water use, reuse, and local water-system impacts at data centers.
EPA reports include pollutants discharged and greenhouse gas emissions.
EIA collects data on data-center energy use every six months.
EIA publishes state-disaggregated energy data and notes changes and new centers.
Public reports must be accessible on a government website.
Section-by-Section Breakdown
Every bill we cover gets an analysis of its key sections.
Short title and purpose
This section designates the act as the Data Center Transparency Act. It sets the stage for the two reporting streams described in Section 2 and links the act to the existing energy efficiency framework by referencing the act’s approach to defining data centers.
Air and water quality reports
Not later than six months after enactment, and at least quarterly thereafter, the EPA must submit to Congress and publicly share a report identifying: (1) total water consumed by data centers nationwide; (2) water reuse practices and quantities; (3) effects on local water systems, including potable-water availability, demand on utilities, service disruptions, and residential rates; (4) pollutant discharges by data centers as defined under the Federal Water Pollution Control Act; and (5) greenhouse gas emissions and their cumulative impact on overburdened communities.
Electricity consumption reporting
The EIA must begin collecting data on total energy use by each data center every six months. Not later than six months after enactment and every six months thereafter, the EIA must publish a public report disaggregated by state showing total energy consumption, changes from the prior period, the number of centers that began operation, potential shifts in household energy bills, and the average household energy use and cost.
Data center definition
The term data center is defined as in Section 453(a) of the Energy Independence and Security Act of 2007 (42 U.S.C. 17112(a)). This ensures consistency with established federal definitions and determines the scope of entities covered by the reporting requirements.
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Explore Environment in Codify Search →Who Benefits and Who Bears the Cost
Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- EPA gains a structured data stream to assess environmental impacts and to inform rulemaking.
- EIA gains a clear mandate and data pipeline for national energy-use statistics.
- State and local water utilities benefit from data on water demand, reuse, and system impacts to plan infrastructure and rates.
- Communities in areas with concentrated data-center activity gain visibility into potential environmental justice issues and cumulative impacts.
- Policy researchers and watchdog groups receive richer datasets for analysis and accountability.
Who Bears the Cost
- Data centers incur ongoing data collection, reporting, and potential auditing costs to ensure accuracy and timeliness.
- EPA and EIA must allocate budget and resources to gather, standardize, and publish the reports and maintain the public website.
- State and local water utilities may need to provide data and participate in reporting processes, adding administrative workload.
- Regulators and policymakers may face higher oversight costs and tighter performance expectations as data-driven analyses expand.
Key Issues
The Core Tension
The central dilemma is balancing timely, transparent data about data-center environmental and energy impacts with the compliance costs for operators and the need to protect commercially sensitive information, all while ensuring the data are sufficiently robust to inform effective policy.
The bill’s serial data requirements create a clear, public dataset that can drive policy, but they also raise practical questions. Data quality and comparability will depend on consistent measurement definitions, data-center counting rules, and the handling of outliers or out-of-state water flows.
The frequency and granularity of reporting could pose a compliance burden for data-center operators, particularly for smaller facilities or those with rapidly changing utilization. There is also a question of how commercially sensitive information will be shielded or treated in public disclosures.
Finally, while the reporting cadence is ambitious, the extent to which the data can be used to influence rate design or permit decisions will depend on the accompanying regulatory framework and statutory standards.
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