Uninterruptible power supplies or UPSs are battery chargers consisting of a combination of convertors, switches and energy storage devices (such as batteries), constituting a power system for maintaining continuity of load power in case of input power failure. 10 CFR 430 Appendix Y 2.27. This webpage only includes information and rulemaking activity about the subset of battery chargers which are UPSs. Please see the battery charger website for information regarding other battery chargers.
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The U.S. Department of Energy (DOE) has published a Federal Register Final Rule (FR) amending its test procedure pertaining to Uninterruptible Power Supplies (“UPSs). In the rule, DOE is amending the test procedure for UPSs to incorporate by reference relevant portions of the latest version of the industry testing standard, harmonize the current DOE definitions for UPSs, total harmonic distortion, and certain types of UPSs with the definitions in the latest version of the industry standard, and add a no-load testing condition, as an optional test.
- The effective date of this rule is July 3, 2024.
- The amendments will be mandatory for product testing starting October 16, 2024.
- The incorporation by reference of certain material listed in the rule is approved by the Director of the Federal Register on July 3, 2024.
For the latest information on the planned timing of future DOE regulatory milestones, see the current Office of Management and Budget Unified Agenda of Regulatory and Deregulatory Actions. All planned dates are preliminary and subject to change.
Standards
Final Rule - Federal Register, 85FR1447 (January 10, 2020)
Notice of Proposed Rulemaking - Federal Register, 81FR52196 (August 5, 2016)
- Technical Support Document
The uninterruptible power supply conservation standard rulemaking docket EERE-2016-BT-STD-0022 contains all notices, public comments, public meeting transcripts, and supporting documents pertaining to this rulemaking.
Public Meeting Information
There is no public meeting scheduled at this time.
Submitting Public Comments
The comment period is closed.
Test Procedure
Final Rule - Federal Register, 89FR28581 (April 19,2024)
Notice of Proposed Rulemaking - Federal Register, 88FR790 (January 5, 2023)
Request for Information - Federal Register, 87FR5742 (February 2, 2022)
The rulemaking docket EERE-2022-BT-TP-0005 contains all notices, public comments, public meeting transcripts, and supporting documents pertaining to this rulemaking.
Public Meeting Information
There is no public meeting scheduled at this time.
Submitting Public Comments
The comment period is closed.
UPSs manufactured and distributed in commerce, as defined by 10 CFR 430 Appendix Y Section 2.27, must meet the energy conservation standards specified in the Code of Federal Regulations at 10 CFR 430.32(z)(3).
Any representation regarding the energy consumption of UPSs must be based on the test procedure methods specified at 10 CFR 430, Subpart B, Appendix Y.
Waivers
For information on current test procedure waivers, see DOE’s Waivers webpage.
For information about obtaining test procedure waivers, see 10 CFR 431.401.
Guidance and Frequently Asked Questions
For information on further guidance and answers to frequently asked questions on all covered products, see DOE’s Further Guidance database.
For more information related to this product, please email:
ApplianceStandardsQuestions@ee.doe.gov