Uninterruptible Power Supplies
The U.S. Department of Energy (DOE) has published (link is external) a Federal Register Final Rule (FR) amending its test procedure pertaining to Uninterruptible Power Supplies (“UPSs).
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 conclusion is subject to some uncertainty, however, in part because manufacturers of uninterruptible power supplies have indicated that a large number of current products will not be able to immediately comply with the new standards and thus will likely be removed from the market.
The effective date of this rule is March 10, 2020. Compliance with the new standards established for uninterruptible power supplies in this final rule is required on and after January 10, 2022.
Modern uninterruptible power supply standards now place a heavy emphasis on energy efficiency, not just safety and reliability. This aligns with global sustainability goals and can lead to substantial cost savings over time.
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