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Tag Archives: power supply

U.S. DoE Proposes Tightened External Power Supply Efficiency Requirements

On March 7th, the U.S. Department of Energy issued what may be this year’s most important and far-reaching Notice of Proposed Rulemaking (NOPR). The NOPR, Energy Conservation Standards for Battery Chargers and External Power Supplies, not only presents the first mandatory federal efficiency standards for battery charger systems (BCSs), it also significantly tightens and expands [...]

New Developments for External Power Supply Specs

Here’s an update on some recent activity in energy efficiency programs for external power supplies (EPSs) and a chart summarizing the specs. Last month, the European Commission’s Ecodesign Directive tightened its Lot 7 EPS standard from the initial Tier 1 efficiency levels to Tier 2. Notable changes include the reduction of no-load power consumption for [...]

2011 PSMA Power Technology Roadmap is available

The 2011 PSMA Power Technology Roadmap report from the Power Sources Manufacturers Association (PSMA) is available for PSMA members and the industry. It is the seventh roadmap in a series, previously completed every three years to look at the power technology and power delivery trends over the next four to five years. In response to [...]

New EISA 2007 Test Procedures for Battery Chargers and External Power Supplies

The U.S. Department of Energy is planning to amend its EISA 2007 test procedures for battery charging systems and external power supplies. Learn more about the details and how to submit stakeholder feedback.

U.S. Department of Energy Clarifies EPS Testing Requirements

The DoE Clarifies EPS Testing Requirements: The U.S. Department of Energy (DoE) recently published a document further clarifying testing requirements for external power supplies. These specs are required for compliance with EISA 2007 standards.

ENERGY STAR Adds Uninterruptible Power Supplies to Its List of Programs

A framework for the new uninterruptible power supplies specification has been published and the deadline for comments is set for April 2. To learn more about the proposed spec, what types of products may be impacted, and how you might participate in the process, read on…

New ENERGY STAR Computer Server Spec Revision Activity Started

ENERGY STAR Begins Revising Its Server Spec — In his latest blog, Mr. Green discusses the revisions being made to the ENERGY STAR computer server spec. The revised spec is slated to go into effect in October 2010.