Enterprise Servers Specification Version 2.0

The Version 2.0 ENERGY STAR specification for Computer Servers has been finalized and will take effect on December 16, 2013. Materials related to the revision process are provided below. Partners and other interested parties with questions or concerns regarding these materials or the revision process can contact Steven Hanson, EPA, Hanson.Steven@epa.gov. To be added to the contact list, stakeholders are encouraged to contact servers@energystar.gov with their contact information. Manufacturers may elect to have their certification body (CB) certify their eligible products to the Version 2.0 requirements from now on. The program requirements, including the specification, and additional information are available through the links below. Please aslo view the ENERGY STAR Version 2.1 development page here.

Server Efficiency Rating Tool (SERT) V1.1.1 Update and Proposed Removal of Maximum Power Configuration– February 24, 2016
EPA Cover Memo (PDF, 118 KB)

Server Efficiency Rating Tool (SERT) V1.1.0 Update to ENERGY STAR Version 2.0 Program Requirements – April 8, 2015

EPA has released a memo below clarifying that certifying to the ENERGY STAR Version 2.0 Computer Servers Program shall require using the newly updated SERT Version 1.1.0. from this point forward.


ENERGY STAR Servers Off-Season Meeting Presentations

EPA and the Information Technology Industry Council (ITI) held an off-season, in-person stakeholder meeting on June 24th and 25th to discuss follow-up topics related to the Version 2.0 specification and the development of the upcoming Version 3.0 specification. The presentations from these meetings are below.


Server Efficiency Rating Tool (SERT) V1.0.2 Update to ENERGY STAR Version 2.0 Program Requirements - October 24, 2013

EPA updated the ENERGY STAR Version 2.0 Computer Servers Program Requirements clarifying the use of the newly updated SERT Version 1.0.2. The finalized documents are posted below.


Server Efficiency Rating Tool (SERT) V1.0.1 Update to ENERGY STAR Version 2.0 Program Requirements - September 4, 2013

EPA updated the ENERGY STAR Version 2.0 Computer Servers Program Requirements clarifying the use of the newly updated SERT Version 1.0.1. The finalized documents are posted below.


ENERGY STAR Version 2.0 Computer Server Kick-off Event Presentation - March 4, 2013
Kick-off Webinar (PDF, 678 KB)

ENERGY STAR Version 2.0 Computer Server Final Draft Stakeholder Webinar - January 31, 2013
Final Draft Presentation (PDF, 356 KB)

ENERGY STAR Computer Servers Final Draft Version 2.0 — January 9, 2013
The Final Draft of the ENERGY STAR Version 2.0 Computer Server specification is posted below along with related files. Stakeholders are encouraged to review these documents and provide written feedback via email to servers@energystar.gov by Friday, January 25, 2013.
Servers Test Reporting Template (OFFICEDOCUMENT, 41 KB)

Stakeholder Comments on ENERGY STAR Version 2.0 Draft 3 Computer Servers Specification
ARM Draft 3 Comments (PDF, 182 KB)
IBM Draft 3 Comments (PDF, 165 KB)
SPEC Draft 3 Comments (PDF, 129 KB)

ENERGY STAR Computer Servers Draft 3 Version 2.0 — August 23, 2012

Draft 3 of the ENERGY STAR Version 2.0 Computer Server specification is posted below along with related files. Stakeholders are encouraged to review these documents and provide written feedback via email to servers@energystar.gov by Friday, September 28, 2012.


Stakeholder Comments on ENERGY STAR Version 2.0 Draft 2 Computer Servers Specification
Cisco Draft 2 Comments (PDF, 62 KB)
Dell Draft 2 Comments (PDF, 21 KB)
IBM Draft 2 Comments (PDF, 133 KB)

Draft 2 Version 2.0 ENERGY STAR Computer Server Stakeholder Webinar - May 24, 2012
EPA Presentation (PDF, 1.3 MB)

ENERGY STAR Computer Servers Draft 2 Version 2.0 - May 11, 2012

Draft 2 of the ENERGY STAR Version 2.0 Computer Server specification is posted below along with related files. Stakeholders are encouraged to review these documents and provide written feedback via email to servers@energystar.gov by June 6, 2012.

Cover Memo (PDF, 38 KB)
Draft 2 Dataset (OFFICEDOCUMENT, 446 KB)

Server Dataset Development

On August 19th, EPA launched the dataset assembly effort for Computer Servers. Below are materials distributed at that time: a timeline of milestones and data due dates, a test method for this effort, and a dataset assembly form for all data submissions. All data must be received electronically via email to servers@energystar.gov by the dates specified.

Dataset Assembly Form (EXCEL, 54 KB)

Stakeholder Comments on ENERGY STAR Version 2.0 Computer Servers Dataset Discussion Documents - July 28, 2011

ENERGY STAR Servers Dataset Discussion Document - June 13, 2011

EPA released an updated Dataset Discussion Document that incorporates requested clarifications and suggestions received from stakeholders. It is intended as a resource for further stakeholder feedback and discussion, specifically addressing the following:

  • Remind stakeholders of the dataset effort goals and scope
  • Reflect stakeholder comments received on the five-point family testing proposal
  • Review the configuration permutations that are of interest to EPA
  • Describe EPA's thoughts on the possible role of modeling data in the effort (derived from manufacturer power calculators)
  • Revise the program development timeline 

Minutes from Certification and Verification Discussion - April 21, 2011

EPA held a conference call on April 21, 2011 as an opportunity for stakeholders and Certification Bodies to discuss the certification and verification processes for servers and workstations.


ENERGY STAR Computer Server Stakeholder Meeting - March 11, 2011

EPA hosted a meeting in Washington, DC on March 11, 2011, to discuss topics related to the ENERGY STAR Server Specification Development effort. Below are materials from the meeting.


Conference Call Computer Servers Draft 1 Version 2.0 - June 30, 2010

EPA held a stakeholder conference call on June 30, 2010 as an opportunity for stakeholders to discuss key topics from Draft 1. EPA thanks stakeholders for their participation in this important call. Below is a discussion summary covering topics and points made during the call.


As noted during the call SPEC has released an updated version of their SERT Design Document. This document information on preliminary schedule, workload and worklet descriptions, and other updates. Stakeholders are encouraged to review the document at the link below.

SERT Design Document - 2nd Revision Exit ENERGY STAR


Stakeholder Comments on ENERGY STAR Version 2.0 Draft 1 Computer Servers Specification
CEE Draft 1 Comments (PDF, 202 KB)
Cisco Draft 1 Comments (PDF, 75 KB)
IBM Draft 1 Comments (PDF, 117 KB)
Intel Draft 1 Comments (PDF, 173 KB)
Oracle Draft 1 Comments (PDF, 644 KB)
SGI Draft 1 Comments (PDF, 77 KB)

Online Meeting Materials Computer Servers Draft 1 Version 2.0 - May 27, 2010

Below are meeting materials from EPA's May 27th web meeting to discuss Draft 1 and early feedback received from stakeholders.


ENERGY STAR Computer Servers Draft 1 Version 2.0

Draft 1 of the ENERGY STAR Version 2.0 Computer Server specification is posted below along with related files. The comment period for these documents is now closed.

ENERGY STAR Cover Memo (PDF, 88 KB)

Meeting Materials The Green Grid Technical Forum - February 2, 2010

Servers (10:00 AM to 12:30 PM):


Storage (1:30 PM to 4:00 PM):


Stakeholder Information Session Meeting Announcement

Representatives from the US EPA will be in attendance at The Green Grid Technical Forum in San Jose, CA on February 2, 2010, from 10:00 AM to 4:00 PM PT, at the San Jose Marriott. Please RSVP to storage@energystar.gov or servers@energystar.gov no later than Friday, January 22. Indicate in your response whether you will be participating in person or via Webinar, and which of the two sessions you plan to attend.


Stakeholder Comments on ENERGY STAR Version 2.0 Preliminary Draft Computer Servers Specification
CSCI Comments (PDF, 94 KB)
Dell Comments (PDF, 27 KB)
Deutsche Bank Comments (PDF, 12 KB)
Fujitsu Comments (PDF, 53 KB)
Green Grid Comments (PDF, 146 KB)
HP Comments (PDF, 109 KB)
Huawei Comments (PDF, 40 KB)
IBM Comments (PDF, 69 KB)
Intel Comments (PDF, 18 KB)
ITI Comments (PDF, 37 KB)
METI Comments (PDF, 33 KB)
Samsung Comments (PDF, 336 KB)

ENERGY STAR Computer Server Version 2.0 Preliminary Draft
Cover Memo (PDF, 75 KB)

Computer Servers Version 2.0 Stakeholder Workshop