To all Distribution Transformer stakeholders:

The Department of Energy thanks stakeholders for their participation in the distribution transformer energy conservation standards Notice of Proposed Rulemaking (NOPR) September 27, 2006, public meeting and for making it a successful meeting. There were three requests made in the meeting which I am addressing in this message. 1) Stakeholders asked where the Department had published the actual percentage efficiency ratings for each of the kVA ratings at all the trial standard levels (TSLs). These levels were published in the Environment Assessment report posted in early August 2006 as part of the Technical Support Document (TSD): (http://www.eere.energy.gov/buildings/appliance-standards/commercial/p dfs/transformer_tsd/env_assessment.pdf). See Tables EA.3 through EA.10. 2) Stakeholders asked where the Department had published the no-load and load-losses (in watts) for each of the representative units at each of the Candidate Standard Levels. These levels were published in Appendix 8E of the TSD: (http://www.eere.energy.gov/buildings/appliance standards/comimercial/pdfs/transformertsd/appendix_8e.pdf) See Tables 8E.2.1 to 8E2.10 3) Stakeholders asked whether the Department had analyzed the relationship between transformer operating temperature and lifetime. This issue was not raised as an issue in the Advance Notice of Proposed Rulemaking in 2004, and therefore was not analyzed for the NOPR. The Department invites stakeholders to submit comments on this issue. The deadline for submitting written comments on the NOPR is October 18, 2006. You may submit comments, identified by docket number EE-RM/STD-00-550 and/or Regulatory Information Number (RIN) 1904-ABO8, by any of the following methods:

Federal eRulemaking Portal: http://www.regulations.gov. Follow the instructions for submitting comments. E-mail: TransformerNOPRComment@ee.doe.gov. Include docket number EE-RM/STD-00-550 and/or RIN 1904-AB08 in the subject line of the message. Mail: Ms. Brenda Edwards-Jones, U.S. Department of Energy, Building Technologies Program, Mailstop EE-2J, NOPR for Distribution Transformers Energy Conservation Standards, docket number EE-RM/STD-00-550 and/or RIN 1904-ABO8, 1000 Independence Avenue, SW, Washington, DC, 20585-0121. Please submit one signed original paper copy. Hand Delivery/Courier: Ms. Brenda Edwards-Jones, U.S. Department of Energy, Building Technologies Program, Room 1J-018, 1000 Independence Avenue, SW, Washington, DC, 20585. Telephone: (202) 586-2945. Please submit one signed original paper copy. All comments (electronic and paper) should clearly identify the Docket number: EE-RM/STD-00-550 and/or RIN 1904-ABO8. Sincerely, Antonio Bouza Building Technologies Program U.S. Department of Energy 1000 Independence Avenue, SW Washington DC 20585-0121 phone: 202.586.4563 antonio.bouza @ee.doe.gov To all Distribution Transformer stakeholders: The Department of Energy thanks stakeholders for their participation in the distribution transformer energy conservation standards Notice of Proposed Rulemaking (NOPR) September 27,2006, public meeting and for making it a successful meeting
. There were three requests made in the meeting which I am addressing in this message . 1) Stakeholders asked where the Department had published the actual percentage efficiency ratings for each of the kVA ratings at all the trial standard levels (TSLs)
. These levels were published in the Environment Assessment report posted in early August 2006 as part of the Technical Support Document (TSD):
. (http://www .eere .energy. gov/buildings/appliance
_standards/commerciai/pdfs/transformer
_tsd/env_assessment.pdf). See Tables EA
. 3 through EA. 10
. 2) Stakeholders asked where the Department had published the no-load and load-losses (in watts) for each of the representative units at each ofthe Candidate Standard Levels
. These levels were published in Appendix 8E ofthe TSD : (http ://www
.eere. energy .gov /buildings/appliance
_ standards/commercialipdfs/transformer
_tsd/appendix
_ 8e
. pdf) See Tables 8E.2
. 1 to 8E2 .1 0 3) Stakeholders asked whether the Department had analyzed the relationship between transformer operating temperature and lifetime. This issue was not raised as an issue in the Advance Notice ofProposed Rulemaking in 2004 , and therefore was not analyzed for the NOPR. The Department invites stakeholders to submit comments on this issue
. The deadline for submitting written comments on the NOPR is October 18,2006
. You may submit comments, identified by docket number EE-RM/STD-00

-550 and/or Regulatory Information Number (RIN) 1904-AB08, by any ofthe following methods: Federal eRulemaking Portal : http://www
.regulations
.gov . Follow the instructions for submitting comments. E-mail : TransformerNOPRComment@ee.doe
.gov. Include docket number EE-RM/STD-00-550 and/or RIN 1904-AB08 in the subject line ofthe message. Mail: Ms. Brenda Edwards-Jones, U.S. Department ofEnergy, Building Technologies Program, Mailstop EE-2J, NOPR for Distribution Transformers Energy Conservation Standards, docket number EE

-RM/STD

-00-550 and/or RIN 1904-AB08, 1000 Independence Avenue, SW, Washington, DC, 20585-0121. Please submit one signed original paper copy. Hand Delivery/Courier: Ms. Brenda Edwards-Jones, U.S. Department ofEnergy, Building Technologies Program, Room lJ-018, 1000 Independence Avenue, SW, Washington, DC, 20585. Telephone : (202) 586-2945. Please submit one signed original paper copy. All comments (electronic and paper) should clearly identify the Docket number: EE-RM/STD-00-550 and/or RIN 1904-AB08
. Sincerely, Antonio Bouza Building Technologies Program U.S. Department ofEnergy 1000 Independence Avenue, SW Washington DC 20585

-0121 phone: 202.586.4563 antonio.bouza@ee
.doe.gov