## Distribution Transformers The U.S. Department of Energy (DOE) is required by the Energy Policy Act of 1992 to consider standards for distribution transformers. On October 22, 1997, the Secretary determined, based on the best information currently available, that it appears energy conservation standards for electric distribution transformers would be technologically feasible and economically justified, and would result in a significant energy savings. This site provides information on the test procedure and energy conservation standards rulemakingsfor distribution transformers. Some of the following documents are available as Adobe Acrobat PDFs. Download Acrobat Reader. 

### tef sal ® Life Cycle Cost (LCC) Analysis, Design Line 9 Draft Report (PDF 247 KB) ® Life Cycle Cost (LCC) Analysis, Design Line 9 Draft Spreadsheet Model (Excel 4.5 MB) ® Engineering Analysis, Design Line 9 Draft Report ( PDF 1.0 MB) 

### . Material ® Life Cycle Cost (LCC) Analysis, Design Line 1 Draft Report ( PDF 464 KB) ® Life Cycle Cost (LCC) Analysis , Design Line 1 Draft Spreadsheet Model , updated 8/23/2002 ( Excel 5.2 MB) ® Engineering Analysis Update ( PDF 1.2 MB) • Screening Analysis ( PDF 44 KB) Material related to the --- - r ., 2- _ _ --->c lic workshop. ® Notice of Extension of Comment Period (PDF 6 KB) Presentations (in '.pdf' format) from the Public Workshop on Standards for Distribution Transformers that was held on November 1, 2000. ® Agenda (PDF 5 KB) ® Introduction (PDF 891 KB) ® Market and Technology Assessment (PDF 2.4 MB) ® Screening Analysis (PDF 2.3 MB) ® Engineering Analysis (PDF 2.6 MB) ® Life-Cycle Cost Analysis (PDF 2.4 MB) ® Consumer Sub-group Analysis (PDF 219 KB) ® National Energy Saving and Net Present Value Analysis (PDF 241 KB) ® Manufacturer Impact Analysis (PDF 64 KB) ® Utility Impact Analysis and Environmental Analysis (PDF 15 KB)® Net National Employment Impact (PDF 2.4 MB) 

### Bair - ®an infor ation ® Notice of Determination

- This determination initiates the process of establishing, by notice and comment rulemaking , test procedures and energy conservation standards for distribution transformers

. Federal Register , 22, 1997 ( PDF 54 KB) ® Determination Analysis of Energy Conservation Standards for Distribution Transformers, ORNL-6847 - The Oak Ridge National Laboratory (ORNL) report dated July 1996, which supported the Determination (PDF 9.1 KB) ® Supplement to the 'Determination Analysis' (ORNL-6847) and Analysis of the NEMA Efficiency Standard for Distribution Transformers, ORNL-6925 - A revised ORNL report dated September 1997, which assessed the suggested efficiency levels contained in the then newly published NEMA Standards Publication No. TP1-1996, "Guide for Determining Energy Efficiency for Distribution Transformers." (PDF 1.1 MB) Marginal Energy Prices Report (PDF 378 KB) 

### ® Marginal Energy Prices - RECS 97 Update (PDF 17 KB) Energy Conservation ,_ ---- _--- -L ul ire Notice of public workshop and availability of the Framework Document for Distribution Transformer Efficiency Standards (PDF 16 KB) ® Framework Document for Distribution Transformers Efficiency Standards (PDF 108 KB) 

### Test r_ . ,a Rule m a kin g ® Proposed Rule for Test Procedures for Distribution Transformers, Federal Register, November 12, 1998 (PDF 192 KB) ® Notice of limited reopening of the record for test procedures for distribution transformers , June 23, 1999 

### C ontact I nfor m ation Antonio Bouza Project Manager (202)586-4563 

### Pr(a, - lei . _ _)u ents Proposed Rule - Energy Conservation Program: Test Procedures for Distribution Transformers; November 12, 1998 Notice of Determination - Energy Conservation Program for Consumer Products: Determination Concerning the Potential for Energy Conservation Standards for Electric Distribution Transformers; October 22, 1997



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