U.S. Department of Energy - Energy Efficiency and Renewable Energy

Building Technologies Program – Appliances and Commercial Equipment Standards

Distribution Transformers Final Rule Technical Support Document

This Technical Support Document (TSD) provides the technical analyses and results in support of the information presented in the Final Rule for distribution transformers.

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Title Page (PDF 45 KB)
Table of Contents (PDF 831 KB)
List of Acronyms and Abbreviations (PDF 92 KB)
Chapters
Chapter 1. Introduction (PDF 140 KB)
Chapter 2. Analytical Framework (PDF 506 KB)
Chapter 3. Market and Technology Assessment (PDF 745 KB)
Chapter 4. Screening Analysis (PDF 133 KB)
Chapter 5. Engineering Analysis (PDF 4.1 MB)
Chapter 6. Energy Use and End-Use Load Characterization (PDF 658 KB)
Chapter 7. Markups for Equipment Price Determination (PDF 122 KB)
Chapter 8. Life-Cycle Cost and Payback Period Analyses (PDF 2.4 MB)
Chapter 9. Shipments Analysis (PDF 610 KB)
Chapter 10. National Impact Analysis (PDF 927 KB)
Chapter 11. Life-Cycle Cost Subgroup Analysis (PDF 282 KB)
Chapter 12. Manufacturer Impact Analysis (PDF 789 KB)
Chapter 13. Utility Impact Analysis (PDF 4.9 MB)
Chapter 14. Employment Impact Analysis (PDF 224 KB)
Reports
Report 1 Environmental Assessment (PDF 1.0 MB)
Report 2 Regulatory Impact Analysis (PDF 558 KB)
Appendices
Appendix 3A Core Steel Market Analysis (PDF 418 KB)
Appendix 5A Supplementary Engineering Analysis Results (PDF 3.6 MB)
Appendix 5B Scaling Relationships in Transformer Manufacturing (PDF 419 MB)
Appendix 5C Q1 2005 Material Pricing Analysis (PDF 3.4 MB)
Appendix 5D Results of the Voltage Sensitivity Analysis (PDF 410 KB)
Appendix 8A Life Cycle Cost and Payback Period Results (PDF 1.7 MB)
Appendix 8B Uncertainty and Variability (PDF 92 KB)
Appendix 8C Utilities Samples (PDF 61 KB)
Appendix 8D Life-Cycle Cost Sensitivity Results (PDF 4.7 MB)
Appendix 8E Average Transformer Design Properties from Life-Cycle Cost Model (PDF 2.9 MB)
Appendix 8F Life-Cycle Costs and Payback Period Results
High Equipment Price Sensitivity		 (PDF 173 KB)
Appendix 8G Average Temperature Rise of LCC Consumer Choice Model Selected Transformers (PDF 108 KB)
Appendix 8H Core Steel Percentages of LCC Consumer Choice Model Selected Transformers (PDF 280 KB)
Appendix 8I Trial Standard Level Consistency of Single-Phase and Three-Phase Transformers (PDF 279 KB)
Appendix 10A User Instructions for Shipments and National Impact Analysis Spreadsheet Model (PDF 76 KB)
Appendix 10B National Energy Savings and Net National Present Value Results (PDF 11 MB)
Appendix 11A Life-Cycle Cost Subgroup Results (PDF 182 KB)
Appendix 12A Manufacturer Impact Analysis Interview Guides: Liquid-Immersed and Medium-Voltage, Dry-Type (PDF 318 KB)
Appendix 12B Manufacturer Impact Analysis Small Business Interview Guide (PDF 48 KB)
Appendix 12C Government Regulatory Impact Model (GRIM) Supporting Documentation (PDF 231 KB)