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

Building Technologies Program – Appliances and Commercial Equipment Standards

Distribution Transformers Energy Conservation Standard

The U.S. Department of Energy has published the final rule for the Distribution Transformers Energy Conservation Standard Rulemaking. The Department has determined that energy conservation standards for liquid-immersed and medium-voltage, dry-type distribution transformers will result in significant conservation of energy, are technologically feasible, and are economically justified. On this basis, the Department is adopting energy conservation standards for liquid-immersed and medium-voltage, dry-type distribution transformers.

Some of the following documents are available as Adobe Acrobat PDFs. Download Adobe Reader.

• Final Rule Federal Register Notice, Federal Register, October 12, 2007 (PDF 1.6 MB)
• Finding of No Significant Impact, Federal Register, November 9, 2007 (PDF 82 KB)
• Final Rule Technical Support Document
• Final Rule Analytical Spreadsheets