The Honorable Katherine Hammack, Assistant Secretary of the Army for Installations, Energy & Environment discussed infrastructure upgrades including aging transformer technology (background) with Deputy Director Lance Hansen, Ph.D., during her visit to the U.S. Army Engineer Research and Development Center's Cold Regions Research and Engineering Laboratory in Hanover, New Hampshire December 12. ASA Hammack’s visit included an overview of current and future projects and a working, R&D lunch with some of CRREL’s newest researchers.