The Defense Department's evaluation of new heat pump technology at a National Guard installation proved the technology viable and meant the department now has another tool to enhance energy security, said the deputy assistant secretary of defense for environment and energy resilience.

"We have a process in place to help commercialize new and emerging technologies and to prove that they are cost-effective and to encourage uptake across the department," Richard Kidd told lawmakers during a hearing before the Senate Appropriations Committee yesterday. "An air source heat pump, developed in the Department of Energy, in concert with the private sector, moved through our ESTCP/SERDP program, was demonstrated at the National Guard Armory in Maine where it worked during the extremes of winter, and was proven to be cost effective."

Read more: Department of Defense