Senators Urge DOE Secretary to allow working families the freedom to purchase energy appliances that lower their utility bills  WASHINGTON, D.C. — This week, U.S. Senator Peter Welch (D-Vt.), Ranking Member of the Agriculture Subcommittee on Rural Development, Energy, and Credit, joined U.S. Senator Martin Heinrich (D-N.M.), Ranking Member of the U.S. Senate Energy and Natural Resources Committee, and…