December Energy Express Published Dec. 7, 2015 By Air Force Civil Engineer Center Public Affairs JOINT BASE SAN ANTONIO-LACKLAND, Texas -- In this edition: The Air Force funds a solar array at Joint Base Pearl-Harbor-Hickam, Hawaii, to maximize the use of renewable energy sources; a utility privatization project in California is expected to save 1.1 billion gallons of water; senior Air Force civil engineering leadership to host a webinar Dec. 15; and more. Read it here.