Department of Defense Energy Security Act of 2015

Department of Defense Energy Security Act of 2015 This bill authorizes military departments to carry out pilot programs to enter into energy savings performance contracts through FY2041, for the purpose of achieving direct energy savings and secondary savings in: (1) certain mobile assets of the Armed Forces that consume energy for the purpose of transportation or maintaining a controlled environment within the vehicle, device, or equipment; and (2) any federally owned equipment used to generate electricity or transport water. Under an energy savings performance contract, a private party agrees to fund energy-efficient upgrades in the federal government and the federal agency agrees to pay the private party from reductions in the agency's energy costs. The U.S. Army must report on research since October 1, 2010, on energy efficiency of tactical vehicles. The Department of Defense (DOD) may carry out research to improve military vehicle technology to increase combat vehicle fuel economy or reduce fuel consumption. DOD shall establish an online, centralized repository for all DOD operational energy-related research and development efforts. The bill establishes a Department of Defense Alternative Fuel Vehicle Infrastructure Fund for installing and operating alternative fuel dispensing stations for DOD's alternative fueled vehicles and other related infrastructure. DOD must establish a program to develop and support projects designed to foster secure and reliable sources of energy for military installations, including incorporation of advanced energy metering, resilient energy, energy storage, and redundant power systems. DOD must report on: (1) the costs and benefits associated with requiring 25% of National Guard and Reserve facilities to have at least a 21-day on-site power storage capacity to assist civil authorities in case of man-made or natural disasters; (2) energy efficiency language in the most recent aerial refueling tanker contract and the Logistics Civil Augmentation Program contract; and (3) DOD's strategy and initiatives to mitigate the impact of expected increased water shortages, instances of wildfire, increased drought, flooding due to sea level rise, and coastal erosion from storm surges to ensure optimal military readiness.