The Defense Department is investing $9 billion over the next five fiscal years in initiatives for addressing energy security and diversifying energy supplies, the department announced Wednesday.
For fiscal 2013, the department is setting aside $1.6 billion for the operational energy strategy.
Secretary Leon Panetta said in the announcement that 90 percent of the investments are for energy efficiency or energy performance initiatives.
Sharon Burke, assistant secretary for operational energy plans and programs, said in a report announcing the investments that one focus of the funding effort is acquiring tactical solar energies.
The department also wants to secure fuel in combat for aircraft, ship and other vehicle engines.
In a June 2011 report, the Pentagon outlined its three goals of securing energy including reducing fuel demand, having more diverse sources and incorporating these ideas into building the future force.