A new report from The Pew Charitable Trusts finds that U.S. Department of Defense clean energy investments increased 300 percent between 2006 and 2009, from $400 million to $1.2 billion, and that they are projected to eclipse $10 billion annually by 2030. The military has set an overall target of obtaining 25 percent of its energy from renewable sources by 2025. The Pew report documents how the Defense Department is helping to accelerate the development and deployment of clean energy technologies in three key areas: vehicle efficiency, advanced biofuels, and energy efficiency and renewable energy at bases. The executive summary of the report is available here. The full report is available here.