| | GSA PASS-THROUGH LEASE FOR JFO | PLUG POWER INC. | $144,865 | FEDERAL EMERGENCY MANAGEMENT AGENCY | FEDERAL EMERGENCY MANAGEMENT AGENCY | — | 522292Real Estate Credit | X111 | Sep 11, 2009 | Sep 4, 2009 | Mar 3, 2010 |
| | U435CFE BAA-DEMO OF FUEL CELLS FOR BACKUP POWER | PLUG POWER INC. | $464,624 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 335999All Other Miscellaneous Electrical Equipment and Component Manufacturing | AG92 | Mar 11, 2009 | Mar 11, 2009 | May 10, 2011 |
| | BACK UP FUEL CELL SYSTEM | PLUG POWER INC. | $434,416 | NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION | NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION | — | 326122Plastics Pipe and Pipe Fitting Manufacturing | 6150MISCELLANEOUS ELECTRIC POWER AND DISTRIBUTION EQUIPMENT | Sep 7, 2007 | Sep 7, 2007 | Dec 31, 2008 |
| | U435CFE FUEL CELL BACKUP POWER & ENERGY SECURITY | PLUG POWER INC. | $3,551,100 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 335999All Other Miscellaneous Electrical Equipment and Component Manufacturing | AG93 | Aug 29, 2007 | Aug 29, 2007 | Aug 28, 2009 |
| | BACKUP POWER SYSTEM | PLUG POWER INC. | $18,211 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | — | 326122Plastics Pipe and Pipe Fitting Manufacturing | 6116FUEL CELL POWER UNITS, COMPONENTS, AND ACCESSORIES | Mar 5, 2007 | Mar 5, 2007 | May 4, 2007 |
| | — | PLUG POWER INC. | $23,536 | US TRAVEL AND TOURISM ADMINISTRATION | — | — | — | — | Sep 22, 2006 | Sep 22, 2006 | Oct 30, 2006 |
| | — | PLUG POWER INC. | $23,536 | US TRAVEL AND TOURISM ADMINISTRATION | — | — | — | — | Aug 5, 2006 | Aug 5, 2006 | Sep 1, 2006 |
| | GEN CORE 5W24 FUEL CELL SYSTEM | PLUG POWER INC. | $26,631 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 335999All Other Miscellaneous Electrical Equipment and Component Manufacturing | 6116FUEL CELL POWER UNITS, COMPONENTS, AND ACCESSORIES | Jul 25, 2006 | Jul 12, 2006 | Jun 29, 2012 |
| | FUEL CELLS | PLUG POWER INC. | $28,926 | US TRAVEL AND TOURISM ADMINISTRATION | — | — | 326122Plastics Pipe and Pipe Fitting Manufacturing | 6116FUEL CELL POWER UNITS, COMPONENTS, AND ACCESSORIES | Sep 22, 2005 | Sep 22, 2005 | Mar 28, 2006 |
| | REPLACEMENT FILTERS FOR PREVIOUSLY PURCHASED RESIDENTIAL PLUG POWER UNIT. | PLUG POWER INC. | $225 | NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | — | — | 334516Analytical Laboratory Instrument Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Aug 23, 2005 | Aug 23, 2005 | Sep 22, 2006 |
| | FUEL CELL TRAINING COURSE | PLUG POWER INC. | $5,000 | DEPT OF THE AIR FORCE | DEPT OF THE AIR FORCE | — | 335999All Other Miscellaneous Electrical Equipment and Component Manufacturing | U002EDUCATION/TRAINING- PERSONNEL TESTING | May 11, 2004 | May 7, 2004 | Jul 11, 2004 |