| Conferences | Year(s) Attended | ||
| • | Assembly Technology Expo | 2003 | |
| • | Battery Council International | 2002, 2004 | |
| • | Fuel Cell Seminar | 2002 | |
| • | Fuel Cell Technology Institute | 2002 | |
| • | Green Industry Expo (GIE) | 2004 | |
| • | Merrill Lynch Power Technology Conference | 2002 | |
| • | Midwest Renewable Energy Association - Renewable and Sustainable Living Fair | 2002, 2004 | |
| • | POWER-GEN International | 2002, 2003, 2004 | |
| • | SUPERCOMM | 2002, 2003, 2004 | |
| • | US DoE's Distributed Energy Resources (DER) Road Show | 2003 | |