| September, 2004 | U.S. DOE, Energy Efficiency and Renewable Energy, Federal Energy Management Program; U.S. EPA Green Power ... |
| October 28, 2004 | Andrew Aulisi, Jennifer Layke, Samantha Putt del Pino |
| November, 2004 | Fred Wellington, Amanda Sauer |
| December, 2004 | John Paul |
| December, 2004 | Fred Wellington, Chris Fox (Ceres)
|
| January, 2005 | Jonathan Lash |
| January, 2005 | Andrew Aulisi, Jonathan Pershing, Alexander E. Farrell (University of California at Berkeley), Stacy VanDeveer ... |
| May, 2005 | Fred Wellington, Amanda Sauer |
| June, 2005 | Merrill Lynch and WRI’s Capital Markets Research Team |
| June, 2005 | Atiyah Curmally, Jon Sohn and Christopher Wright
|