Here is some information that may be useful. We just did a post at our firm, InsideMBAAdmissions, with the details. Listed is the WSJ poll of recruiters (albeit dated a little), as well as last year's % hired by Industry. Keep in mind that schools usually track "Energy" as a group: few designate "Cleantech" from "Oil/Gas".
WSJ 2006 Harris Poll1. Carnegie Mellon (Tepper)
2. Northwestern (Kellogg)
3. Purdue (Krannert)
4. Michigan (Ross)
5. Michigan State (Broad)
6. Indiana (Kelly)
7. Texas (McCombs)
8. IMD
9. Rice (Jones)
10. MIT (Sloan)
2010 MBA School Hiring Summary – Energy Industry (% = of students accepting offers)1. Rice (Jones) – 18%
2. Carnegie Mellon (Tepper) – 10.3%
3. Texas (McCombs) - 8.0%
4. Dartmouth (Tuck) – 6.0%
5. Michigan (Ross) – 5.9%
5. Michigan State (Broad) – 5.9%
7. Stanford - 5.0%
8. Purdue (Krannart) – 4.9%
9. UCLA (Anderson) – 4.3%
10. Chicago (Booth) - 3.5%
MIT/Sloan has a "Sustainability" initiative which is unique. I would also encourage looking at Stanford which has an Energy club and strong ties to Energy in general. Obviously the Texas schools will be more focused to Oil and Gas; however many of the Oil and Gas firms are spending a great deal of resources now on "Cleantech"