Altair Nanotech (ALTI)
http://www.altairnano.com/

Akeena Solar (AKNS)
http://www.akeena.net/

Ascent Solar (ASTI)
http://www.ascentsolar.com/

Clean Air Power (CAP.L)
http://www.cleanairpower.com/index.php

Environmental Power Corporation (EPG)
http://www.environmentalpower.com/

First Solar (FSLR)
http://www.firstsolar.com/

Gamesa Corporation (GAM.MC)
http://www.gamesa.es/en

Ocean Power Technologies (OPTT)
http://www.oceanpowertechnologies.com

Orion Energy Systems (OESX)Sunpower Corporation
http://www.oriones.com/home.html

Pacific Fuel Cell (PFCE.OB)
http://www.pfce.net

Satcon Technology (SATC)
http://www.satcon.com/

Solar Millenium (S2M.MU)
http://www.solarmillennium.de/

Sunpower Corporation (SPWR)
http://www.sunpowercorp.com

Marianne Wu, Partner of Mohr, Davidow Ventures, explains the significance of Clean Technology and the wide array of applications. Watch video above.