UP

* Mass Megawatts Wind Power (MMGW) up 16.61%

* Sunpower (SPWR) up 14.42% on a big solar plant construction deal

* Green Plains Renewable Energy up 11.24% on news it’s Superior, Iowa plant has begun production of ethanol

* US Geothermal (HTM) up 7.41%

* Capstone Turbine (CPST) up 6.61% on news Wachovia initiated Outperform rating

* Real Goods Solar (RSOL) up 5.87%

* First Solar (FSLR) up 5.50%

* Yingli Green Energy (YGE) up 5.47%

DOWN

* Xethanol (XNL) down 10.00%

* Mass Megawatts Wind Power (OTC:MMGW) down 6.91%

* Altair Technologies (ALTI) down 6.16%

* UQM Technologies (UQM) down 5.73%