According to StreetInsider.com UBS is downgrading the following:

– Sunpower (SPWRA) downgraded from Neutral to Sell (down
– Evergreen Solar (ESLR) downgraded from Buy to Neutral and $2.60 price target
– GT Solar (SOLR) downgraded from Buy to Neutral and $4.25 price target
– Energy Conversion Devices (ENER) from Buy to Neutral and $31 price target

Despite the downgrades, all solar names are up premarket with the overall market.