Sunpower, Getting Brighter

I like Sunpower, long term because they are primary researchers in this space, and are not simply licensing other technology, Cypress Semiconductor is a large owner of Sunpower and licenses their technology and manufacturing processes to them.  Sunpower is the most efficient solar panel per square foot, installed.  This is meaningful, because as prices for panels fall, installation costs and space available become more important.  The less panels required, the lower the installation cost.