Solar stocks haven’t been a significant part of the Cabot Green Investor portfolio in 2009–there have been too many other compelling stocks to buy! Subscribers have enjoyed double-digit gains on many companies ranging from Green Mountain Coffee Roasters to Telvent, a Spanish company that focuses on information technologies with Green applications, like water shed monitoring and power supply regulation. But I am excited about solar returning to its winning ways in 2010. Why? The potential for solar is too huge to ignore for long. All together, solar accounts for just two-tenths of one percent of all the electricity used...