Today I want to talk to you about two companies that are benefiting from growing interest in electric vehicles. The first is Walgreen (WAG), which partnered with NRG Energy (NRG) in November to install high-powered rapid charging stations for electric vehicles at 18 Walgreen locations in Houston, Texas. The first station in set to be installed next month. The second is General Motors’ (GM), which announced this week at the Detroit Auto Show that it plans to produce more plug-in hybrid vehicles based on its Chevrolet Volt. Initial estimates show that General Motors could build 25,000 Volts next year,...