blackestockphoto/E+ via Getty Images Portland General Electric (NYSE:POR) offers an attractive 4.2% dividend alongside an earnings yield of about 6.5%, the latter referencing Warren Buffet's "Equity Bond" method. Both rates easily top the 10-year Treasury bond. With a P/E ratio of 15.6, the stock is trading below its historical average, and other metrics discussed below point to potential undervaluation. After comparing the company with peers that met stringent screen criteria, I argue that POR deserves ...