Pinnacle West Capital (NYSE:PNW) reported quarterly earnings of $1.43 per share which missed the analyst consensus estimate of $1.47 by 2.72 percent. This is a 9.49 percent decrease over earnings of $1.58 per share from the same period last year. The company reported quarterly sales of $1.455 billion which beat the analyst consensus estimate of $1.390 billion by 4.68 percent. This is a 7.06 percent increase over sales of $1.359 billion the same period last year.