Pinnacle West Capital (NYSE:PNW) reported quarterly earnings of $3.37 per share which missed the analyst consensus estimate of $3.48 by 3.16 percent. This is a 3.71 percent decrease over earnings of $3.50 per share from the same period last year. The company reported quarterly sales of $1.77 billion which missed the analyst consensus estimate of $1.87 billion by 5.65 percent. This is a 7.94 percent increase over sales of $1.64 billion the same period last year.