NRG Energy (NYSE:NRG) reported quarterly earnings of $1.73 per share which beat the analyst consensus estimate of $1.23 by 40.65 percent. This is a 1.76 percent increase over earnings of $1.70 per share from the same period last year. The company reported quarterly sales of $6.740 billion which beat the analyst consensus estimate of $6.509 billion by 3.55 percent. This is a 1.22 percent increase over sales of $6.659 billion the same period last year.