Total energy given off by the sun?

Experts at the National Aeronautics and Space Administration (NASA) estimate that "the total energy radiated [by the sun] is 383 billion trillion kilowatts, which is equivalent to the energy generated by 100 billion tons of TNT exploding each second" (NASA Office of Space Science, "Solar System Exploration," internet, https://www.lds.org/general-conference/2003/04/the-unspeakable-gift?lang=eng)