I doubt he is the fool. He has us writing about him, not the other way around.
Writing about the nameless guy is one thing....investing in a scheme which is either intentionally deceptive or, at best, hopelessly misguided is another thing altogether.
Regardless, the 4.5kW statement is an eye-catcher. It's an easy tip-off that there's an an energy-storing device in the washing machine, rather than some more ingenious scheme. In other words, he lets on that he's intentionally deceptive.