LOL, that's nothing. Obi Wan is a "vessel of the Force", and that's before he became "more powerful than you could possibly imagine". So, we can reasonably conclude that Obi Wan can output energies beyond the upper limits of the human imagination - presumably, greater than the highest number you could theoretically write on paper with the most rapid large-number-writing methods. So ghost-Kenobi could conceivably vaporize the universe with a quintillion-quintillion^quintillionth percent of his power.