Shinyfamily/E+ via Getty Images Investment Thesis Powell Industries (NASDAQ:POWL) prospects have been on a tear of late. However, investors remain skeptical and unwilling to pay a fair premium for this stock. The reason is rather straightforward, investors believe that its strong growth rates are not sustainable. And while that's a very valid concern, I maintain that this consideration has already been amply priced in. In short, I declare that paying 13x forward free cash flow for POWL is an attractive risk ...