A new player, flush with cash, is emerging in the clean transportation industry. That firm is Hyliion, a company that up until now has remained outside of the reach of investors in publicly-traded securities. Now, with a merger into shell company Tortoise Acquisition Corp. (SHLL), Hyliion will present investors an interesting growth prospect to consider. If the company's technology and the growth prospects for it are as good as management has indicated, it could offer significant upside potential in the years to come. That said, the price of that growth today is astronomical