The document discusses a startup company called Inventev that is developing plug-in hybrid electric powertrains for medium-duty commercial trucks. Inventev sees an opportunity to electrify these trucks which have been less prioritized than other vehicle classes. Their system would allow trucks to operate for 30-50 miles on battery power alone or use the engine as a range extender. It would also enable mobile power generation at job sites to reduce idling and provide electricity during outages. Inventev believes their technology can save fleets over $8,000 in fuel costs compared to diesel trucks and provide a payback period of under 4 years.