MiTRE (MicroTurbine Range Extender)

Delta is building a 15-kilowatt microturbine—smaller and cheaper than existing designs—to serve as a range extender for electric vehicles. The problem is straightforward: electric vehicles today face a trade-off between cost and range. Large battery packs are expensive and heavy, while smaller packs limit how far a driver can go. A compact, low-cost generator that kicks in when the battery runs low could break that trade-off. Delta’s microturbine is designed to fit into a vehicle without adding much weight or cost, and its 15-kilowatt output is sized to cover most everyday driving scenarios. If the prototype works, the impact would be felt in the supply chains and manufacturing lines that produce electric vehicles. Automakers could offer cheaper models with smaller batteries, confident that a microturbine extender provides backup range. Drivers would face less “range anxiety” without paying for a full-sized battery pack. The technology itself—a microturbine optimised for automotive use rather than stationary power generation—is a new piece of engineering infrastructure that could quietly reshape how electric vehicles are designed and priced.