Guess some people need primers on the various electrification scenarios.
BEV - Battery Electric Vehicle - Propulsion from electric motor, energy storage through a large capacity batter. Plug in charging only.
FCEV - Fuel Cell Electric Vehicle - Propulsion from electric motor, energy storage in a hydrogen cylinder, fuel cell reacts H2 with O2 to produce electricity. Refuel at a hydrogen station.
HEV - Hybrid Electric Vehicle - Propulsion from both a electric motor and ice either in series or parallel through a transmission or split front and back, energy storage in gasoline/diesel tank and small battery to capture regenerative braking and provide energy to electric motor. ICE charges the battery. Vehicle can operate off either ICE or EM or both at the same time.
PHEV - Plug-in Hybrid Electric Vehicle - Same as HEV, but with a larger battery that can be charged through a plug-in.
EREV - Extended Range Electric Vehicle - A BEV with an onboard generator. All propulsion comes from the EM and battery. ICE generator runs to provided charge to slow depletion of the batter. Can be plugged in to charge and small gasoline / diesel tank filled to operate the generator.
DEL - Diesel Electric Locomotive - Large gas turbines or piston engines (diesels) drive large generators to power electric traction motors. No battery, generators directly provided the power required on demand.
When it comes to super duty pickups, the best technology right now would be (P)HEV or EREV. Medium duty and HD semi's could go the route of DEL (smaller, optimized generator that can generate constant horsepower while the electric motor provides the big torque) or FCEV (need hydrogen depots at freight centers or truck stops). Full BEV is available but the use case is more limited right now.