Depends what you mean by ebike Something the same weight as a regular bike with a 250W motor doing the same speed is vastly more efficient. A LEV with accesso

Depends what you mean by ebike Something the same weight as a regular bike with a 250W motor doing the same speed is vastly more efficient. A LEV with accessory pedals doing double the speed with 2kWh of battery is at best a wash and likely requires 1000s of trips to break even on the embodied energy.