The coolest thing about current F1 engines is that they eliminate a major inefficiency of turbos. In a modern turbocharged, once the turbo hits maximum boost a

The coolest thing about current F1 engines is that they eliminate a major inefficiency of turbos. In a modern turbocharged, once the turbo hits maximum boost an electronically actuated wastegate opens to avoid over boosting the engine which wastes all the energy you worked to create. Coupling the turbine shaft to a generator allows you to recapture that energy normally lost to the wastegate.