Well, somewhat, if you mean an electric only compressor. Turbos actually increase efficiency because besides intake compression, they extract energy from the ex

Well, somewhat, if you mean an electric only compressor. Turbos actually increase efficiency because besides intake compression, they extract energy from the exhaust with the turbine. Formula 1 cars have a mixture: there's an electric motor / generator in the turbo, so that the turbo can be spun up when there's not enough exhaust yet, but the engine needs a lot of air (when you start accelerating). Or the opposite: when there's excess exhaust energy that you don't need for intake charge anymore (when you've stopped accelerating), you can run the motor as generator providing electricity for batteries. Since the turbo rotation speed is so high and torque small, a relatively small motor-generator will suffice.