Originally Posted By: A_Harman
It looks like they have some form of an electric motor sandwiched between the compressor and turbine of the turbocharger. This would be a way to do energy recovery from the exhaust when the turbine can make more power than is required to drive the compressor. That's pretty neat stuff if they can make it work.
It says in the article that they are expecting a total of 750HP from the combined powerplant, and that the Energy Recovery Systems can account for 160HP. This would mean that the engine output by itself would be 590HP. This doesn't seem like much of a challenge, given that the old F1 turbo's made up to 1000HP out of 1.5 liters at ~13,000rpm. Even when they had them restricted to 2.5 bar manifold pressure, they still made 670HP.
The current engine which has been frozen for 7 years is a 2.4L V8, the old turbos have been gone for a long time and so very different from the current engine of the last 7 years...
The Energy Recovery System’ (ERS): kinetic energy (ERS-K) and exhaust heat energy (ERS-H) is recovered by two electric motor-generator units named MGU-H and MGU-K which is good for about 160HP.