The article discusses how adding an electric machine to a turbocharger can improve the efficiency and power delivery of a dual fuel engine used in ships. By using a hybrid electric turbocharger, the engine can respond faster to power demands and operate more efficiently. The researchers studied how this technology can increase the engine's operating range and loading capability, especially during sudden changes in power demand. Their simulations showed that the hybrid electric turbocharger can significantly enhance the engine's performance and reduce fuel consumption, helping to meet stricter emission regulations in the marine industry.