>Battery storage and conversion losses are far less than the conversion losses from generating electricity from an ICE. No, they are not. Here's some research

>Battery storage and conversion losses are far less than the conversion losses from generating electricity from an ICE. No, they are not. Here's some research for large-scale battery storage systems: https://www.osti.gov/servlets/purl/1409737 https://www.osti.gov/servlets/purl/1409737 Rround-trip energy storage efficiency is reported as 70% - 80%. Any crappy genset will match that. I really don't understand this idea for a "hybrid" ship. What size battery would you need, to power the electricals of a ship for a sea voyage? What is the payback period to the shipping company?