This is an engine mount system, that turns your boat into a hybrid system. I first used the units on my fuel cell powered sailboat with great success. They are easy to install but are no longer manufactured. They run from a 36 VDC source that I use to charge using a 2 Kw fuel cell, solar array see solar charger from 24 volt 250 watt each solar panel and plugged into shore power as well. I can advise on installation if required. Please see the attached photos for more details.