A marine generator must match the boat’s electrical demand and the conditions in which it will operate. Start with the boat, connected loads and installation space, then compare the marine generator category and individual product specifications.
Determine the boat’s electrical load
List air conditioning, refrigeration, battery chargers, pumps, navigation equipment, cooking appliances, entertainment and tools. Separate continuous loads from motor-starting loads and identify what may operate simultaneously.
Check output, voltage and phase
Match rated output to the calculated demand with appropriate reserve. Confirm AC voltage, frequency, phase, connection type and compatibility with the boat’s distribution panel and transfer equipment.
Review fuel, cooling and exhaust
Check whether the unit uses diesel, gasoline or another fuel, and verify tank, ventilation and fuel-system requirements. Marine generators also require appropriate cooling-water intake, exhaust routing, muffling, ventilation and protection from corrosion.
Consider installation and service access
Measure the compartment, mounting points, service clearances, weight and access path. Plan for oil changes, filters, belts, impellers, batteries and winterization. A technically suitable generator can still be a poor choice if routine service cannot be performed safely.
Before buying
- Boat loads and starting demands are calculated.
- Voltage, phase and frequency match the vessel.
- Fuel, cooling, exhaust and ventilation requirements are understood.
- Mounting, dimensions, weight and service access are confirmed.
- Installation will be reviewed by a qualified marine technician.
Browse marine generators, marine gearboxes and boats and outboards services, then contact X Factor Motor Sport for product-specific questions.