Finding the top marine generators for sale can be a difficult endeavour by their very design and purpose a marine generator is a more unique and specially designed machine. It does the same job as a regular generator but they have to survive tougher more hardy environments.

One thing you are always recommended to do with a regular generator is to keep it protected from water but with a marine generator, this is going to be much more difficult. Because they are designed for boats and yachts however they are built to be more moisture resistant. 

Marine generators will be somewhat familiar to anyone who has their own home generator whether it’s portable or a home backup model but it’s important to remember they can’t be approached in the same way. They have their own unique characteristics and features which make them one of the more complex types of generators currently available. 

So, what do you need to think about before going to buy a marine generator then? Well, there is quite a list of things but thankfully I can help. Below, I’ve outlined all the main features you need to consider before making a purchase. 

The Size

One of the most important things to consider when it comes to buying a marine generator is the size of it. Marine generators come in a wide variety of different size but make sure you get one that is the right size for your boat. It shouldn’t be too big or to small thankfully examining the wattage can help you work out how big or a generator you’ll need. 

AC or DC Current

Generators are available in both active and direct current forms. Most modern vessels will need an active current machine to safely power them however if your vessel is quite old then it might only be compatible with a direct current machine. DC marine generators are harder to find though nowadays and typically more expensive. 

Fuel Type

Just like buying a generator for your home/ travels the fuel is very important and marine generators can take both gas and diesel. The best way to choose a fuel for most people is to opt for the same fuel your boat’s engine uses so you are already at least partially familiar with it. 

Power Level

I previously touched upon this but it is worth going a bit more in-depth about. The total wattage your marine generator will need to be able to power everything you need it may require some complex calculations to work out. And remember to take the size of your boat into consideration as well.  


Marine generators are more luxury appliances in most forms which means they can come with a hefty price tag. There are more affordable models available though especially if you only need a smaller generator.

So, that is the low-down on marine generators they aren’t quite as common but there are a number of big-name manufacturers making them. So, do your research and use this guide to help you buy the best model for your boat.