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How to Choose the Right Marine Power Generator

Power generators are essential in the marine environment, providing a reliable source of electrical energy to power air conditioning, navigational equipment, lighting, refrigeration units and much more. With such an important role to fulfill, it’s important that you choose the right marine generator for the job. Here’s some advice from CAT marine equipment specialists.
Marine Generators
Space requirements for marine power generators 

Space is at a premium in this environment and every square foot of space must be allocated to its optimal use. Marine generators are typically situated below deck in an engine room or aft compartment, and it’s important that crew have enough space to install the unit as well as easily access it for refueling, maintenance, and repairs. For boats smaller than 30 feet in length, a portable generator may be the only appropriate unit available.

Choosing a fuel type for your marine generator

Marine generators typically operate on petrol or diesel, and there are pros and cons to each fuel type including running and maintenance costs. Diesel generators are a first-choice option for ships and boats running on diesel engines simply for convenience, and it is important to remember that diesel has specific storage requirements as a result of its explosive capabilities.

Cooling systems for marine power generators

Typically, there are 3 types of cooling systems for these power generators – a heat exchange, keel-cooled system or a direct seawater cooling system. Heat exchange systems have two cooling water circuits that operate to move cool seawater and coolant through the engine block and exhaust manifold. The keel-cooled system only has a coolant circuit. It is usually best to select a cooling system that is the same as the one used by your marine engine.

Types of marine generators available from CAT

CAT has been a leading supplier of high-quality marine generators for over 65 years and has a wide range of equipment to meet the needs of the industry. All marine generators meet the standards set by marine classification societies and are manufactured in ISO 9001 facilitates. These generators can supply between 11ekW and 7,680ekW, meeting the needs of a wide range of marine vessels and equipment specifications, and are designed for easy installation in the engine room. Popular options in our range include:

  • C2.2 CAT marine generator set – Supplying 17.5-24.5ekW, ideal for pleasure craft and commercial applications. It is naturally aspirated and weighs 389-466 kgs. 
  • C18 ACERT marine genset – Supplying 275-450ekW, suited to both pleasure craft and commercial vessels. It comes either with a turbocharged aftercooled or twin turbocharged aftercooled aspiration. 
  • C9 marine genset – Supplying 142-200ekW, suited to pleasurecraft and commercial applications. Aspiration is turbocharged aftercooled and the unit weighs between 391 and 412kgs. 
  • C280-16 marine genset – Supplying between 4700-5200 kW, for both pleasure craft and commercial vessels. It features a turbocharged aftercooled aspiration and weighs 28,500kgs. 

Choosing the right marine power generator is not an easy task, but the experienced team at Energy Power Systems is ready to assist you. As a trusted CAT marine equipment partner, we can supply you with both new and used power generators for rent or purchase anywhere in Australia, Papua New Guinea, and the Solomon Islands. For more information about our CAT marine equipment, please contact us today. 




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