Some of the factors that you should take into account to know more about electric inboard boat motors are as follows: Rated Powerĭepending on the brand and model, electric inboard boat motors have a rated peak power that ranges from 75 kW to 330 kW. Since these newer, eco-friendly models are different from the combustion engine, performance-wise, it will be wise to consider some of the significant features of an electric inboard motor. Features of an Electric Inboard Boat Motor Make sure that your electric inboard motor does not exceed the amount provided in the capacity plate to avoid getting into trouble with law enforcement personnel. Mounting a high-powered electric inboard motor in your boat is illegal because you could also endanger your life and others within the area. This type of electric inboard motor will be ideal for a large sailboat or sailing yacht that has a hull weight of, say, 30,000 lbs or thereabouts.
Purpose and Usageįor obvious reasons, you would not get a 100 kW electric inboard boat motor if you plan on using your boat for cruising along the shore with family or friends. You can find the plate near the transom or steering area of the boat.
For safety reasons, boat manufacturers indicate the amount of maximum HP required for your boat in the user manual.Ĭheck your capacity plate, which indicates its max gross load, number of passengers aboard, etc. Knowing the vessel's speed and power limit is crucial, whether you own a bluewater cruiser or a powerboat. If you plan on doing the same, you should consider certain factors, especially if you fancy a high-powered engine, such as a 100 kW electric inboard motor. Some boat owners do this using DIY conversion kits.
Source: Things to Consider Before Getting an Electric Inboard MotorĬhanging your combustion engine to an electric motor is relatively safe. Apart from that, the weight and length of one boat vary significantly compared to another. You may use the list as a guide but be reminded that this is only a close approximation since the figures for the HP are rounded off. Since we are dealing with a large sailboat, which averages around 8800 lbs, your electric inboard boat motor should produce around 16 HP.īelow is a table of different sailboat weights and lengths and their corresponding HP requirement. Therefore, if you have 2200 lbs, you need 4 HP. With this formula, you need 1 HP per 550 displacement lb. No matter what type of boat you own, calculating how much power is required to propel your boat forward is based on this formula: HP ( Horsepower) = displacement lbs / 550. On the same note, if you calculate the boat's overall weight when loaded, you are determining its maximum hull displacement. Simply put, hull displacement refers to the amount of water the boat displaces or the weight of the boat itself. Technically, the boat's weight is the same as the amount of water it displaces when afloat. When determining the power needed for your boat, you will need to find out its hull displacement in displacement lbs (displacement per pound). Calculating the Required HP for your Boat Having said that, some boaters wonder if a 100 kW electric inboard motor would suffice or if it is too much.īut before boaters even start replacing their engines, are there factors that they should be aware of or concerned about before getting an electric inboard motor? This article will clarify some concerns you might encounter or ponder if you are planning on switching from a combustion engine to an electric inboard boat motor. This steady rise of electric boats is mainly due to necessity and practicality, among other things.įor this reason, some boat owners, especially those who own large sailboats, are planning on replacing their fossil fuel-guzzling engines with electric inboard motors. As governments plan to incentivise electric boats, the need for electric motor boats will soon become as popular as their diesel- or gas-powered counterparts. Whether you like it or not, electric boats are gradually becoming a thing.
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