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At Robust-MT Marine Technology, you will find a complete range of new electric sloops, constructed from the strongest materials (aluminum and HDPE) and equipped with proven electric propulsion. We build our sloops ourselves, based on years of technical expertise in electric shipping. No compromises on materials, no concessions on technology.
Whether you want to cruise peacefully in a nature reserve, glide through the canals of a city, or have a day on the Haringvliet planned: there is always an electric sloop in our range that perfectly matches your wishes.
Electric boating requires more than just an engine. Our aluminum boats combine robust construction with a sophisticated electric propulsion system, designed for comfortable, quiet, and emission-free boating. No compromises, just boats that are technically sound and built for years of reliable service.
The combination of a light and strong aluminium or HDPE hull with electric propulsion ensures efficiency, stability and minimal maintenance costs.
| Model | Length | Width | Hull weight | Number of people |
| ZWS-420 | 4.20 m | 1.90 m | 350 kilo | 4-6 people |
| ZWS-525 | 5.25 m | 2 m | 415 kilo | 6-8 people |
| ZWS-550 | 5.50 m | 2.10 m | 575 kilo | 6-8 people |
| ZWS-580 | 5.75 m | 2.20 m | 800 kilo | 6-8 people |
| ZWS-600 | 6.00 m | 2.40 m | 600 kilo | 10-12 people |
| ZWS-680 | 6.80 m | 2.40 m | 650 kilo | 12 people |
| ZWS-730 | 7.28 m | 2.30 m | 880 kilo | 12-14 people |
Anyone looking to buy a new electric sloopis looking for more than just silent propulsion. It's about balance, handling, and a system that's suited to its use on the water. That's why we work with durable aluminum or HDPE hulls that are perfectly suited to electric propulsion and offer comfortable handling.
An electric sloop is ideally suited for relaxed cruising, nature reserves, and urban waterways, without noise pollution or emissions, perfect for a day on the water.
Buying an electric sloop is a major decision. We believe that you are best able to make that decision based on honest information, not just the positive aspects. Below, we clearly list the pros and cons and show how Robust-MT has a concrete answer to every disadvantage.
Benefits
An electric sloop sails completely silently. No sound from a combustion engine, no vibration in the hull, and no emissions. This makes boating more pleasant, both for yourself and for the nature around you. Maintenance costs are structurally lower than with a combustion engine: no oil changes, no fuel filters, and no injectors requiring attention. Moreover, electric boating is cheaper per kilometer. And more and more waterways in the Netherlands are being designated as emission-free zones, making electric boating not only attractive but also future-proof.
Disadvantages
The purchase price is higher than that of a comparable petrol boat. That is true. A new electric sloop requires a higher investment than a comparable boat with an internal combustion engine. What many buyers forget, however, is that the total cost of ownership over the years actually turns out to be more favorable. You save on fuel, pay hardly any maintenance, and do not have to reckon with major repairs to a complex engine. Over a period of five to ten years, those savings bring the actual costs close to each other, or even below.
The range depends on the conditions. The range of an electric sloop depends on wind, current, the weight on board, and the speed at which you sail. This makes it more difficult to give an exact figure. In practice, our customers sail for an average of six to ten hours per charge under normal conditions. At Robust-MT, we always tailor the battery pack to your sailing style. Do you use the boat for day trips on the Biesbosch or for longer trips across the Dutch lakes? This question helps determine which battery pack suits you best.
Charging infrastructure on the water is limited. Compared to petrol, the number of charging points on Dutch waterways is still limited. This is changing rapidly, but it is fair to mention. The good news: you can charge most electric sloops at home via a standard 230V socket or a charging station. Are you staying overnight at a marina? Almost all marinas have shore power available. Our advisors are happy to help you consider your boating pattern and how to smartly combine it with charging times.
A completely new way of planning. Electric boating requires a different way of thinking than refueling. At first, this sometimes feels like an adjustment. Our customers tell us almost unanimously that this feeling disappears completely after the first few outings. The boating itself, silent and odorless, then convinces you on its own.
| Aluminum sloop | HDPE sloop |
| Extremely strong and lightweight, optimal efficiency with electric motor | Indestructible plastic – no rust, no osmosis, no wear |
| Resistant to heavy use and salt water | Low maintenance, no annual treatment needed |
| Long service life, hardly any corrosion with proper paint treatment | Resistant to impacts and dry falls |
| Suitable for daily use and commercial deployment | Ideal for intensive use in shallow water |
| Recyclable, circular choice | Stable in temperature fluctuations |
| Ideal for: daily boating, rentals, canals and open water | Ideal for: nature reserves, lakes, family entertainment, recreation |
Are you unsure? During our consultation, we look at your waterways, usage intensity, and budget to make the best choice together.
The range of an electric boat plays an important role in choosing the right drive and battery capacity. How far you can sail depends on factors such as speed, boat type, load, and water conditions. Thanks to the lightweight and efficient aluminum or HDPE hull, our electric boats achieve optimal efficiency, allowing you to sail longer and more efficiently on a single battery charge.
For relaxing trips on inland waters or in nature reserves, an electric sloop often offers more than enough capacity for a full day of boating. The right combination of electric motor, battery pack, and hull construction creates a reliable and comfortable boating experience with a maximum range and minimal energy costs. This way, you choose not only quiet and sustainable boating but also safety and efficiency on the water.
The Netherlands is sailing rapidly towards cleaner water. More and more cities and nature reserves are designating specific water areas as emission-free zones, where boating with an internal combustion engine is no longer permitted. Anyone buying an electric sloop now need not worry about this.
Amsterdam
Amsterdam canals have now been designated as an emission-free zone for pleasure craft. Anyone wishing to navigate the city center with a petrol or diesel boat encounters increasing restrictions. This does not apply to electric sloops: they are welcome on all canals and lakes within the city. As a result, the popularity of electric boating in Amsterdam is increasing rapidly, and the demand for electric sloops in the region is rising accordingly.
Utrecht
Utrecht is also making preparations for emission reductions on the water. The city aims for an emission-free city center, and this also applies to the waterways running through the city center. Electric boating is already the most future-proof choice here.
Other areas and nature reserves
In addition to major cities such as Rotterdam, restrictions have long been in place in a large number of Natura 2000 areas and national parks. In areas like the Weerribben-Wieden, the Biesbosch , and the Nieuwkoopse Plassen, electric boats are the norm, not the exception. That is exactly where many of our customers prefer to boat: quiet, nature-rich areas where silence is part of the experience.
Buying for the future
It is expected that more municipalities and provinces will introduce similar measures in the coming years. Anyone who buys a new electric sloop from Robust-MT now is investing not only in enjoyment on the water today, but also in unlimited access to the water of tomorrow. Our boats comply with the strictest emission regulations and are built to last for years.
Each new electric sloop is meticulously crafted. From the choice of electric motor to battery capacity and charging infrastructure, everything is tailored to your boating needs. This results in a reliable and comfortable sloop with smooth handling and minimal noise pollution.
This approach not only applies to sloops, but also forms the basis for all products in our range.
Are you looking to buy an electric sloop, or are you considering converting an existing boat to electric propulsion? Both options are possible.
For new construction, the entire design can be directly adapted to electric propulsion, ensuring an optimal balance between hull, weight and battery capacity.
During a conversion, the existing engine is replaced with an electric motor with a suitable battery pack and charging system. Whether this option is suitable depends on the type of boat, its weight, and the desired range.
We are happy to advise you on the technical possibilities, so that you can make an informed choice from our range of electric sloops.
An electric sloop is only as good as the components inside it. We deliberately work with a small group of partners who uphold the same standard of quality and reliability as we do. No compromises on parts that form the basis of your daily boating pleasure.
Torqeedo — pioneer in electric marine propulsion.
Torqeedo is one of the most respected names in electric marine engines worldwide. For over twenty years, the German brand has been developing propulsion systems specifically built for use on the water, not adapted from another domain. This makes a noticeable difference in efficiency, wear resistance, and performance on the water.
Torqeedo motors are fully integrated with intelligent software that monitors consumption in real time. You can see on the display how much power you are using, how far you can still sail, and how the motor is performing. That transparency is exactly what we envision: you sail with confidence, not guesswork.
ePropulsion — reliable power, surprising ease of use.
ePropulsion has developed into one of the most sought-after electric outboard motors in the world. The reason is simple: high power, low complexity, and a user experience that works intuitively, even for less technically inclined skippers.
The ePropulsion systems are constructed to be watertight, low-maintenance, and perfectly suited for daily use on Dutch inland waterways. Whether you are cruising peacefully through the canals of Amsterdam or spending a full day on a Frisian inland lake: the propulsion system operates just as reliably on the first use as on the hundredth.
Victron Energy — Dutch quality for energy management.
For battery management and energy storage in our sloops, we choose Victron Energy, a brand you may know from the world of solar energy and off-grid systems. Victron was founded in the Netherlands and is known worldwide for the reliability of its systems, even in demanding conditions.
The heart of the Victron system in our boats is the Battery Management System (BMS). This system continuously monitors the charge status, temperature, and health of every cell in the battery pack. In the event of deviations, the system intervenes automatically, long before you notice anything. This protects not only the battery but also you and your passengers.
Thanks to the Victron app, you always have insight into the status of your battery pack via Bluetooth, even when the boat is moored at the dock. This way, you always know if your boat is ready for the next trip.
WaterWorld — the foundation of our hulls and systems.
WaterWorld supplies the propulsion components that form the basis of part of our product range. The collaboration is based on a shared principle: electric boating should never compromise on space, comfort, or sustainability. Every WaterWorld component we use is tested and approved by us before it ends up in a Robust-MT boat.
Every Robust-MT sloop is built, fitted out, and tested in our own workshop. We install the engine, battery pack, and management system ourselves, fine-tune everything to the hull, and only deliver the unit once it performs to our own standards. You are not dependent on the schedule of an external party, and should you have any questions, we know exactly how your boat is constructed. From the drawing board to the maiden voyage: everything under one roof, by our own people.
The price of an electric sloop depends on length, battery capacity, motor power, and model. A compact model requires a lower initial investment than a larger, luxury electric sloop. Due to lower energy costs and less maintenance, the total operating costs can turn out to be more favorable compared to fuel-powered boats.
The runtime depends on battery capacity, speed, load, and conditions. On average, you can sail for 6 to 10 hours with normal use. Gentler cruising significantly increases the range.
For most electric sloops, a boating license is not required. The obligation only applies at speeds above 20 km/h or lengths exceeding 15 meters. Most models in our range remain well below these limits. We would be happy to inform you about the specific regulations for the model of your choice.
An electric motor has fewer moving parts than a combustion engine. This means less maintenance is required. Regular maintenance of the hull and installation remains essential for long-term reliable use.
The range depends on battery capacity, speed, weather conditions, and load. A well-tuned configuration prevents unnecessary energy consumption and ensures efficient electric boating.
