NAWIS Marine is a marine technology company that designs and manufactures 100% electric marine motor systems under the NEW STREAM brand. We offer 8, 12, 16, 20 and 25 kW motor options in five installation types: inboard, outboard, pod drive, sail drive and stern drive. We provide an end-to-end system that includes the motor, battery, driver control panel, boat display and accessories; in other words, not just a motor, but a fully integrated electric propulsion solution.

NAWIS Marine is our company name, while NEW STREAM is the brand of our electric marine motor product series. Product names such as NEW STREAM 8 kW Inboard belong to this series.

We are a marine technology company based in Istanbul / Florya. We design NEW STREAM electric propulsion systems with our own engineering team and manage production, integration and commissioning processes. We provide technical support, installation and service through authorized shipyard and service partners.

The NEW STREAM series works across a wide range of vessels, including private boats, motor yachts, gulets, lobster boats, tenders, trawlers, fishing boats, passenger and tour boats, catamarans, houseboats and sailing yachts. It can be engineered for 6-24 meter LOA boats with single or multiple motor configurations. Our systems are designed for displacement and semi-displacement hulls cruising in the 7-10 knot range. Planing hulls and speed boats are currently outside our scope.

Both scenarios are possible. For your existing boat, we design a retrofit conversion and integrate the NEW STREAM electric system in place of a diesel or gasoline engine. For new builds, we offer turnkey solutions in cooperation with shipyards and designers. For the ideal system recommendation, simply send us your boat type, LOA and current motor details through the boat form.

Yes. We provide project-based solutions for boat projects internationally. Share your location and project details, and we will plan logistics, installation and service together.

The fastest way is to fill out the boat form on our website. You can also send an email to info@nawismarine.com with your boat type, length (LOA), current engine power and usage scenario, such as daily cruising time and average speed. Our team will quickly plan the right motor and battery combination for you.

Prices are determined project by project; every boat and use case has different parameters. The main factors are boat specifications, desired cruising time and distance, solar panel area and integration scope, and selected drive type. To prepare a detailed and accurate quote, we need information about your project.

Choosing an electric propulsion system is different from replacing a diesel engine one-to-one; the system is sized according to your boat's real energy demand. The form lets our team calculate the right motor power, battery capacity and installation type from your boat's data rather than by guesswork.

No. The boat form is completely free and includes no purchase commitment. Its only purpose is to provide a realistic preliminary project assessment and price range tailored to you. The information you provide is used only to prepare your quote; the decision is entirely yours.

Yes. Each technical section of the form includes an 'I do not know this information' option. Enter what you know; our team will estimate missing values from your boat type, length and current engine, or complete them by asking you for a few photos or extra details.

The power required for a boat to move through water depends on its weight, underwater hull shape and wetted surface area. Length, beam, weight and draft together determine hydrodynamic resistance and therefore the motor power to select.

The power of your current diesel or gasoline engine is the reference point for your boat's performance so far. Knowing which speed you reach with which HP shows us your boat's real power requirement and helps us choose the correct kW equivalent.

NEW STREAM motors operate as direct drive. The motor shaft turns the propeller shaft directly, with no reduction gearbox in between. We ask for your current gearbox ratio because it shows what propeller RPM your propeller was selected for. Correct propeller matching directly means longer range.

The propeller converts motor power into thrust, and total system efficiency depends heavily on propeller compatibility. Propeller diameter, blade count and shaft size allow us to evaluate whether your current propeller is compatible with the electric motor and whether it can be kept or should be optimized.

These values show your boat's real operating point: which speed in knots you reach at which engine RPM. The RPM and knot data at cruise speed reveals how much power you actually need in daily use and lets us calculate the required motor power and battery capacity.

Yes. The information you submit through the form is used only to provide you with a quote and technical project assessment; it is not shared with third parties for marketing purposes. Your personal data is processed in accordance with applicable KVKK regulations.

Five power levels are available: 8 kW, 12 kW, 16 kW, 20 kW and 25 kW. Five installation types are available: inboard, outboard, pod drive, sail drive and stern drive. A total of 25 different motor configurations are available.

As a single-motor reference: 8 kW corresponds to about 50-70 HP for 6-12 m boats; 12 kW to about 75-100 HP for 6-17 m boats; 16 kW to about 95-120 HP for 6-17 m boats; 20 kW to about 130-170 HP for 6-24 m boats; and 25 kW to about 180-230 HP for 6-24 m boats.

As a general single-motor guide: 6-8 m boats usually use 8 kW; 8-12 m boats use 8 or 12 kW; 12-14 m boats use 12 or 16 kW; 14-15 m boats use 16 or 20 kW; and 15-25 m boats use 20 or 25 kW. Separate tables are available for catamarans, sailing yachts and houseboats.

NEW STREAM is a complete electric propulsion system. It includes the electric motor, LiFePO4 battery packs and BMS, driver / motor control panel, boat control display, electronic throttle, marine chargers, MPPT charge controller and optional solar panel integration.

No. Our standard production line includes only 8, 12, 16, 20 and 25 kW models. If you encounter an image with a different power rating such as 30 kW or 10 kW, it is not a NEW STREAM product. For special projects requiring higher power, we recommend a multi-motor installation.

With 98.2% energy efficiency, NEW STREAM motors are among the most efficient electric marine motors in their class. This enables 1.8-2.8 times longer range than competitors, linear energy consumption without peak current draw, high thrust efficiency, vector control, direct drive propulsion and very low heat generation.

Thanks to 98.2% high efficiency, almost all energy turns into thrust, with very little loss as heat. Both the motor and driver do not heat up significantly, so the system essentially does not need separate cooling. Inboard models include air cooling as extra assurance, while underwater models are naturally cooled by seawater.

The kW value in the model name is continuous power, meaning the power the motor can produce sustainably. In practice, you do not cruise continuously at full throttle on a displacement boat; the most efficient zone is 40-50% throttle. Full power remains in reserve for wind, current or quick maneuvers.

8, 12 and 16 kW models typically cruise at 7-10 knots. 20 and 25 kW models typically cruise at 8-12 knots. Actual speed depends on hull form, weight, propeller selection and weather-sea conditions. Efficient cruising at 6-7 knots is usually achieved at 40-50% throttle.

Range depends on battery capacity, cruising speed and boat efficiency. Thanks to NEW STREAM's 98.2% efficiency, you travel 1.8-2.8 times farther from the same battery compared with competitors. As an example, an 8 kW inboard consumes about 0.7 kWh per nautical mile at 6 knots, giving roughly 28 nautical miles or about 5 hours from approximately 20 kWh usable energy.

Yes. Compared with internal combustion engines, NEW STREAM motors operate almost silently; there is no exhaust noise, heavy vibration or smoke. They provide a comfortable boating experience that does not overpower the sounds of water, sails and birds.

When the boat moves without motor power, such as under sail or freewheeling, the propeller turns with the water flow. NEW STREAM converts this rotation into electrical energy and charges the battery while cruising. This provides significant energy recovery on long routes, especially for sailing yachts.

The color touchscreen displays real-time motor power, RPM, current, voltage, battery state of charge, estimated remaining range, consumption graph, temperature, fault alerts and regenerative charging status. Smart alerts guide you toward optimal operation.

The system is designed to avoid leaving you stranded. The boat display continuously shows estimated remaining range and battery state of charge; below a certain threshold, it warns you and switches to power management. In multi-motor installations, the remaining motor or motors can bring the boat back to port.

NEW STREAM systems are not suitable for speed applications or planing hull types. They are designed for displacement hull boats cruising in the 7-10 knot range. Ideal use cases include gulets, motor yachts, fishing boats, catamarans, houseboats and sailing yachts.

We use LiFePO4 lithium iron phosphate cells, known for high safety and long service life. The cells are monitored in real time by a smart battery management system. Temperature, voltage and charge/discharge cycles are continuously optimized.

The LiFePO4 chemistry we use is much more thermally stable than other lithium-ion types and is considered one of the safest battery technologies for marine use. The risk of thermal runaway is significantly lower. The BMS prevents overcharging, over-discharging and overheating.

LiFePO4 cells can remain safely stored across a wide temperature range. The key point is that lithium batteries must not be charged below freezing point. The BMS manages this by stopping or limiting charging when temperature is too low. For long winter storage, leaving the pack at 50-60% state of charge and turning off the main switch is ideal.

Simple formula at full throttle: kWh = cruising time in hours x motor power in kW x number of motors. In practice, the motor operates efficiently around 50% throttle, so multiply the formula by 0.5. Always include usable capacity and a get-home reserve.

Battery packs are offered in five capacities: 16 kWh, 24 kWh, 48 kWh, 72 kWh and 96 kWh. We recommend choosing the next larger pack closest to your calculated need. For example, if the result is 20 kWh, choose 24 kWh; if it is 60 kWh, 72 kWh is suitable.

Charging time depends on battery capacity, charger power and grid conditions. As a rough estimate: time equals pack kWh divided by charger kW. A 24 kWh pack charges in roughly 8 hours with a 3 kW charger. A more powerful charger or three-phase connection shortens this time.

You charge the system with standard marina or grid electricity; a separate special station is not mandatory. Single phase 220 V is sufficient for small to medium packs, while three phase 380 V significantly speeds up charging for larger packs.

Yes. Marine solar panels and MPPT charge controllers are a standard part of the system. On sunny days, you can cover a significant part of your boat's energy needs from the sun. On most boats, solar extends range and keeps the battery topped up at anchor rather than sustaining full cruising speed alone.

Battery packs are modular and are placed according to your boat's engine room, available volume and trim. Our team plans weight distribution so it does not disturb the boat's trim. In retrofit projects, the space freed by the removed diesel engine and fuel tank is often used for battery placement.

LiFePO4 cells withstand thousands of charge-discharge cycles and can provide 10+ years of service when used correctly. The BMS maximizes life by protecting temperature, current and voltage limits. For project-specific warranty periods, please contact our team.

Yes. If desired, the boat's house loads such as refrigerator, lighting, water pump and even air conditioning can be powered from the same energy system. We include these loads separately during project planning and size battery capacity accordingly.

Inboard motors are installed inside the boat and use a classic shaft-propeller system. Outboards mount on the transom. Pod drives use an underwater pod unit for maneuverability and low vibration. Sail drives are designed for sailing yachts and provide direct propulsion from the bottom. Stern drives extend outward from the stern and are preferred on cruising boats.

Yes, retrofit conversion projects are one of our specialties. We can keep your existing shaft and propeller line or optimize it if suitable. Our team examines the engine room, battery placement and electrical infrastructure to prepare a conversion plan tailored to you.

We do not offer an integrated hybrid drive where diesel and electric power are combined on a single shaft. However, a combustion system can coexist if it operates completely independently. For range assurance, an independent diesel generator can charge the battery when needed and act as a range extender.

In most cases, your existing shaft and propeller line can be preserved. For maximum efficiency, the propeller must suit the RPM-torque characteristics of the electric motor. Our team evaluates suitability and recommends an optimized propeller if needed.

The weight of the electric system mainly comes from battery capacity. Our team positions batteries and components to preserve your boat's center of gravity and trim. In many conversions, removing the diesel engine and full fuel tank offsets a significant part of the battery weight.

For sailing yachts, both Sail Drive and Inboard options are suitable. On new builds or boats with existing sail drive infrastructure, sail drive is the natural choice. For boats with a classic shaft-propeller architecture, inboard is easier to integrate. Both options can support regenerative charging while sailing.

Yes. Twin motor configurations are often preferred for catamarans and houseboats; quad motor configurations are common for large yachts and special projects. Our smart control panel manages all motors in sync.

Installation is carried out by the NAWIS Marine technical team or authorized shipyard partners. Duration depends on boat type, conversion scope and battery capacity. A typical retrofit project is completed at the shipyard within a few weeks.

Total duration consists of system preparation or production and installation on the boat. Standard configurations are faster because many critical components are supplied from stock. Special projects may take longer depending on scope. A typical retrofit installation takes a few weeks at the shipyard.

The system is designed for marine conditions. Operating voltage, batteries and power electronics are housed in water/moisture-resistant IP-rated enclosures. Critical circuits include fuses, main disconnect switches and BMS protection. Layout is planned to keep batteries and connections above bilge water level as much as possible.

When installed correctly, electric propulsion does not add extra galvanic risk compared with a diesel boat. The propulsion battery is designed as an isolated DC circuit independent from the boat's hull/shaft grounding and sacrificial anode system. Grounding, equipotential bonding and galvanic isolation are applied according to marine electrical rules.

During cruising, there are no exhaust gases, particulate matter or liquid waste emissions. When you charge with solar energy or renewable sources, your total lifecycle carbon footprint can approach zero.

Quiet operation significantly reduces underwater noise pollution, creating a calmer marine environment for dolphins, whales and fish populations. Since there is no fuel or oil leak risk, bays, marinas and sensitive ecosystems are protected.

Sustainable tourism brings guest comfort, lower operating costs and brand value. Eliminating fuel expenses, offering tours without engine noise and supporting green tourism certification are strategic gains for tour operators.

Savings come from three main sources: fuel, maintenance and service time. Diesel or gasoline expense is eliminated, electricity cost is much lower, and oil changes, filters, belts and injectors are no longer needed. Payback period depends on annual cruising hours, fuel price and electricity cost.

LiFePO4 batteries are long-lasting and suitable for recycling at end of life. Packs whose capacity has dropped for boat use often remain valuable for second-life applications such as stationary energy storage. Recycling and disposal follow applicable environmental regulations.

NEW STREAM motors do not require oil, filter, belt or injector maintenance and have far fewer moving parts. Standard checks include visual inspection of electrical connections, BMS report review and software updates. The boat's drive line still requires normal marine maintenance such as shaft seal, anodes, propeller cleaning and bilge checks.

Warranty covers motor, battery and power electronics components, with durations clarified according to project scope. Operating data recorded through the BMS and boat display makes warranty processes and diagnostics easier.

Yes. NEW STREAM products are CE certified. The propulsion motor, battery, power electronics and control components are designed and manufactured according to safety and compliance requirements applicable to marine electrical systems. Project-specific technical documentation is provided for commercial and tourism boats when needed.

Yes. From our Istanbul / Florya headquarters, we provide technical support, installation and service through authorized shipyard and service partners. We can perform system software updates largely remotely.

We can update system software largely remotely, which means new features and improvements can be installed while your boat is in port. Standard software updates are included within the support we provide. If any special development falls outside the scope, we inform you in advance.

All critical components are kept in our own stocks. As the manufacturer, we directly provide spare part support for the driver panel, display, throttle, BMS modules and battery cells.

The boat display and BMS show faults with a code and explanation. If you share this with us, we can perform remote diagnostics and dispatch our service team to the field. For emergencies, our +90 212 553 36 22 line and info@nawismarine.com email address are available.

Yes. User manuals, installation diagrams and technical data sheets are available on our technical documents / catalog page. System introduction and operation training for shipyard and captain teams can be arranged on request.