Arc Integrated High Voltage Powertrain
Arc
Arc’s moat is less about putting a battery in a hull, and more about building a marine grade high voltage system that can deliver car like performance under constant load. The hard part is keeping a 500 horsepower drivetrain, pumps, ballast systems, and charging all working together in a wet, vibration heavy environment, while still controlling weight and cost. That is why Arc builds its own packs, uses an 800 volt architecture, and keeps battery assembly, software, and power electronics in house.
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Traditional boat builders can bolt electric propulsion onto existing hulls through suppliers like Mercury Avator, Vision Marine, and Evoy. That is faster to market, but it leaves the motor, battery, controls, and charging stack split across vendors, which makes it harder to match Arc’s tightly integrated performance and accessory power delivery.
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Arc’s wake boat shows why this matters in practice. The Arc Sport uses the same 500 horsepower motor class as its other boats, but a larger 226 kWh pack and 800 volt system so it can run ballast, pumps, docking thrusters, and other accessories continuously without dragging down the core propulsion experience.
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The closest electric boat peers, like X Shore and Candela, also lean on deep technical integration, not simple engine swaps. That puts Arc in competition with a small group of EV native marine companies, while legacy brands mostly compete through dealer reach, service coverage, and customer trust rather than matching the full stack architecture.
The next phase is turning this engineering advantage into manufacturing leverage. As Arc moves from premium recreational boats into tugboats and other commercial vessels, the same power electronics and thermal systems can spread across more products, which should make the stack harder for incumbents to copy and more valuable as electrification reaches mainstream marine categories.