Energy & electricity on board

Onboard energy: batteries, solar, charging and autonomy

Understand and size your boat's electrical system, from the choice of batteries (AGM, lithium LiFePO4) to solar production, through charging, distribution and the real consumption of on-board equipment. We start with a concrete tool: the battery bank calculator.

New · Flagship toolEnergy balance simulatorBuild your complete system (batteries, solar, wind, hydro) against your real consumers, and get your verdict in real time: surplus, balanced or deficit, with autonomy and coverage rate.Open the simulator

Battery bank calculator

Estimate the battery capacity you need from your daily consumption, target autonomy and battery technology. A sizing baseline to confirm with a professional.

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Compare batteries on the market

The energy hub

What this section progressively covers: comparators, calculators and practical guides for on-board energy.

Batteries

Technologies (lead-acid, AGM, gel, LiFePO4, NMC), BMS management, service life and battery bank sizing.

AGMLithium LiFePO4BMSCycles

Power generation

Solar (rigid, flexible, foldable), wind, smart alternators, hydrogenerators.

Solar panelsWindAlternators

Charging

From shore power (230 V), from the engine (DC/DC), from solar (MPPT / PWM).

230 V chargersDC/DCMPPT

Electrical distribution

12 V and 230 V networks, panels, fuses, battery switches, busbars, wiring.

12 V230 VWiring

On-board consumption

Real equipment consumption: fridge, autopilot, fishfinder, VHF, Starlink, LED, pumps…

FridgeStarlinkAutopilot

Monitoring

Battery monitors, shunts, Victron Cerbo GX, NMEA 2000, telemetry and alarms.

ShuntVictronNMEA 2000