Boat solar calculator

Your consumption, your sailing area: the calculator works out the panels, MPPT controller and batteries you need, and what you gain compared with your current set-up.

Your sailing

Your daily consumption

Tick what is on board, then adjust the power and hours of use.

  • W ×h450 Wh
  • W ×h60 Wh
  • W ×h30 Wh
  • W ×h18 Wh
  • W ×h120 Wh
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678 Wh / day ≈ 57 Ah at 12 V

Your current setup

To compare before and after. Leave at 0 if you are starting from scratch.

Your choices for the project

Your boat already inventoried, the simulation pre-filled

In the Hullteam log, the calculator uses your equipment — fridge, autopilot, panels, controller, batteries — and checks that your panels match your controller. The log is free.

Discover the Hullteam log