Need to figure out how much power your electric catamaran will need? This tool does the heavy lifting for you. By using established speed calculation formulas from Crouch and Keith, and considering your boat’s weight and waterline length, it estimates the power required to move your catamaran through the water. Plus, since electric motors and controllers aren’t perfectly efficient, you can enter your system’s efficiency. The resulting power curves show you the actual power draw from your battery, accounting for these losses. This helps you plan for a reliable and efficient electric propulsion system.