Efficiency isn’t just about technology – it’s about how we use it

The same principle applies on the water.

Electric ferry operators have discovered that the way they handle their vessels can have a major impact on energy use and operational range. They’ve learned to optimise acceleration, maintain efficient cruising speeds, and plan approaches to wharves to minimise unnecessary energy consumption.

Route planning is also important. Fuel and energy consumption increase when vessels repeatedly push through wind-driven waves or operate in rough sea conditions. By adjusting their course to approach waves at a more favourable angle, operators can reduce vessel motion, lower the power required to maintain speed, and make the journey more comfortable for passengers.

Sometimes the most efficient route is not the shortest. A slightly longer passage through more sheltered waters can require less propulsion energy than a direct route through steep seas. Similarly, understanding the most efficient speed for different wave conditions can significantly reduce fuel consumption. These are skills that can be learned, measured and refined over time.

For electric ferries, every kilowatt-hour saved extends range and operational flexibility. For diesel ferries, the same practices reduce fuel use, operating costs and greenhouse gas emissions. The underlying principle is the same: use only the energy needed to complete each journey safely and efficiently.

As the maritime sector works towards lower emissions, technology will continue to play a vital role. But the experience of both EV drivers and electric ferry operators shows that behavioural change can deliver substantial benefits too. Investing in crew awareness, fuel-efficient vessel handling and smart route planning can help operators reduce costs, improve passenger comfort, and support a more sustainable maritime transport system.

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