Wasaline Sets a New Benchmark in Battery-Powered Shipping

May 3, 2025

With a planned retrofit of 10.4 MWh of additional battery capacity aboard the hybrid RoPax AURORA BOTNIA, Wasaline takes the global lead in onboard energy storage for passenger ships. By early 2026, the vessel will boast a total of 12.6 MWh – making it the largest battery installation on a passenger ship to date.

Here’s how the Top 5 now stands:

  1. AURORA BOTNIA – 12.6 MWh (Wasaline)
  2. GUILLAUME DE NORMANDIE – Stena E-Flexer – 12.0 MWh (Brittany Ferries)
  3. HAVILA CAPELLA / CASTOR – 6.1 MWh (Havila Voyages)
  4. COLOR HYBRID – 4.7 MWh (Color Line)
  5. LE COMMANDANT CHARCOT – 4.5 MWh (PONANT)

This retrofit – a collaboration with AYK Energy – is not just about size. It’s a bold step toward Wasaline’s vision of carbon-neutral operations by 2030. As demand for greener maritime transport grows, these milestones are paving the way for more sustainable sea routes across Europe and beyond.