Electric Ferries Can Cut Lifetime Costs by 8-15% on Short Sea Routes, Kongsberg Says

Kongsberg Maritime says shipowners should design vessels for regulatory uncertainty instead of waiting for one global carbon standard. Its modeling finds fully electric RoPax ferries can have 8-15% lower lifetime costs than diesel equivalents on European short-sea routes through 2040, despite higher upfront costs. The advantage shows up on busy corridors like Tallinn-Helsinki and Dover-Calais. The analysis covers cargo and passenger focused concepts, with battery capacity up to around 100 MWh and modular options. The harder part is shore-side charging. Ports, grid operators, and owners need to coordinate on high-power connections. For ships without a clean electrification path, the advice is to cut energy demand, leave room for alternative fuels, and avoid locking into one reading of a rulebook still in draft.