As cruise operators explore pathways to reduce emissions and improve energy efficiency, batteries are emerging as a pragmatic part of the solution.
DNV has shared a fact-based interview featuring Hilde Bølstad, DNV’s Principal Consultant of Alternative Fuels & GHG Compliance on how batteries fit into cruise vessel design and operation.
Hilde Bølstad is an MSc‑ and BSc‑qualified maritime advisor with 23 years’ experience in ship operations, classification, and surveyor work. Since 2020, she has worked in decarbonization at DNV, supporting shipowners on new regulations and reporting of emissions. In DNV’s Maritime Advisory unit, Hilde works on green‑technology projects for shipping, including alternative fuels, batteries, and shore power.
Regarding where battery technology stands for cruise vessels, she said, “Battery technology is well established across shipping, with more than 1,300 vessels in operation worldwide. In the cruise segment, adoption has naturally progressed at a different pace, largely because cruise ships have a significantly higher energy demand than ferries, offshore vessels, or short-sea shipping.
“According to DNV’s Alternative Fuels Insights platform (AFI), 45 cruise vessels are currently in operation and 11 more on order with battery installations. Most of these projects focus on hybrid operation rather than full electric propulsion – a pragmatic approach that reflects how cruise vessels actually operate.”
This interview answers questions on:
- the current application levels of different battery sizes
- the developments to watch
- the considerations that matter when planning larger installations.
Read the full interview: DNV – Cruise ship batteries