发布机构：劳氏船级社（Lloyd's Register）
栏目：研究报告
来源：https://www.lr.org/en/knowledge/research-reports/2025/applying-alternative-fuels-to-existing-ships/
The maritime industry is tackling a pivotal challenge of reducing carbon emissions from the existing shipping fleet, as we strive towards a greener and more sustainable future. One option for this is retrofitting existing ship engines for alternative lower carbon fuels. Our Engine Retrofit Report tracks the state of engine retrofit demand, capacity, and uptake, which is a significant step towards achieving this goal.
The decision to retrofit engines must be weighed against several other options, including drop-in net-zero, near-zero or absolute zero fuels, non-engine power technologies, or building new zero- or near-zero emissions tonnage.
Many elements remain uncertain while net-zero or near-zero carbon fuels are scaled up and as a regulatory framework is established.
Decarbonising the existing fleet is vital in the maritime industry's quest to reduce greenhouse gas emissions. Without substantial progress in this area, as many as 20,000 merchant vessels could still rely on fossil fuels by 2050, jeopardising the industry's path towards achieving net-zero emissions.
This publication and new 2026 update from the Retrofit Research Programme aims to provide a comprehensive overview of the state of technology, compliance frameworks, systems integration capabilities, and the business case for retrofitting vessels. The reports use methanol, ammonia and LNG as examples to analyse the industry's readiness for adopting alternative fuels.
Play video 1:18 Highlights video - Engine Retrofit Report Share this page Engine Retrofit Report - 2026 update Download the report Close Engine Retrofit Report - 2025 update Download the report Close Engine Retrofit Report - full report Download the report Close Engine Retrofit Report - full report (Chinese translation) Download report Close Ship retrofits for more sustainable and compliant voyages The industry faces a complex choice between retrofitting, buying new vessels, and the challenge of securing green fuel supplies. We can help ship owners and managers find retrofits that make environmental and economic sense.
Read the case study on the world’s first methanol-fuelled passenger ship Lloyd’s Register and Stena Line: Pioneering methanol engine retrofits in shipping
Press releases Latest Retrofit news Press release15 Oct 2026