The FuelEU Maritime Regulation aims to “increase the use of sustainable alternative fuels in European shipping and ports by addressing market barriers that hamper their use, and the uncertainty about which technical options are market-ready“.
According to the CAT: "for maritime transport, the proposal of the FuelEUMaritime Regulation does not propose any specific share of renewables. However, their uptake is promoted by a requirement to decrease emissions intensity by 2% in 2025, 6% in 2030, 26% in 2040, and 75% by 2050. In addition, when at berth, ships will be required to connect to onshore power supply, if such is available. To reduce emissions-intensity, ships may also use onboard solar for electricity generation or wind for assisted propulsion"