Decarbonization solutions in the maritime industry are at the center of debates, with a focus on the hybrid use of batteries and biodiesel. However, there are challenges and uncertainties regarding their implementation. For instance, ammonia, considered a potential fuel for the shipping industry, has unfavorable characteristics and potential environmental and human health risks. As for methanol, there are different production pathways, but the high costs and the need for widespread hydrogen use raise questions about its long-term viability.
On the other hand, a strategic decarbonization model could involve the gradual implementation of batteries with increasing energy density for maritime vessels. In the coming years, battery technology will evolve significantly, allowing for greater autonomy for ships. For example, lithium-titanate batteries can provide a range of 40 nautical miles, while lithium-ion cells offer three times the energy density. Additionally, lithium-silicon technology has the potential to provide five times more energy density in the near future.
This strategic approach entails replacing traditional engines with powerful electric motors and installing as many batteries as possible on ships. Periodic battery replacement will lead to a significant increase in autonomy, and the batteries can be easily replaced in transshipment ports without the need for special charging infrastructure. However, implementing this model may require more time and considerable investments.
In conclusion, while alternatives such as ammonia and methanol exist, a strategic model based on the use of evolving batteries appears to be a promising path for decarbonizing the maritime industry. With advancing technology, ships will become increasingly efficient and environmentally friendly.
Source: Clean Technica