@article{GENERAL, recid = {11179}, author = {Sheasby, J}, title = {Truth behind Green Alternatives for Future Ship Design}, journal = {Conference Proceedings of INEC}, address = {2024-11-05}, number = {GENERAL}, abstract = {The most recent IPCC (Intergovernmental Panel on Climate Change) report has outlined the risks and potential impacts across the globe, highlighting that changes we will face under climate change will be both difficult to predict and costly to adapt. As global resource scarcity and the energy crisis collide under a warming climate, it is critical that we look at solutions for our Defence assets to be future ready, one of the most important being how we generate and store energy for our surface fleets. With current designs, new and improved materials used to power and source energy are being highlighted as successful 'green' alternatives to oil and gas, including lithium batteries, hydrogen and methanol. Here we would investigate the impacts involved with the production of these energy sources, namely the extraction and manufacture of the materials used, looking at the possibility that the next new 'environmentally friendly' and 'green' energy sources could be more damaging on our environment. Are these sources the final and sustainable solution they are painted out to be or are they a temporary fix? We aim to delve into the impacts from origin of these 'green' alternatives including electric engines and lithium batteries, as well as resources required for methanol and hydrogen fuel to look at the impacts of their extraction, their efficiency long term, how futureproof they are (i.e., have a plenteous supply) alongside the total carbon cost of these alternatives. This paper will provide a comparative analysis of the extraction of these alternatives against extraction of current energy sources to give a broad understanding and implication of the environmental impact, shedding light on whether these alternatives are a sustainable solution for our Defence assets. This work compliments the aims of the Defence Operational Energy Strategy, released in 2022.}, url = {http://library.imarest.org/record/11179}, doi = {https://doi.org/10.24868/11179}, }