E-fuels, created by combining green hydrogen and captured CO2, are gaining prominence as a strategic solution in the energy transition for industries facing barriers to electrification. They offer compatibility with existing infrastructure, reducing the need for modifications. Policy frameworks, like the EU's RFNBO targets and the US Clean Fuel Production Credit, are propelling e-fuels forward, leading to substantial corporate investments. E-methanol is a frontrunner in the e-fuels sector due to its versatility and mature production technologies. However, challenges such as high production costs and infrastructure limitations impede wider adoption. The aviation sector is particularly focused on e-SAF to address decarbonization challenges. While the industry shows promise with evolving technologies and market interest, overcoming hurdles like sustainable CO2 sourcing and production efficiency is crucial for widespread acceptance.