There is a consistent recommendation across studies for more focused research on process optimization and model improvements, particularly informed by experimental and kinetics data. The integration of renewable energy sources (e.g., solar PV, wind farms) is a recurring theme in the viability of e-fuel processes . Future research should further explore the efficient coupling of e-fuel production with fluctuating renewable energy sources. The broader implications of these studies suggest a shift towards more sustainable fuel options. However, this shift requires not only technological advancements but also supportive policy frameworks and market mechanisms.