Alder Fuels uses sustainable biomass, such as regenerative grasses, forest residues, and agricultural waste products, to create a low-carbon to carbon-negative greencrude that can be converted into SAF using existing bio and petroleum refinery infrastructure. In contrast to first generation SAF, which was primarily generated from non-scalable supplies of fats, oils, and grease, these biomass sources are abundantly available, and when repurposed, can contribute to soil regeneration and wildfire mitigation.