The sustainable aviation fuel (SAF) that can be produced from the near-term available waste and residue biomass in the United States is estimated to be 6.62 billion gallons (25,083,800,000 L) per year

The Sustainable Aviation Fuel (SAF) that can be produced from the near-term available waste and residue biomass in the United States is estimated to be 6.62 billion gallons (25,083,800,000 L) per year, which is approximately half of the stated goal of meeting 50% of the United States domestic aviation fuel, which is equivalent to 13.03 billion gallons (49,322,756,505 L) per year.

Biomass available from waste and residues

Table 1: Near-term waste and residue biomass availability

Near-term Waste and Residues	Quantity (million dry tons/year)
Agriculture	140.00
Forestland	30.17
General Waste	9.00
Total	179.17

Constants

Table 2: Constants for SAF production from waste and residues

Constant	Value	Units
Ethanol yield	280	L ethanol/ton dry biomass
Jet fuel yield	2.0	L ethanol/ L jet fuel
Total yearly Sustainable Aviation Fuel (SAF) requirement	49,322,756,505	L

Calculations

First, calculate the amount of ethanol that can be produced from the available biomass

$$\begin{align*} \text{Ethanol production} &= \text{Biomass availability} \times \text{Ethanol yield}\\ &= 179.17 \text{ million dry tons/year} \times 280 \text{ L ethanol/ton dry biomass}\\ &= 50,167,600,000 \text{ L ethanol/year} \end{align*}$$

From this, the amount of jet fuel that can be produced from the ethanol can be calculated by

$$\begin{align*} \text{Jet fuel production} &= \frac{\text{Ethanol production}}{\text{Jet fuel yield}}\\ &= \frac{50,167,600,000 \text{ L ethanol/year}}{2.0 \text{ L ethanol/ L jet fuel}}\\ &= 25,083,800,000 \text{ L jet fuel/year} \end{align*}$$

This is equivalent to 6.62 billion gallons of jet fuel per year.