US biofuels company Gevo Inc (<a href="https://www.nasdaq.com/market-activity/stocks/gevo" target="_blank">NASDAQ:GEVO</a>) has secured a conditional commitment for a loan guarantee with disbursements totalling USD 1.46 billion (EUR 1.34bn) from the US Department of Energy (DOE) for its sustainable aviation fuel (SAF) project in Lake Preston, South Dakota.