The two corporations aren’t directly buying fuel from World Energy. Instead, they’ll purchase certificates representing SAF that gets pumped into the larger supply chain — then count the associated carbon reductions toward their sustainability goals. Microsoft agreed to buy certificates representing 43.7 million gallons of SAF over a 10-year period, while DHL signed a contract for 177 million gallons over seven years.

Table 5.10a. Solar REC prices during the period March 2020 – March  2021 (US$/MWh)