Examining the breakdown of the TAC across the various sections of the process (Figure ) shows the extent to which the PST+ strain reduces the size of the cultivation and harvesting sections. While the back-end accounts for 61% of the total cost when the wild-type strain is used, this is more than halved to 27% when using the mutant strain. On a nominal basis, this represents a decrease in the cost of the backend from 1.030 MMUSD/yr to 0.215 MMUSD/yr, nearly a 5-fold reduction. Given that the PRC accounts for 75% of the total revenue, these results indicate that deploying the back-end as a stand-alone process using the PST+ strain can significantly increase its value. While this configuration results in the loss of the biogas revenue stream, the PRC decreases 51% to 23 USD/kg P due to the 3.7-fold reduction in the TAC when compared to the full process.