Economic Cost Model of Options to Global Sulphur Cap considering Speed Differentiation

Table 7

Comparison of the two alternatives under different discount rates.

Discount rate	Without speed optimization		Lifespan cost difference between LSFO and scrubber	With speed optimization		Lifespan cost difference between LSFO and scrubber
	LSFO (PLSFO:$547/ton) (PMGO:$585/ton)	Scrubber ($354/ton)		LSFO (PLSFO:$547/ton) (PMGO:$585/ton)	Scrubber ($354/ton)
i = 1%	$9.36 × 10^7	$6.47 × 10^7	$2.89 × 10^7	$5.68 × 10^7	$3.94 × 10^7	$1.74 × 10^7
i = 5%	$7.63 × 10^7	$5.32 × 10^7	$2.31 × 10^7	$4.63 × 10^7	$3.26 × 10^7	$1.3710^7
i = 10%	$6.07 × 10^7	$4.28 × 10^7	$1.79 × 10^7	$3.69 × 10^7	$2.64 × 10^7	$1.05 × 10^7