KPI005 | CO2 efficiency V3.0

Key Performance Indicator

This KPI expresses the energy efficiency of the ship by comparing emitted mass of CO2 to the ship’s total transport work.

Interpretation	The expression gives the emitted mass of CO2 per ton cargo transported per mile. As the PI Value ‘Emitted Mass CO2’ is to be given in tons, the figure is multiplied by 1 million to get the KPI value in g/transport work (tonmile, passengermile, TEU mile, etc).
Notes	The issue of energy efficiency is complicated by the fact that there are several influencing factors. The commercial operator is responsible for utilization of the ship’s capacity hereby affecting the transport work. The other main factor regarding transport work is the market itself. The ship’s attributes such as hull design, engine type (and to some extent age) as well as the load factor for each voyage are all influencing the quantity of emitted mass of CO2.
Unit	g/[Cargo Unit] Mile
Scope	Ship level
Calculation period	Quarterly

Formula

[formula]KPI005 = \frac {PI007} {PI064} \times 10^6[/formula]

PI007	Emitted mass of CO2
PI064	Transport work

Example

PI007	Emitted mass of CO2	= 130,500 ton
PI064	Transport work	= 20,710,647,000 ton mile
KPI Value	CO2 efficiency	= 6.3

Rating Formula

[formula] \begin{align} \displaylines { KPI_{Value}\\ KPI_{MinReq} = 84\\ KPI_{Target} = 36 } \end{align} [/formula] [formula] KPI_{Rating} = 100 \times \frac {(KPI_{Value} - KPI_{MinReq})} {(KPI_{Target}-KPI_{MinReq})} [/formula]

Rating Example

KPI Value	= 6.3
KPI MinReq	= 84
KPI Target	= 36
KPI Rating	[formula]=KPI_{Rating} = 100 \times \frac {(KPI_{Value} - KPI_{MinReq})} {(KPI_{Target}-KPI_{MinReq})} = 100 \times \frac {(6.3 - 84)} {(36-84)} = 100[/formula]

External references

SEEMP, MEPC.1/Circ.684, GUIDELINES FOR VOLUNTARY USE OF THE SHIP ENERGY EFFICIENCY OPERATIONAL INDICATOR (EEOI), and EU MRV