Environmental Engineering Reference
In-Depth Information
3.2.4 Baseline Emissions
For a system where all generators use exclusively fuel oil and/or diesel fuel, the
baseline is the annual kWh generated by the renewable unit multiplied by an emis-
sion coefficient for a modern diesel generating unit of the relevant capacity operat-
ing at optimal load. Table 3.3 gives the emission coefficient values depending on
the load factors. The project activity has a load factor greater then 200 kW, there-
fore the emission factor of 0.8 kg CO 2 equivalent per kWh was selected.
Table 3.3. Emission factors for diesel generator systems (in kg CO 2 eq./kWh) for three dif-
ferent levels of load factor
Cases
Mini-grid,
24-hour ser-
vice
Mini-grid, temporary service (4-
6 hr/day); Productive applica-
tions; Water pumps
Mini-grid with
storage
Load factors
25%
50%
100%
< 15 kW
2.4
1.4
1.2
>= 15 < 35 kW
1.9
1.3
1.1
>= 35 < 135 kW
1.3
1.0
1.0
>= 135 < 200 kW
0.9
0.8
0.8
> 200 kW
0.8
0.8
0.8
The baseline emissions are calculated using equation (3.6) and the CO 2 emission
reductions from the project was calculated using equation (3.7).
kWh generated * emission factor
kgCO
2
Baseline emissions =
(
0
.
)
=
yr
kWh
CO 2
CO 2
= (18.43*10 6 )*0.8 = 14744000 kg
= 14744 t
(3.6)
yr
yr
CO 2 emission reductions = Baseline emissions - Project emissions =
= 14744-0 = 14744 t
CO 2
(3.7)
yr
3.2.5 Project Boundary
The project boundary extends from the point of rice husk storage to the point of
electricity supply to the paper mill and covers rice husk storage, boilers, steam
turbine generators and all other accessory equipments (see Fig. 3.1 ).
 
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