Table 9.
Annual sugarcane residual biomass production and energy potential by top provinces.
Province
Sugarcane Bagasse
Sugarcane Trash
Production
(t)
Energy Potential
Production
(t)
Energy Potential
(TJ)
(TWh)
(TJ)
(TWh)
Gia Lai
773,316
8042
2.23
515,544
5980
1.66
Phu Yen
521,433
5423
1.51
347,622
4032
1.12
Thanh Hoa
510,188
5306
1.47
340,125
3945
1.10
Nhge An
455,134
4733
1.31
303,423
3520
0.98
Dak Lak
375,399
3904
1.08
250,266
2903
0.81
The Gai Lai province has the highest calculated energy potential from all the provinces
(in total, almost 4 TWh per year). Its potential of sugarcane residues represents one-seventh
of the country’s full energy potential. It is also higher than the total potential of several
entire regions (Northern midlands and Mountain areas, Mekong River Delta, Red River
Delta) (see Tables
8
and
9
). This potential corresponds to the energy consumption of over
860,000 households.
Moreover, as discussed above, to use biomass as biofuel more efficiently, pretreatment
is important. Especially in the case of sugarcane residuals, drying and moisture reduction
are essential for increasing the calorific value and thus obtaining higher energy yield. Using
the example of the sugarcane bagasse, Figure
4
displays the significance of the difference
between the energy potential of moist biomass (moisture content over 32%) and dry basis
biomass, i.e., 15.55 TWh per year vs. 24.63 TWh per year for Vietnam, respectively.
Agronomy 2021, 11, x FOR PEER REVIEW
16 of 20
Table 9 presents the energy potential of sugarcane bagasse as well as sugarcane trash
in the top five producing provinces. Gai Lai and Dak Lak are situated in the Central High‐
lands region, and the rest of the provinces are located in the Northern Central area and
central Coastal area region.
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