The cost of PV modules fluctuates greatly depending on the
market but has declined gradually in recent years. It is also
region-specific. For the world market, the up-to-date PV module
price is $0.676/Wp [43]. In this study, it was assumed that the
cost of PV array as $2/W (including the PV module and array
installation costs). The same PV module (STP200-18/Ub-1) from
SunTech in Stage 1 of this project in was employed with rated
capacity at 200 Wp [41];
The total hydraulic head can be as much as 100 mon this island.
A conservative figure of 80 m was assumed to facilitate upper
reservoir construction.
Other basic common assumptions, such as controllers, the same
proportion of PV modules and distribution wires, are not considered
in this study.
Quotations for the key components in all options were downloaded
from company websites or directly obtained from the suppliers
by email (Table 3). The cost information was converted to
the common USD unit according to the current exchange rate. Besides,
their lifetimes or replacement periods during the 25 years
are included in this table.
All calculations were conducted using Microsoft Excel. A different
spreadsheet was employed for each option. Economic evaluations
on each spreadsheet are automatically recalculated as input
parameter values are changed. The detailed sizing procedures
adopted for the storage alternatives are illustrated in Section 3.
The cost of PV modules fluctuates greatly depending on themarket but has declined gradually in recent years. It is alsoregion-specific. For the world market, the up-to-date PV moduleprice is $0.676/Wp [43]. In this study, it was assumed that thecost of PV array as $2/W (including the PV module and arrayinstallation costs). The same PV module (STP200-18/Ub-1) fromSunTech in Stage 1 of this project in was employed with ratedcapacity at 200 Wp [41]; The total hydraulic head can be as much as 100 mon this island.A conservative figure of 80 m was assumed to facilitate upperreservoir construction. Other basic common assumptions, such as controllers, the sameproportion of PV modules and distribution wires, are not consideredin this study.Quotations for the key components in all options were downloadedfrom company websites or directly obtained from the suppliersby email (Table 3). The cost information was converted tothe common USD unit according to the current exchange rate. Besides,their lifetimes or replacement periods during the 25 yearsare included in this table.All calculations were conducted using Microsoft Excel. A differentspreadsheet was employed for each option. Economic evaluationson each spreadsheet are automatically recalculated as inputparameter values are changed. The detailed sizing proceduresadopted for the storage alternatives are illustrated in Section 3.
การแปล กรุณารอสักครู่..
