Investor Presentaiton
Energies 2019, 12, 3658
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greater COV than the other regions. However, the differences between the COV values of the region C,
when compared with those in the regions A and B, are small and decrease as the water depth increases
from 25 to 200 m. The region C has the smallest wave power variability during the year, which may
lead to a higher capacity factor, while the regions A and B are the areas with the most energetic waves,
allowing the deployment of the devices with higher installed capacity. A trade-off between the WEC
nominal power and capacity factor as well as other local characteristics such as water depth should be
considered to determine the proper locations for deploying wave farms.
9°N
Latitude
0°
9°S
18°S
27°S
10
15
0
20
35
Annual
Summer
Autumn
25
20
15
10
20
30
30
15
10
25
15
30
35
20
Winter
Spring
10
15
15
20
25
25
20
L
Wave Power (kW/m)
10
15
25
10
25
5
25
20
30
30
25
35
35
30
50°W 45°W
40°W 35°W 30°W
25°W
Longitude
Figure 15. Annual and seasonal (summer, autumn, winter and spring) mean wave power density
(k W/m²) at the Brazilian coastline between January 1, 2015 and December 31, 2017.
Table 4. Average values of wave seasonal variability (SV) and coefficient of variation (COV) considering
five different bathymetries (25, 50, 100, 150 and 200 m) for each region-A, B, C and D-between
January 1, 2015 and December 31, 2017.
Region
ABCD
Bathymetry
25
50
100
150
200
COV
SV
0.502 0.285 0.509 0.258
0.596 0.283 0.615 0.287
SV
COV
SV COV SV COV SV COV
0.467 0.533 0.431 0.334 0.482 0.303
0.637 0.515 0.619 0.350 0.595 0.294
0.845 0.375 0.865 0.302 0.856 0.305 0.852 0.274 0.781 0.250
0.748 0.685 0.929 0.464 0.929 0.432 0.744 0.301 0.833 0.296
The available wave power for the Brazilian coastline was calculated at an average distance of
128 km from the coast (Table 5). Accordingly, a total available wave power of approximately 91.8 GW
was estimated considering a total coastline length of about 7491 km (an approximate value without
coastline details). It should be noted that this value is an estimation of the theoretical potential ofView entire presentation