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Sustainability 2016, 8, 1300 12 of 21

to the total energy at the most energetic point in 50 m water depth (point 19), where it accounts for
about 2.5 MWh/m and occurs 3.5% of the time.
At the Liguria hotspot the highest contribution to the total annual energy value is given by the
Sustainability 2016, 8, 1300
12 of 21
wave condition Hs = 1.5 m and Te = 5.5 s, that occurs for 6% of the time and accounts for about
At the Liguria hotspot the highest contribution to the total annual energy value is given by the
2 MWh/m (Figure 8c). At point 14 at 50 m water depth the highest contribution to the total annual
wave condition Hs = 1.5 m and Te = 5.5 s, that occurs for 6% of the time and accounts for about
energy is about 1.5 MWh/m (Figure 8d) and is given by two different wave conditions. The first wave
2 MWh/m (Figure 8c). At point 14 at 50 m water depth the highest contribution to the total annual
condition is characterized by Hs = 1 m and Te = 5 s while the second has Hs = 1.5 m and Te = 6.5 s.
energy is about 1.5 MWh/m (Figure 8d) and is given by two different wave conditions. The first
These combinations occurred for less than 6% of the time.
wave condition is characterized by Hs = 1 m and Te = 5 s while the second has Hs = 1.5 m and Te = 6.5
In addition, in the Sardinia costal area, two different wave conditions are responsible of the
s. These combinations occurred for less than 6% of the time.
highest contribution to the total wave energy at the hotspot and at the most energetic point on 50 m of
In addition, in the Sardinia costal area, two different wave conditions are responsible of the
highest contribution to the total wave energy at the hotspot and at the most energetic point on 50 m
water depth. The first wave condition has Hs = 3 m, Te = 8.5 s while the second has Hs = 4 m, Te = 9.5 s.
of water depth. The first wave condition has Hs = 3 m, Te = 8.5 s while the second has Hs = 4 m, Te =
These combinations are present for less about 5% of the time. In the hotspot (point 4) this highest
9.5 s. These combinations are present for less about 5% of the time. In the hotspot (point 4) this
contribution to the annual energy is about 6.5 MWh/m (Figure 8e) while in the case of 50 m water
highest contribution to the annual energy is about 6.5 MWh/m (Figure 8e) while in the case of 50 m
depth (point 12) it is about 7 MWh/m (Figure 8f).
water depth (point 12) it is about 7 MWh/m (Figure 8f).
In the hotspot of the Sicily coastal area (Figure 8g), the maximum contribution to the total energy
In the hotspot of the Sicily coastal area (Figure 8g), the maximum contribution to the total
is given by Hs = 3 m, Te = 7.5 s and it reaches 4.7 MWh/m. At point 17, the most energetic point
energy is given by Hs = 3 m, Te = 7.5 s and it reaches 4.7 MWh/m. At point 17, the most energetic point
in 50 m of water depth, the maximum contribution is still given by the same wave condition and it
in 50 m of water depth, the maximum contribution is still given by the same wave condition and it
accounts for 5.1 MWh/m. This wave condition occurs for the 3% of the time.
accounts for 5.1 MWh/m. This wave condition occurs for the 3% of the time.
Hotspot Water Depth 50 m
TUSCANY

(a) (b)
LIGURIA

(c) (d)
SARDINIA

(e)
(f)

Figure 8. Cont.