This environmental impact assessment for Kriegers flak ... - Vattenfall

138 CONSEQUENSES OF THE WIND FARM
ASSESSMENT CRITERIA CONT´D
Small impact (reasonable value – minor impact/
minor value – reasonable impact)
• The structure causes a small but measurable
impact on main values of national or international
value.
• The structure causes limited impact on a locally
protection worthy cultural environment object
or very small impact on a higher value object.
Minor/no impact (minor value – minor impact)
• The structure causes a small but not measurable
impact on cultural environment values
within a national or international interest.
• The structure does not extinguish any cultural
environment values.
Conclusion
The wreck that has been identiÞ ed lies at a safe distance
from the wind farm.
No consequences are deemed to arise on cultural
environment values.
12.6 Landscape picture/seascape
picture
12.6.1 Impact
a) Daytime
During certain circumstances, the wind farm will be
visible from the shore. What determines the visibility
is:
• The distance between the wind turbines and the
point of observation
• The height above sea level of the point of observation
• The visibility: mist, clouds, light/direct light and
water and heat mirroring
• The colour of the wind turbines/the contrast against
the background
• Lighting and light marking
The impact on the landscape picture will reduce
with increased distance from the shore. In the study
“Wind power in Sweden”, guideline values for how
well offshore wind turbines are visible from shore are
given. According to the study, the turbines fade at a
distance of 8 – 10 km and at a distance of 15 – 20 km,
the turbines are hardly visible. The study does not
mention the impact at distances over 20 km, the reason
probably being that the impact at these distances are
regarded as negligible.
According to a study made by Deutsche Wetterdienst
on behalf of the group, the planned wind farm on
the German side will only be visible for 875,1 hours
per annum from a distance of 30 km (See Chapter
11.4). This corresponds to 10 % of annual hours. According
to the same study, at a distance of 40 km, the
wind farm will only be visible for 309,1 hours, i.e.
for about 3,5 % of the time. At a distance of 30 km,
the wind farm will predominantely be visible during
July, and in May and September at a 40 km distance.
Irrespective of distance, during January the wind farm
will be least visible.
The site on the Swedish side of Kriegers Flak is
located about 30 km from the coast and will therefore
probably not be visible during more than 10 % of the
annual hours. It is likely that the wind farm will be
visible for less hours as direct light often occurs in the
direction of the wind farm (the direction of sight is
from the north to south seen from the Swedish coast).
At a distance of 30 km, 48 meters of the towers are
hidden due to the curve of the earth beyond the horizon.
The equivalent number is 70 metres at a distance
of 35 km from shore (source: Lantmäteriet).
The following simulations are made by the lantmäteri
authority and shows how the wind farm would be
seen from Trelleborg during days with optimal sight
conditions.
Lantmäteriet has also made a schematic account of
the wind turbines to show the consequences of looking
at the wind farm from different angles/places.