Page 7 - Alderney Regional Environmental Assessment of Renewable Energy: Environmental Report

Alderney Regional Environmental Assessment of Renewable Energy:
Environmental Report
Receptor Potential Impact Pathway Impact Significance Residual Impact
Following Mitigation
Noise/vibration during survey, construction
and decommissioning of cable routeing,
onshore substation and onshore wind turbine
Insignificant to
moderate
Insignificant to minor
Noise/vibration during operation of onshore
substation and onshore wind turbine
Insignificant to
moderate
Insignificant to minor
Visual disturbance during operation of
onshore substation and onshore wind turbine
Insignificant to
moderate
Insignificant to minor
Marine archaeology Direct damage during survey, construction,
operation and decommissioning of tidal
stream turbines, cable routeing and offshore
substation
Insignificant to major Insignificant to minor
Indirect damage during construction,
operation and decommissioning of tidal
stream turbines, cable routeing and offshore
substation
Insignificant to major Insignificant to minor
Terrestrial archaeology Direct damage during construction and
operation of onshore substation and onshore
wind turbine
Insignificant to major Insignificant to minor
Visual impacts during construction and
operation of onshore substation and onshore
wind turbine
Insignificant to major Insignificant to minor
Exclusion areas during operation of onshore
substation and onshore wind turbine
Insignificant to major Insignificant to minor
Cables, pipelines and
grid connectivity
Impact to existing grid during construction of
onshore substation and onshore wind turbine
Insignificant to
moderate
Insignificant to minor
Commercial and
recreational fisheries
Increased congestion during construction,
operation and/or decommissioning of tidal
stream turbines, cable routeing, offshore
substations and onshore substation
Insignificant to
moderate
Insignificant to minor
Temporary and long term displacement during
operation of tidal stream turbines, cable
routeing and offshore substations
Moderate to major Insignificant to minor
Damage to fishing gear during operation of
tidal stream turbines, cable routeing
Moderate Insignificant to minor
Collision risk during operation of tidal stream
turbines
Insignificant to major Insignificant to minor
Damage to fishing gear during operation of
tidal stream turbines, cable routeing
Insignificant to
moderate
Insignificant to minor
Commercial and
recreational shipping
and navigation
Collision risk during construction, operation
and decommissioning of cable routeing and
offshore substations, and during construction
and decommissioning of tidal stream turbines
Insignificant to
moderate
Insignificant to minor
Collision risk during operation of tidal stream
turbines
Insignificant to major Insignificant to minor
Changes to commercial shipping movements
during construction and decommissioning of
tidal stream turbines, cable routeing, offshore
substation, onshore substation and onshore
wind turbine
Insignificant to
moderate
Insignificant to minor
Effects on small craft navigation during
construction, operation and decommissioning
Insignificant to
moderate
Insignificant to minor
R/4001/7 (iv) R.2129