powerpoint presentation · offshore wind projects currently in progress delivering >1100 mw, and...
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5
Attractive
markets
Playing to
our strengths
Providing offshore wind to >1M homes
Offshore wind projects currently in progress delivering >1100 MW,
and potential for 5m homes
Sheringham
Shoal
Hywind
demo
2009- 2012- 2017 2017 2020-
DudgeonDogger
Bank
Hywind
Scotland
Hywind
large scale
North West
Europe
In operation In operation In operation In operation Consented
2.3 MW 317 MW 402 MW 30 MW 3 x 1.2 GW
* All capacity figures on 100% basis
2019
Arkona
385 MW
In development
2024-?
New York
United States
East Coast
In development
>1 GW
Japan
US West Coast
Current
leases
7
8
Empire WindSite Key Data
Area 79,350 acres (321 km2)
Water Depth 65 – 130 ft
Distance to shore 14 – 45 miles
Mean Wind (90 masl) 9 – 9.25 m/s*
Hs (Mean / Max) 1.1 m / 8.9m
Total Potential At least 1.5 GW**
* NREL Wind Prospector
** Subject to suitable subsurface conditions
Indicative development scenarios:
• Capacity Phased pending offtake
• Wind turbine size: 12+ MW
• First power: around 2024
• Operational lifetime: 25 years
• Number of interconnection points: 1 – 3 (subject to grid and offtake)
Overall Project Plan
SAP Permitting –12 month lookahead
Survey PlansSurvey
MeetingsSurveys
Site Assessment
Plan
Plan Approval
November
2017
January
2018
March
2018
June
2018
Mooring design
& integrity
Geophys
survey design
Archaeology &
cultural heritage
Benthic
sampling
Fisheries
liaison &
comms plan
October
2018
• Metocean buoys
• Floating LiDAR (FLiDAR) Buoys x 2
Design Envelopes & Phases
Phase 1
Phase 2
Phase 3
Birds & Bats
• NYSERDA 3 year
baseline assessment
using quarterly aerial
survey imagery across
Master Planning Area.
• Detailed quarterly
aerial survey was
conducted across
Lease Area for a
spring, summer, fall
and winter cycle.
• Other local and
regional surveys,
studies and data
• Same contractor as NYSERDA –
following identical methodology
• Survey plan has been presented to
BOEM, USFW, and NYSDEC for
technical review and comment.
• A minimum of 20% of the Lease Area
will be imaged, 10% total analysed
• 12 x monthly surveys, started
November 2017
• 1.5cm pixel resolution at sea surface
• Data publicly available online
Empire Wind Bird Surveys
Note: Images pre QC
Benthic Habitat Characterization
• New York Bight is predominantly
characterized as sand w/ isolated
patches of gravel-sand. Potential
patches of hard ground in the Lease.
• Reconnaissance assessment across
the lease area and detailed sampling
along cable routes will be conducted
in 2018.
− Grab samples and seabed
imagery
• Detailed assessment across the lease
area will be conducted in 2019 or as
appropriate.
Marine Navigation Tanker Traffic - 2013
• An assessment of visual navigation and collision avoidance;
• Impacts on communications systems, radar, and positioning systems;
• Waterway characteristics such as weather, tides, currents, and ice;
• Vessel traffic survey of 12 months of traffic;
• Risk of collision, allision, and grounding;
• Impacts on radar, both marine band and Doppler;
• Safe clearance of wind turbine rotors for identified vessel types;
• Assessment of safe navigation within the wind farm;
• Impact on USCG missions;
• Analysis of environmental response incidents in the Project Area;
• Analysis of dredging activities in the area that may be affected; and
• Risk mitigation strategies.
Tug & Barge Traffic - 2013
Marine Cultural Resources Characterization• Two categories of
resources:
− Pre-Contact (e.g.
submerged paleo-
landscapes with
preservation potential
of artifacts)
− Post-Contact (e.g.
shipwrecks)
• Assessment activity
requires detailed
mapping of the seafloor
and submarine geology
Map of the New York Bight showing approximate
location of coastline roughly 20,000 years ago
(Merwin 2010).
HRG Survey Equipment • Multibeam depth sounder
• Side scan sonar
• Magnetometer
• Shallow / Medium penetration sub-
bottom profilers
• Day grab sediment sampler
• Underwater digital video camera
Marine Mammal Mitigation Plan
• IHA submitted to NMFS for proposed survey
activity on November 10, 2017
• Proposing 24-hour survey operations
− Alternative Monitoring Plan:
• Passive Acoustic Monitoring
• Night Vision
• Infrared
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