Experiences from offshore wind
installations in the North Sea
Science Meets Industry – April 2014
Maria Pedrosa - Head Aviation Services
Silicon Valley
Anchorage
Houston
New York
Rio de Janeiro
Singapore
Tokyo
Seoul
Shanghai
Hong KongDubai
Baku
London
Aberdeen
Stavanger
Bergen
Oslo
Stockholm
Copenhagen
Hamburg
STORMGEO GROUP – where we are
COMPETENCE - INSPIRATION - INNOVATION
22 Offices g 7 Forecast Centres g 1 Vision
24/7 Operation Centres / Sales
Daytime Operational Support / Sales
R&D
Miami
Muscat
3
Core competenceDecision Support for Weather
Sensitive Operations.
Core competence• Meteorology
• Oceanography
• Naval Architecture
• Statistics
• Business development
SolutionsTransforming know-how into
cutting edge products together
with our customers.
STORMGEO GROUP – what we do
REFERENCES - North Sea/Irish Sea
Project Client
Thanet Vattenfall
London Array London Array Ltd.
Sheringham Shoal SCIRA
Gwynt y Môr RWE Innogy
Dogger Bank Fred.Olsen Windcarrier
and Forewind
Humber Gateway E.ON
Dudgeon SCIRA
Beatrice SSE/Repsol
Firth of Forth Seagreen, ESG
Hywind Scotland Statoil
Project Client
BARD 1 BARD
Nordsee Ost RWE Innogy
alpha ventus EWE
Riffgat EWE
Meerwind WindMW
Amrumbank E.ON
DanTysk ABJV, Van Oord
Borkum I Technip
HelWin1 SeaRenergy
BorWin2 SeaRenergy
Baltic 1 EnBW
Baltic 2 EnBW
Butendiek WPD
REFERENCES - GERMANY
FORECAST SITES
WHAT IS A WEATHER FORECAST?
‘A prediction of the future state of the atmosphere
based on current atmospheric conditions’
OBSERVATIONS
• Provide an accurate starting point to the forecast
• Allow real-time monitoring
• Provide a dataset for analyses, e.g.
- forecast verification
- hindcast reports
- future design criteria
Key to accurate forecasts
Forecast Models simulate the physical processes of the
atmosphere to produce a numerical forecast
FORECASTING
WRF 9 km WRF 3 km WRF 1 km
SAM
Global
Models25-100 km
Regional Models1-16 km
Local Fine Scale Models300m-4 km
3DVar/ENKF
SWAN 300m
Projects
External Data From Global to Local
FINE SCALE MODELLING
THE NEARSHORE ENVIRONMENT
Challenges:
• Model Land/Sea mask
• Coastal Effects
• Tidal Effects
Successful Forecasts:
• Observations
• Forecaster Intervention
• May Require Fine-scale Models
Grid spacing 16km
THE NEARSHORE ENVIRONMENT
Challenges:
• Model Land/Sea mask
• Coastal Effects
• Tidal Effects
Successful Forecasts:
• Observations
• Forecaster Intervention
• May Require Fine-scale Models
Grid spacing 16km
WAVE MODELS AT 300M RESOLUTION
Hit 65%
ME -0.3
Hit 72%
ME -0.2
SWAN 300 m Broadhaven
ECMWFECMWF
WAVE MODELS AT 300M RESOLUTION
Hit 65%
ME -0.3
Hit 72%
ME -0.2
SWAN 300 m Broadhaven
ECMWFECMWF
June 2013 Broadhaven Bay
Swan model identified an operational window for a Shell umbilical
laying job that saved 2-3 weeks of work
THE FORECAST PROCESS
Observations
Numerical Modelling
Customer Forecast
Human Forecaster
THE FORECAST PROCESS
Forecaster intervention is done on raw model output
THE FORECAST PROCESS
Forecaster intervention is done on raw model output
THE FORECAST PROCESS
Forecasts to Customer
THE FORECAST PROCESS
Forecasts to Customer
THE FORECAST PROCESS
Forecasts to Customer
THE FORECAST PROCESS
Forecasts to Customer“Hi Bard1 – High risk of lightning between
1500 and 1800 today when front passes”
THE FORECAST PROCESS
Forecasts to Customer“OK RWE NSO – High confidence of
weather window tomorrow. Hsig falling
below 2.1m between 0300 and 2200”
THE FORECAST PROCESS
Forecasts to Customer
“Yes LAL – Winds above 22ms-1 for next 12 hours,
but decreasing below by 0600 tomorrow”
SAFE AND EFFICIENT OPERATIONS
We manage numerous customer operational limits. It can be very complex!
One Customer typically has the following limits:
Crew boat transfer to turbines: Hsig = 1.0-1.3 m
Crew transfer to turbines by helicopter:
Wind 22 m/s. Vis. 5km. Cloud base 1500ft
Work on rotating parts in turbine: 15 m/s
All work on turbine: 25 m/s
SAFE AND EFFICIENT OPERATIONS
We manage numerous customer operational limits. It can be very complex!
……and more:
Crane vessel ops:
Transfer: Hs 2m. Wave period 8s
Jack-up: Hs 0.5-0.75m - depending on
direction of vessel vs wave direction
Crane ops: 9m/s at 100m
PositionStormGeo is the challenger in
this market, as well as offering
services to oil&gas operators
not having integrated solutions
today.
Products• Official aviation forecasts
• Operational decision
guidance
• Aviation training
• Aviation instrumentation
CertificationStormGeo is the only ICAO
certified private company in
Europe for producing aviation
forecasts.
CERTIFIED AVIATION FORECASTS
DECISION SUPPORT SOLUTIONSIntegration of our capabilities and deliveries into our customers’ operative environment
Manage risk
Improve planning
Control cost
Reduce down-time
Protect revenue
We help our
customers to
28
EXPANDING KNOWLEDGE
• Weather Appreciation Workshops
• Specialist Lunch and Learns
• Reciprocal Liaison Visits
29
Thank You