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