DSD-NL 2015, Delft-FEWS Gebruikersdag, 3 Meteo Dashboard DSS Offshore Wind farms

1. “Life is all about energy,
renewable energy…”
Jan-Joost Schouten
23 juni 2015

2. 23 juni 2015
Meteo Dashboard
a decision support system for planning operation and maintenance activities
@ offshore wind farms
P201406 001 DEL - Meteo Dashboard Validation Phase
Delft-FEWS Gebruikersdag, Deltares

3. FLOW Programme
23 juni 2015

4. Introduction to offshore wind
23 juni 2015

5. Introduction to offshore wind
23 juni 2015

6. 23 juni 2015
Offshore Wind Farm Concessions in the North Sea
Source: 4COffshore.com

7. Offshore wind in Nederland
• 2015 windgebied Borssele 700 MW
• 2016 windgebied Borssele 700 MW
• 2017 windgebied Zuid-Hollandse kust 700 MW
• 2018 windgebied Zuid-Hollandse kust 700 MW
• 2019 windgebied Noord-Hollandse kust 700 MW
• (1 turbine = ~5 MW)
23 juni 2015

8. 23 juni 2015
Focus on O&M. Relevant?
• Operations and maintenance (O&M) make up 25% of the cost of
an offshore wind farm – almost as much as the wind turbines
themselves, and about as much as construction and installation
Presently more than 1500 offshore wind turbines (4.3GW) installed in the
North Sea, Irish Sea and the Baltic Sea.
EWEA: “1,503 offshore wind turbines are fully grid connected in 56 wind
farms across 10 countries, with a total capacity of 4,336 MW, as of 30 June
2012.”
In 2020 >8000 wind turbines (40GW) will be constructed in these seas
In 2030 >18000 wind turbines (150GW) are envisaged to be constructed in
these seas
(Source EWEA)

9. 23 juni 2015
Introduction to offshore wind
Operational conditions:
Maximum wave height ~1.5m?

10. 23 juni 2015

11. 23 juni 2015
Meteo Dashboard
The objective: is to develop a decision support system for operation and maintenance
activities of offshore wind farms, in order to minimize costs of MWh from offshore wind.
1. Forecasting System: a high-resolution hydrodynamic modelling system that provides
forecasts of waves, currents and water levels at each wind turbine location in the
offshore wind farm, on the basis of meteo- and offshore boundary conditions from
various sources
2. Meteo Dashboard: an integrated software system that collects, stores and presents all
relevant measured and forecasted meteo- and hydrodynamic data, in support of the
decision making process of installation and maintenance activities at the OWP
Pilot project: Tromp Binnen, concession of RWE
Current project: RWE’s offshore wind farms in the Irish Sea

12. June 23, 2015
Meteo Dashboard
Automated data error
corrections
Database
offshore measurements
(metmast, ADCP, lidar)
forecasts overall model
(DCSM, ECMWF)
Detailed calibrated Wind
Park model
Data assimilation &
Uncertainty bands
Operational
Forecasting
System
Weather windows
other …
p.e. Scour predictor
Model
Application
Tool
models…
models…
Web interface
validated
measurements
Meteo Dashboard
detailed
forecasts

13. Meteo Dashboard Ierse Zee
23 juni 2015
RWE’s offshore wind Farm in the North Sea:
•Rhyl Flats
•North Hoyle
•Gwynt y Môr

14. Components and work in progress
23 juni 2015
1. Forecasting system
•Setup Hydrodynamic model (water level, current magnitude, current direction)
•Setup Wave model (wave height, wave period, wave direction)
• Model calibration
• Model validation
• Data assimilation
• Improve accuracy of the forecast
• Determination of uncertainty band
2. Meteo dashboard
•Database
•Dashboard
•Coupling of:
• Measurements
• Forecast (hydrodynamic and wave model)
•Tools (determination of weather windows, measurement data validation, vessel movements?).
* items in red are currently under consideration, construction or partly finished / operational

15. 23 juni 2015
Forecasting system I: Hydrodynamic model
DCSM
• Grid size: 1.5’ by 1.0’ (~2 km)
• Grid dimensions: 1120 x 1260 cells
• Bathymetry based on NOOS gridded data set
• Tidal constituents from global tidal model (GOT00.2) on open
boundaries
> 8 main constituents
> 16 smaller diurnal and semi-diurnal constituents
> Annual constituent Sa
• Tide Generating Forces (TGF) included (amplitude of effect TGF
about 10 cm)
red line: DCSM v5 model boundary
every 10th line plotted

16. Hydrodynamica
23 juni 2015
DCSM grid
- Delft3D FM
- Distance net nodes:
1500 m – 80 m (near
windparks)

17. Bedlevel
23 juni 2015
North Hoyle
Gwynt y Mor
Rhyl Flats

18. Bedlevel
23 juni 2015
Measurements RWE
- 2 to 10 m resolution

19. Hydrodynamica results
23 juni 2015
GyM waveradar:
- RMSE = 0.19m

20. Wave model
23 juni 2015
TIS grid
- SWAN
- Size grid cells: 2800 m

21. Wave results
Wave rider at GyM
23 juni 2015

22. 23 juni 2015
Forecasting system: Validation
• Validation of parameters
during non-storm period
of the year:
• Water level
• Currents
• Wave height
• Wave period
• Forecast period: spring &
summer 2013
• Compare with
measurements, a.o.
Tromp Binnen Met Mast

23. Meteodashboard: measurements & data
23 juni 2015
Most of the relevant data for the project is contributed by RWE
•Installation of a new AWAC
•Provide historical data of RWE’s measurement stations (bathy, wave & current
measurements, etc.)
• Met masts
• Buoys
• Two wave radars
•Provide access to real-time data of RWE’s measurement stations
•Provide access to real-time forecast data being used now by decisions makers

24. 23 juni 2015
MeteoDashboard: Delft-FEWS and DDV
MeteoDashboard consists of a back-end system based Delft-FEWS, and a web-based front end
based on the Delta Data Viewer (“the MeteoDashboard”)
Delft-FEWS runs the forecasting system and processes all data. It also has an (more expert) thick-
client application. The DDV is a web-based front end tailored to the need to the end-user, using a
selection of data available in the Delft-FEWS system.

25. MeteoDashboard RWE
Live demo
23 juni 2015

26. Windpark, parameter and turbine selection
23 juni 2015

27. Viewing measured and forecast time series
Live demo
23 juni 2015

28. Showing different parameters
Live demo
23 juni 2015

29. Summary reports
Live demo
23 juni 2015

30. Operational tab
Mention times for morning, afternoon, etc

31. Operational tab, O&M possible
Mention times for morning, afternoon, etc

32. Operational tab, O&M not possible
Mention times for morning, afternoon, etc

33. Operational tab, around O&M threshold
Mention times for morning, afternoon, etc

34. Correction methods
23 juni 2015

35. Uncertainty info
23 juni 2015

36. Methodology can easily be extended
Example of a similar MeteoDashboard for Borssele wind farm:
23 juni 2015

37. FEWS offshore – the way forward!
23 juni 2015

38. FEWS offshore – the way forward!
23 juni 2015

39. Questions?
23 juni 2015
Questions ?
Contact details:
Jan-Joost Schouten
janjoost.schouten@deltares.nl