First Power Production Results from the Wave Star Roshage Wave - - PowerPoint PPT Presentation

first power production results from the wave star roshage
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First Power Production Results from the Wave Star Roshage Wave - - PowerPoint PPT Presentation

First Power Production Results from the Wave Star Roshage Wave Energy Converter Laurent Marquis, Head of Development , Wave Star A/S Morten Kramer, R&D engineer, Wave Star A/S Peter Frigaard, Head of Civil Engineering Department, Aalborg


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First Power Production Results from the Wave Star Roshage Wave Energy Converter

Laurent Marquis, Head of Development , Wave Star A/S Morten Kramer, R&D engineer, Wave Star A/S Peter Frigaard, Head of Civil Engineering Department, Aalborg University 3rd International Conference on Ocean Energy, 6 October, Bilbao

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The Wave Star machines The Wave Star machines

Test machine at Aalborg University

  • Deployment: 2004-2005
  • Scale: 1/40
  • Float diameter: 0.25 m

Test machine at Nissum Bredning

  • Deployment: 2006-2010
  • Scale: 1/10

Scale: 1/10

  • Float diameter: 1.0 m

Test section at Roshage Test section at Roshage

  • Deployment: 2009->
  • Scale: 1/2
  • Float diameter: 5.0 m

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Wave Star make use of a unique concept Wave Star make use of a unique concept

  • 2 rows with10 floats, 20 floats total
  • The floats are mounted on a machine which is founded on the seabed
  • All the moving parts are located above the waterline

g p

  • Hydraulic fluid is pumped from each float to a hydraulic motor, which drives a generator
  • The Wave Star machine can lift the floats out of the water into safety position

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Wave Star scale 1:40 Aalborg University, Denmark

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Normal operation Storm protection mode

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More than 4 years in operation and 15 storms without damage Wave Star scale 1:10 Nissum Bredning, Denmark

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The location for the test section (photo taken before deployment)

6 Energy Supply Chain June 2009 6

Roshage Pier, location for the Wave Star scale 1:2 test section Hanstholm, Denmark

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The machine was built in Gdansk and towed to Denmark in August 2009

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The jacking system was tested in dry dock in Frederikshavn, Denmark

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The machine was installed on 18 September 2009 Vid

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Video: Installation

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The 19th of September 2009 the installation was finalized and the machine was placed in storm protection p p Video: Storm protection

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A bridge was built during the autumn 2009, and the first guests visited the plant during COP15 and the first guests visited the plant during COP15. The machine has been supplying electricity to the grid since February 2010.

Video: Operation

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The Roshage test unit is a section

  • f the complete machine
  • f the complete machine

Parameter Roshage test unit Commercial Wave Star C5-600 kW Number of floats 2 20 Float diameter Ø5 m Ø5 m A l th 10 10 Arm length 10 m 10 m Weight 1000 Tons 1600 Tons Nominal electrical power 110 kW 600 kW

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Power measurements from Power measurements from the Roshage test unit

Measured September 2010 (Control generation 3) Measured June 2010 (Control generation 2) 30 30 ( g ) Measured May 2010 (Control generation 1) Simulation, Control generation 3 15 20 25

r (kW)

15 20 25

r (kW)

5 10 15

Power

5 10 15

Power Notes:

0.5 1 1.5 2 2.5 3

Significant wave height (m)

2 4 6 8 10 12 14 16

Wave power (kW/m)

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Notes:

  • Power is 10 minute average values of harvested power from one float (hydraulic power leaving one cylinder)
  • The same data are shown in the figures, only the x-axis is different
  • A typical wave period for the Roshage location is used for the simulated curve
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Power measurements from Power measurements from the Roshage test unit

Measured September 2010 (Control generation 3) Measured June 2010 (Control generation 2) 30 30 Measured May 2010 (Control generation 1) Simulation, Control generation 3 ForskVE Limit Curve 15 20 25

r (kW)

15 20 25

r (kW)

5 10 15

Power

5 10 15

Power Notes:

0.5 1 1.5 2 2.5 3

Significant wave height (m)

2 4 6 8 10 12 14 16

Wave power (kW/m)

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Notes:

  • Power is 10 minute average values of harvested power from one float (hydraulic power leaving one cylinder)
  • The same data are shown in the figures, only the x-axis is different
  • A typical wave period for the Roshage location is used for the simulated curve
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Approved by Approved by

If the measured production is above the limit, b idi i d f E iN t

EnergiNet is a non-profit enterprise owned by the Danish Climate and Energy Ministry Example of measured data from the Roshage test unit (10 min average values):

Measured production Limit for subsidies

subsidies are recieved from EnergiNet

PLC_Datetime AllDataValid Hs Tmean P_TwoFloats ForskVE_limit AboveLimit [%] [m] [s] [kW] [kW] [True/False] 21/09/10 09:20 100 2.08 4.72 48.98 34.24 True 21/09/10 09:30 100 1.91 4.31 37.50 28.71 True 21/09/10 09:40 100 1.94 4.10 38.02 29.80 True 21/09/10 09:50 100 2.01 3.95 33.69 32.07 True 21/09/10 10:00 100 2 03 4 47 39 91 32 85 True 21/09/10 10:00 100 2.03 4.47 39.91 32.85 True 21/09/10 10:10 100 2.17 4.23 42.91 37.42 True 21/09/10 10:20 100 2.01 4.39 38.94 32.04 True 21/09/10 10:30 100 2.01 4.14 39.84 32.02 True 21/09/10 10:40 100 2.10 4.27 40.97 35.12 True 21/09/10 10:50 100 2.03 4.01 41.76 32.55 True 21/09/10 11:00 100 1.83 4.13 32.29 26.21 True 21/09/10 11:10 100 1.97 4.28 37.60 30.71 True 21/09/10 11:20 100 1.89 3.91 36.32 28.19 True 21/09/10 11:30 100 1.97 4.34 36.78 30.64 True 21/09/10 11:40 100 1.93 4.29 40.44 29.50 True 21/09/10 11:50 100 1 96 4 34 38 75 30 35 True

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Power numbers in kW are measured harvested power (hydraulic power leaving the two cylinders). Wave climate is calculated using wave measurements at the location. 21/09/10 11:50 100 1.96 4.34 38.75 30.35 True / /

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Power measurements from Power measurements from the Roshage test unit

Measured September 2010 (Control generation 3) Measured June 2010 (Control generation 2) 4 4.5 80 90 ( g ) Measured May 2010 (Control generation 1) Simulation, Control generation 3 2 5 3 3.5 4

width (m)

50 60 70 80

dth ratio (%)

1 1.5 2 2.5

Capture w

20 30 40 50

Capture wid Notes:

2 4 6 8 10 12 14 16 0.5 1

Wave power (kW/m)

2 4 6 8 10 12 14 16 10 20

Wave power (kW/m)

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Notes:

  • Power is 10 minute average values of harvested power from one float (hydraulic power leaving one cylinder)
  • The same data are shown in the figures, only the y-axis is different
  • A typical wave period for the Roshage location is used for the simulated curve
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Power matrix for a single g Wave Star C5 600 kW machine with 20 floats

Values inside the table are average electrical power to grid in kW.

Wave height Hm0 (m) Wave period T0,2 (s) 2 - 3 3 - 4 4 - 5 5 - 6 6 - 7 7 - 8 8 - 9 9 - 10 10 - 11 11 - 12 12 - 13 0.0 - 0.5 0.5 - 1.0 49 73 85 86 83 78 72 67 63 59 1.0 - 1.5 54 136 193 205 196 182 167 153 142 132 123 1.0 1.5 54 136 193 205 196 182 167 153 142 132 123 1.5 - 2.0 106 265 347 347 322 294 265 244 224 207 193 2.0 - 2.5 175 429 522 499 457 412 372 337 312 288 267 2.5 - 3.0 262 600 600 600 600 540 484 442 399 367 340 3.0 - Storm protection

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Perspectives: Wave Star C5 Perspectives: Wave Star C5 performance at different sites in Europe

Site Belmullet, IR Nominal Power 1200 kW Storm protection Hs > 5 m Annual production 4.29 GWh Site EMEC,UK Nominal Power 1200 kW Storm protection Hs > 5 m Annual production 2.88 GWh Site Wave Hub, UK Nominal Power 1200 kW Site Horns Rev 2,DK Nominal Power 600 kW Storm protection Hs > 3 m Annual production 1.41 GWh Storm protection Hs > 5 m Annual production 2.64 GWh Site SEM-REV, F Nominal Power 1200 kW Storm protection Hs > 5 m Annual production 2.37 GWh Site Pilot Zone, P Nominal Power 1200 kW Storm protection Hs > 5 m Annual production 2.87 GWh Site BIMEP, ES Nominal Power 1200 kW Storm protection Hs > 5 m Annual production 2.21 GWh 18

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C5 Wave Star and C10 Wave Star

  • C5
  • 70 m long
  • 20 floats of Ø 5 m
  • C10
  • 140 m long
  • 20 floats of Ø10 m
  • ~ 10-15 m of water depth
  • 500 kW @ 2.5m Hs
  • ~ 20-30 m of water depth
  • 6 MW @ 5.0m Hs

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Double size = 11 times more power

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Road Map for Cost of Energy for Wave Star WEC

Based on average wave energy potential at European sites 1.0 1.1 Based on average wave energy potential at European sites

(WEC lifetime: 20 years, Interest of investment: 9%)

Development factors Energy production: 1.0 Total investment: 1.0 Maintenance: 1 0

0.7 0.8 0.9

Maintenance: 1.0

0.5 0.6 €/kWh 0.2 0.3 0.4

Development factors Energy production: 1.1 Total investment: 0.5 Maintenance: 0.8 Development factors Energy production: 1.5 Total investment: 0 1

0.0 0.1 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021

Total investment: 0.1 Maintenance: 0.5

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2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 Year

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Activities in Wave Star at present Activities in Wave Star at present

  • The Roshage test section will actively be used as test platform for Power

Take-Off optimization, test of other component/parts, and for getting Take Off optimization, test of other component/parts, and for getting maintenance data.

  • Improvement of the structural design of the C5-machine, and optimization

and reduction of systems for future machines and reduction of systems for future machines

  • Focus on reducing production and development cost for the next projects:

Expertise from similar industries

  • Focus on increasing the Power Take-Off efficiency: In collaboration with

innovative companies and universities A t ith tilit

  • Agreement with utility company
  • Find subsidiaries

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Wave Star cracks the nuts! Wave Star cracks the nuts!

To stay in the sea Take energy out of waves Cost decreasing More efficient PTO

The storm protection strategy effectively protects the Wave Star machines The Roshage WEC is connected to the grid, and it has produced energy since The energy costs for the first full WEC will not be competitive to other The first test results have shown challenges in ensuring a high efficiency of the Wave Star machines. The Roshage WEC has survived several storms with no severe damages and no service afterwards. has produced energy since January 2010. The measurements fits the expected power curve. competitive to other conventional sources of energy. The calculated costs has already been decreased b 30 % b t f th t ensuring a high efficiency of the complete power transmission to the electrical grid. Projects on improvements i ith by 30 %, but further cost reduction is needed. are on-going with universities.

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Please visit our website and get updated ! updated !

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www.wavestarenergy.com