Renewable Energy (Wave Energy) West Coast Vancouver Island CK Kim, Gregg Verutes, Doug Denu.

Renewable Energy (Wave Energy)West Coast Vancouver IslandCK Kim, Gregg Verutes, Doug Denu

Making the Case• There is

harvestable energy in the world’s oceans.

INTRO METHODS INPUTS APPLICATION HANDS-ON RESULTS FUTURE

180 W 135

W 90

W 45

W 0

45

E 90

E 135

E 180

E

45 S

0

45 N

0

20

40

60

80

100

120

Solar Wind Wave Tide05

1015202530

Power Density (kW/m, kW/m2)

• High power density• Continuous and

predictable power

Wave Power (kW/m)

Some WEC Devices


Attenuator Point Absorber

Oscillating Wave Surge Converter

Oscillating Water Column

Overtopping Device Submerged Pressure Differential

WEC Device Maturity


(EPRI, 2005)

WEC Device MaturityRate

Length(m)

Width(m)

Avg. Power (kW) WEC Type

Pelamis 1 120 4.6 153 Attenuator

OWC - Terminator 2 25 35 259 OWC

Wave Dragon 2 150 260 1369 Overtopping

Wave Swing 2 9.5 9.5 351 Point Abs

AquaBuOY 3 6 6 17 Point Abs

WaveBob 3 15 15 131 Point Abs

Offshore OWC 3 32 32 532 OWC

Wave Dog 3 5.4 5.4 16 Point Abs

About the Model


orbitalvelocity

sin wave

velocity ~ height

About the Model


sin wave

motion ~ energy

Renewable Energy: Waves

SupplyPotential available

ServiceDelivered to people

ValueEconomic & social impacts

• Captured Wave Energy

• Renewable electricity to grid + avoided emissions

• Wave Power


Wave Energy Model (WEM)

• To map and value wave energy resources

• To examine potential trade-offs

• To help decision-makers understand where best to install a WEC facility


WEM Inputs


InputsSea statewave height, period

Device operationperformance, limitations

Outputs

Energy produced

Value of energy

Economic valuesCost of device, electricity, maintenance, accessibility of grid

Performance and Parameters


• xxxx

Machine Performance


Wav

e H

eig

ht

(m

)

Wave Period (s)

Wav

e H

eig

ht

(m

)

Wave Period (s)

Pelamis OWC

SF-Shal-low

SF-Deep CA-HMB Portugal Ireland0.0

500.0

1000.0

1500.0

2000.0

2500.0

3000.0

3500.0

Pelamis-EPRI

OWC-Energetech

Location

An

nu

al E

nerg

y O

utp

ut

(MW

h/y

ear/

devic

e)

Wave Watch III (WW3)


National Weather Service, NOAA

Model ID Grid Size[min.] Extent/Region Year

GLO30m 30 x 30(54 x 54km) Global Ocean 2005-2010

WC4m 4x4 (7 x 7km)

US west coast and Hawaiian islands 2005-2010

EC4m 4x4 (7 x 7km)

US east coast and Puerto Rico 2005-2010

Economic Valuation


T

t

ttt iCBNPV

1

)1)((

NPV = Net Present Value ($)T = 25-year periodBt = Benefits Ct = C & M Costsi = Discount rate, 5%

Economic Valuation


Sea State Conditions

NPV = Benefits minus Costs

MachineType

Wave Power(Potential)

• Performance• Limitations

Captured Wave Energy

x Price of Electricity

• Setup• Maintenance

Cable Costs• Distance to

Landing Pts.• Distance to Grid

Connection Pts.

Gregg Verutes

USE CK's ECOSYSTEM SERVICE CUES!!!

: Power Grid Connection Pts.: Cable Landing Pts.

: Wave Watch III Grid Pts.

Economic Valuation


39.5 km

38.0 km

9.1 km

Limitations and Simplifications1. Captured wave energy indicates the yearly averaged energy

absorbed per WEC device.2. With no commercial-scale wave energy facilities

implemented to date, obtaining accurate cost data is a challenge.

3. The distance measure from a WEC facility to an underwater cable landing point is based on Euclidean metric and does not recognize any landmass within two target points.

4. The quality of wave input data determines the accuracy of model results. – Default wave input data are more appropriate for global and

regional scale applications


Tradeoff Analysis


0 - 1.5

1.5 - 3.0

3.0 - 4.5

4.5 - 6.0

6.0 - 7.5

NPV ($ mil)

COM_SAL_TRCommercial Fishery- Salmon troll & net- Crab and Shrimp

REC_FISHRecreational Fishery- Salmon- Ground fish

: Power Grid Connection Pt.: Cable Landing Pt.

Kim et al. (PLOS One 2012)

Running the Sample Data


InVEST 3.0• Launch through

‘Start’ menu

• Independent of ArcGIS

• Faster

• Moreuser-friendly


Study Site

Validation

• BritishColumbiaMarineConservationAtlas


Economic Inputs


OverlapAnalysis

• Areas ofpositive NPV


FishingActivities

• ImportanceScores


Net Value of Commercial Fishing

• Cool ColoredAreas = Less Value



Compatibility Analysis

~1 = most compatible

• xxx



Renewable Energy (Wave Energy) West Coast Vancouver Island CK Kim, Gregg Verutes, Doug Denu.

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Transcript of Renewable Energy (Wave Energy) West Coast Vancouver Island CK Kim, Gregg Verutes, Doug Denu.