InVEST model demo: Renewable Energy (Wave Energy) Gregg Verutes

Transcription

1 InVEST model demo: Renewable Energy (Wave Energy) Gregg Verutes

2 Some WEC Devices Attenuator Point Absorber Oscillating Water Column Overtopping Device Oscillating Wave Surge Converter Submerged Pressure Differential

3 About the Model sin wave orbital velocity velocity ~ height

4 About the Model motion ~ energy sin wave INTRO METHODS INPUTS APPLICATION HANDS ON RESULTS FUTURE

5 Renewable Energy: Waves Supply Potential available Service Delivered to people Value Economic & social impacts Wave Power Captured Wave Energy Renewable electricity to grid + avoided emissions INTRO METHODS INPUTS APPLICATION HANDS ON RESULTS FUTURE

6 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

7 WEM Inputs Inputs Sea state wave height, period Outputs Energy produced Device operation performance, limitations Value of energy Economic values Cost of device, electricity, maintenance, accessibility of grid

8 Performance and Parameters xxxx

9 Machine Performance 3.5 Pelamis OWC Wave Height (m) Thousands Annual Energy Output (MWh/year/device) Pelamis EPRI OWC Energetech Wave Height (m) SF Shallow SF Deep CA HMB Portugal Ireland Location Wave Period (s) Wave Period (s)

10 Tradeoff Analysis : Cable Landing Pt. : Power Grid Connection Pt. NPV ($ mil) Kim et al. (PLOS One 2012) Commercial Fishery Salmon troll & net Crab and Shrimp INTRO METHODS INPUTS APPLICATION Recreational Fishery Salmon Ground fish HANDS ON RESULTS FUTURE

11 Wave Watch III (WW3) National Weather Service, NOAA Model ID Grid Size [min.] Extent/Region Year GLO30m WC4m EC4m 30 x 30 (54 x 54km) 4x4 (7 x 7km) 4x4 (7 x 7km) Global Ocean US west coast and Hawaiian islands US east coast and Puerto Rico

12 Running the Sample Data InVEST 3.0 Launch through Start menu Independent of ArcGIS Faster More user friendly

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14 Global Wave Power (kw/m) Pick one of these slide options, and try to stick with it throughout the presentation. ~ 40 kw/m west coast of N. America ~ 80 kw/m between England and Island

15 Making the Case There is harvestable energy in the world s oceans. Wave Power (kw/m) 45 N 0 W W 90 W 45 W 0 45 E 90 E 135 E 1 45 S Power Density (kw/m, kw/m2) Solar INTRO Wind METHODS Wave INPUTS High power density Continuous and predictable power Tide APPLICATION HANDS ON RESULTS FUTURE

16 Technology is Improving There are numerous machines under development. PWP (Pelamis) Energetech OWC Energetech (OWC) AquaBuOY But at varying maturity levels. INTRO METHODS INPUTS APPLICATION HANDS ON RESULTS FUTURE

17 Limitations and Simplifications 1. 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

18 Economic Valuation NPV T t 1 ( B t C t )(1 i) t NPV = Net Present Value ($) T = 25-year period B t = Benefits C t = C & M Costs i = Discount rate, 5%

19 Economic Valuation GV5 NPV = Benefits minus Costs Sea State Conditions Machine Type Setup Maintenance Wave Power (Potential) Performance Limitations Captured Wave Energy Cable Costs Distance to Landing Pts. Distance to Grid Connection Pts. x Price of Electricity

20 Slide 19 GV5 USE CK's ECOSYSTEM SERVICE CUES!!! Gregg Verutes, 2/4/2012

21 Validation British Columbia Marine Conservation Atlas INTRO METHODS INPUTS APPLICATION HANDS ON RESULTS FUTURE

22 Economic Valuation : Cable Landing Pts. : Power Grid Connection Pts. : Wave Watch III Grid Pts km 9.1 km 38.0 km

23 WEC Device Maturity WEC Device Maturity Rate Length (m) Width (m) Avg. Power (kw) WEC Type Pelamis Attenuator OWC Terminator OWC Wave Dragon Overtopping Wave Swing Point Abs AquaBuOY Point Abs WaveBob Point Abs Offshore OWC OWC Wave Dog Point Abs (EPRI, 2005)

24 Compatibility Analysis Cool Colored Areas = Less Value Earn most money for WE at the least cost to fishing Kim et al. (PLOS One 2012) INTRO METHODS INPUTS APPLICATION HANDS ON RESULTS FUTURE