Ctws ocean energy thresher
-
Upload
blemon -
Category
Technology
-
view
564 -
download
0
Transcript of Ctws ocean energy thresher
NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy operated by the Alliance for Sustainable Energy, LLC
The Washington State Ocean Energy Conference:Deep Water Wind and Ocean Energy Economy
Bremerton, WashingtonNovember 8 & 9, 2011
Ocean Renewable Energy: Offshore Wind, Wave & Tidal Power
Presented by Robert Thresher, NREL Research Fellow
National Wind Technology Center
National Renewable Energy Laboratory Innovation for Our Energy Future
Energy sources in the United States in 2009
National Renewable Energy Laboratory Innovation for Our Energy Future
Region 0 - 30 30 - 60 > 60
New England 100.2 136.2 250.4Mid Atlantic 298.1 179.1 92.5
S. Atlantic Bight 134.1 48.8 7.7California 4.4 10.5 573.0
Pacific Northw est 15.1 21.3 305.3Great Lakes 176.7 106.4 459.4
Gulf of Mexico 340.3 120.1 133.3Haw aii 2.3 5.5 629.6
Total 1,071.2 628.0 2,451.1
GW by Depth (m)
Assumptions:5 MW/km2
7 m/s and greater 0-50nm for shore
Most U.S. Offshore Wind Resource is in Deep Water
National Renewable Energy Laboratory Innovation for Our Energy Future
Wind Technology Evolution
• Land Based Technology > 2 MW; Turbine 50% Total Installation Cost• Offshore Technology > 5 MW; Turbine 25% Total Installation Cost• Land Based Turbine Size Constrained by Highway Transport • Turbine Stiffness & Dynamic Coupling Driving Design Innovation
National Renewable Energy Laboratory Innovation for Our Energy Future
Shallow Water Technology
Transitional Depth
Technology
Deepwater Floating
Technology
Offshore Wind Technology Development
Land-based Technology
Current Technology
Future Research on Offshore Wind Technology
National Renewable Energy Laboratory Innovation for Our Energy Future
Shallow Water Bottom Mounted:GE project at Arklow Banks in the Irish Sea
Photo: R. Thresher
National Renewable Energy Laboratory Innovation for Our Energy Future
Principle Power 2-MW Demonstration
Characteristics
Country/Sponsor: Portugal
Major Partners: Vestas, EDP
Turbine Size/Description: Vestas V-80, 2 MW wind turbine
Deployment date : September 2011
Platform Type: Three – tank semisubmersible – 6 line mooring
Site: Aguçadoura, Portugal
Water Depth 40 to 50-m
Approximate Budget: $ 25M USD
Opportunities: The PPI WindFloat semi-submersible wind system is scheduled for installation and commissioning off the Portuguese coast in Sept 2011. The installation includes a grid-connected Vestas V80 2-MW wind turbine. Testing for at least 12 months is planned and will focus on performance validation. An EU Framework 7 award increased their testing capability.
National Renewable Energy Laboratory Innovation for Our Energy Future
Dynamic Analysis of Wind and Wave Interactions is an Important Technical Challenge for Floating Turbine Designs
NREL Dynamic Simulation Tool: HydroDyn
National Renewable Energy Laboratory Innovation for Our Energy Future
Visualization of Avian Interaction Zones Windfarm Flight Zone
Rotor Zone
Strike Zone
Over-flight
Fly-thru
Fatality Risk
National Renewable Energy Laboratory Innovation for Our Energy Future
Avian Strike Probability Versus Turbine Size
15 Meter Diameter and 100 kW
93 Meter Diameter and 2.5MW
Altamont ScaleNext Generation Scale
National Renewable Energy Laboratory Innovation for Our Energy Future
Three Basic Forms of Marine Hydrokinetic (MHK) EnergyCURRENTS• Activating force flows in same direction for at least a few
hours
• Tidal, river, and ocean variants
• Conversion technology is some sort of submerged turbine
WAVES• Activating force reverses direction every 5 to 20 seconds
• Conversion technology can be floating or submerged, with a wide variety of devices still being invented and developed
OCEAN THERMAL • A heat engine operating on the temperature difference
between hot surface water and cool water at 1000 meters.
• Several possible thermodynamic cycles
• Conversion technology is on a floating platform with a long pipe to deep water
National Renewable Energy Laboratory Innovation for Our Energy Future
The Many Wave Energy Technologies
National Renewable Energy Laboratory Innovation for Our Energy Future
The Several Tidal, River and Ocean Current Technologies
National Renewable Energy Laboratory Innovation for Our Energy Future
Minnesota – Economic Impacts from 1000 MW of new wind development
Payments to Landowners: • $2.7 million/year Local Property Tax Revenue:• $2.8 million/yearConstruction Phase:• 1455 new jobs• $188.5 M to local economiesOperational Phase:• 232 new long-term jobs• $21.2 M/yr to local
economies
Construction Phase:• 1530 new jobs• $150.6 M to local
economiesOperational Phase:• 177 local jobs• $18.2 M/yr to local
economies
Wind energy’s economic “ripple effect”
Construction Phase = 1-2 yearsOperational Phase = 20+ years
Total economic benefit = $1.1 billion
New local jobs during construction = 2985
New local long-term jobs = 409
Direct Impacts Indirect & Induced Impacts
Totals (construction + 20yrs)
National Renewable Energy Laboratory Innovation for Our Energy Future
Questions?
Robert Thresher, NREL Research [email protected]
Photo courtesy of Oceanenergy