NNMREC Work Session: Regional Developments in Marine Energy March 23, 2011 Introduction to Marine...
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NNMREC Work Session: Regional Developments in Marine Energy March 23, 2011 Introduction to Marine Energy Brian Polagye University of Washington Northwest
NNMREC Work Session: Regional Developments in Marine Energy
March 23, 2011 Introduction to Marine Energy Brian Polagye
University of Washington Northwest National Marine Renewable Energy
Center
Slide 2
NNMREC Marine Renewable Energy Tidal and Ocean Current Offshore
Wind Wave Ocean Thermal
Slide 3
NNMREC Tidal Energy Basics 2-4 m/s 20-60 m Foundation Drive
Train Rotor 5-20 m 10-30 rpm Gearbox-Generator Direct Drive
Generator Pile Gravity Base
Slide 4
NNMREC Global Tidal Energy Installations ORPC Verdant Power
EMEC OpenHydro Atlantis Tidal Generation Ltd. Voith Hydro EMEC
OpenHydro Atlantis Tidal Generation Ltd. Voith Hydro FORCE
OpenHydro CleanCurrent MCT Atlantis FORCE OpenHydro CleanCurrent
MCT Atlantis CleanCurrent MCT Pulse Tidal Hammerfest Strm Voith
Hydro Snohomish PUD/Open Hydro
Slide 5
NNMREC Wave Energy Devices Point Absorber Attenuator
Overtopping Oscillating Water Column Oscillating Water Surge
Slide 6
NNMREC Global Wave Energy Installations Finavera EMEC Pelamis
Aquamarine EMEC Pelamis Aquamarine Pelamis OPT WaveGen OceanLinx
Wave Dragon Wavebob CPT
NNMREC Technology Feasibility Opportunities Challenges
Generation of energy from renewable resources Leveraging of
existing energy and maritime technologies Deploying technology at
low cost in harsh environments Lack of standards Lack of test
facilities
Slide 9
NNMREC Environmental Compatibility Opportunities Challenges
Develop truly sustainable sources of energy Mitigate potential
environmental impacts through careful design Leverage projects as
cabled observatories to better understand the oceans Regulatory
chicken and egg Lack of prioritization for studies Necessary
monitoring technologies are under- developed Overlap with basic
research questions
Slide 10
NNMREC Societal Concerns Opportunities Challenges Renewable
energy displacing fossil fuels De facto marine sanctuaries Low/no
viewshed conflicts Existing uses Information gaps for marine
spatial planning
Slide 11
NNMREC Economic Viability Opportunities Challenges Local source
of renewable energy Reinvigorate local manufacturing Distributed
generation as an alternative to transmission upgrades Energy is
cheap Cost to deploy and operate marine renewables currently higher
than terrestrial alternatives Long and uncertain permitting
requirements increase cost and financial risk
Slide 12
NNMREC What is the Future for Marine Renewables? Environmental
and social costs outweigh the benefits of marine renewable power A
single technology may not be able to satisfy all human needs Oceans
are already too crowded by existing uses Pessimists Astounding
progress in the past five years. For example, rated power for tidal
turbines is already on-par with modern wind turbines UK roadmap
calls for 2 GW of wave and tidal to come online by 2020 US roadmap
calls for 20-30 GW of wave and tidal to come online in the next 20
years Optimists