Technology
- Current: Capturing energy from tidal channels, ocean currents, or rivers.
- Axial Flow Turbine: Water flows parallel to the device's axis of rotation.
- Cross Flow Turbine: Water flows perpendicular to the device's axis of rotation.
- Oscillating Hydrofoil: Water induces oscillating translation of hydrodynamic surface.
- Tidal Kite: A device that 'flies' in the tidal stream, swooping in a figure-eight shape.
- Archimedes Screw: A helical surface surrounding a ventral cylindrical shaft.
- Tidal: Capturing energy from tidal fluctuations using turbines, tidal barrages, or tidal lagoons.
- Ocean Current: Capturing energy from ocean currents.
- Riverine: Capturing energy from river currents.
- Wave: Capturing energy from waves.
- Attenuator: Floating device that operates parallel to the wave direction.
- Point Absorber: Device that absorbs energy from the relative motion between a wave-activated, moving body and a fixed structure.
- Pressure Differential: Submerged or semi-submerged devices that use differences in pressure to generate electricity.
- Oscillating Water Column: Hollow structure that uses wave action to compress air through a turbine.
- Overtopping: Storage reservoir filled by breaking waves that exit through turbines.
- Oscillating Wave Surge Converter: Pendulum that oscillates as waves pass by.
- Terminator: Device that operates perpendicular to the wave direction.
- Ocean Thermal Energy Conversion: Capturing energy using temperature gradients across water depths.
- Closed Cycle: An OTEC system in which working fluid with a low-boiling point is circulated.
- Open Cycle: An OTEC system in which warm, surface seawater is the working fluid.
- Hybrid: An OTEC system in which both seawater and a working fluid are circulated.
- Salinity Gradient: Capturing energy using salinity gradients where freshwater meets seawater.
- Pressure Retarded Osmosis: Salinity gradient technology in which osmotic pressure is used to generate electricity.
- Reverse Electrodialysis: Salinity gradient technology in which cation and anion exchange membranes are used to create a "salt battery".
Collection Method
- Field Data: Data collected in a real-world scenario.
- Lab Data: Data collected in a laboratory setting.
- Modeling: A system or device that is modeled.
- Test Center: Data collected at an established test center.
- Full Scale: Devices deployed or modeled at full scale.
- Scale Device: Device deployed or modeled at smaller than full scale.
Resource
- Extreme Events: Events such as hurricanes, storms, rogue waves, and tsunamis.
- Instrumentation: Instruments placed around the device to monitor it or its effects.
- Site Characterization: Surveying a potential site for bathymetry, energy potential, etc.
Operations
- Deployment: Installation of a device.
- Maintenance: Work done on a device after it is operational.
- Condition Monitoring: Monitoring the health of a device while in operation.
- Safety and Security: Safety and protection of personnel and assets during the life cycle of the project.
- Survivability: How a device survives in the ocean (e.g., planned lifespan, fatigue studies).
- Decommissioning: Removal of a device at the end of its lifespan.
Device
- Acoustics: Analysis or measurement of the noise made by a device.
- Array Effects: Impacts of multiple devices deployed together or their interaction.
- Control: Design of control system of a device to optimize electricity generation, minimize stall, etc.
- Grid Integration: How devices integrate with the electrical grid, including storage.
- Hybrid Devices: Devices collecting energy from multiple sources (e.g., wind and wave).
- Hydrodynamics: Interactions between fluids and device structures.
- Materials: The substances from which a device is made.
- Mooring: Cables and anchors that hold a device in place.
- Performance: Analysis of device performance in various conditions or operating modes.
- Power Take Off: Design of device system to convert absorbed energy into a usable form.
- Structural: Structural design of a device or device component (e.g., blade design, loading).
- Substructure: Base/foundation of a device (e.g., pile, floating substructure).
Economics
- Cost Assessment: Analysis of a device's cost, economic feasibility, or other cost-related factors (e.g., techno-economic assessments, cost optimization).
- Levelized Cost of Energy: Analysis of energy cost over the lifetime of a device.
- Manufacturing: Descriptions of manufacturing process or costs.
- Maritime Markets: Markets and potential applications for marine renewable energy other than commercial electricity generation.
- Standards: International or country standards related to marine renewable energy.
- Supply Chain: Network of suppliers used to produce a specific device.
Acronyms
AIS: Automatic Identification System
BOEM: Bureau of Ocean Energy Management
DOE: United States Department of Energy
EMF: Electromagnetic Field
FAD: Fish Aggregating Device
GIS: Geographic Information Service
IEA: International Energy Agency
kW: Kilowatt
LCA: Life Cycle Assessment
LCOE: Levelized Cost of Energy
MHK: Marine and Hydrokinetic
MRE: Marine Renewable Energy
MSP: Marine Spatial Planning
MW: Megawatt
NOAA: National Oceanographic and Atmospheric Administration
OES: Ocean Energy Systems
ORE: Ocean Renewable Energy
OTEC: Ocean Thermal Energy Conversion
OWC: Oscillating Water Column
PNNL: Pacific Northwest National Laboratory
PRO: Pressure-Retarded Osmosis
RED: Reverse Electrodialysis
SEA: Strategic Environmental Assessment
WEC: Wave Energy Converter