By National Research Council, Division on Earth and Life Studies, Ocean Studies Board, Division on Engineering and Physical Sciences, Board on Energy and Environmental Systems, Marine and Hydrokinetic Energy Technology Assessment Committee

ISBN-10: 0309269997

ISBN-13: 9780309269995

Expanding renewable strength improvement, either in the usa and out of the country, has rekindled curiosity within the strength for marine and hydrokinetic (MHK) assets to give a contribution to electrical energy iteration. those assets derive from ocean tides, waves, and currents; temperature gradients within the ocean; and free-flowing rivers and streams. One degree of the curiosity within the attainable use of those assets for electrical energy new release is the expanding variety of allows which have been filed with the Federal power Regulatory fee (FERC). As of December 2012, FERC had issued four licenses and eighty four initial allows, up from almost 0 a decade in the past. even though, each one of these allows are for advancements alongside the Mississippi River, and the particular profit discovered from all MHK assets is very small. the 1st U.S. advertisement gridconnected venture, a tidal venture in Maine with a skill of below 1 megawatt (MW), is at the moment providing a fragment of that energy to the grid and is because of be totally put in in 2013.

As a part of its evaluation of MHK assets, DOE requested the nationwide study Council (NRC) to supply specific reviews. In reaction, the NRC shaped the Committee on Marine Hydrokinetic strength know-how review. As directed in its assertion of job (SOT), the committee first constructed an period in-between record, published in June 2011, which desirous about the wave and tidal source exams (Appendix B). the present record comprises the committee's evaluate of all 5 of the DOE source different types in addition to the committee's reviews at the total MHK source evaluate procedure. This precis specializes in the committee's overarching findings and conclusions relating to a conceptual framework for constructing the source checks, the aggregation of effects right into a unmarried quantity, and the consistency throughout and coordination among the person source tests. reviews of the person source overview, additional dialogue of the sensible MHK source base, and overarching conclusions and suggestions are defined in An review of the U.S. division of Energy's Marine and Hydrokinetic source Assessment.

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Additional resources for An Evaluation of the U.S. Department of Energy's Marine and Hydrokinetic Resource Assessments

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To estimate the theoretical wave resource, the assessment group utilized a hindcast of wave conditions that was assembled by the National Oceanic and Atmospheric Administration’s (NOAA’s) National Center for Environmental Prediction using WAVEWATCH III, a state-of-the-art global wave generation and propagation model. Although the model was recently expanded to 3-1 Copyright © National Academy of Sciences. All rights reserved. S. Department of Energy's Marine and Hydrokinetic Resource Assessments Prepublication Draft – Subject to Further Editorial Correction introduce physical processes specific to intermediate and shallow water (dispersion and refraction), the version available at the time of the assessment was the deep water version, restricting its validity in intermediate and shallow water.

In addition, socioeconomic and environmental filters will ultimately limit the practical resource to only a fraction of the technical resource, so it is unlikely that the resource assessments, which at best provide only a partial assessment of the technical resource, could serve as a defensible estimate of the available practical resource. S. utility-scale electricity generation. Instead, site-by-site analysis will be needed to estimate the resource that might ultimately be available for electricity 1-11 Copyright © National Academy of Sciences.

However, these bathymetric effects are known to be important at depths shallower than approximately 50 m (Dean and Dalrymple, 1984). Shallow-water regions might be of significant interest to developers who seek to optimize the ratio of construction and operating costs to the expected extractable power (largely a function of cable cost/distance to the coast). The methodology used precludes providing site-specific information to such developers. , shoaling, refraction, diffraction). The wave resource assessment group acknowledges that its results are not accurate in the shallower waters of the inner continental shelf, and as such the shallowest water depths analyzed are 50 m (or 20 m on the Atlantic coast, where the continental shelf is smoother and less steep).

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An Evaluation of the U.S. Department of Energy's Marine and Hydrokinetic Resource Assessments by National Research Council, Division on Earth and Life Studies, Ocean Studies Board, Division on Engineering and Physical Sciences, Board on Energy and Environmental Systems, Marine and Hydrokinetic Energy Technology Assessment Committee


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