Download An Evaluation of the U.S. Department of Energy's Marine and by National Research Council, Division on Earth and Life PDF

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 in a foreign country, has rekindled curiosity within the power 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 iteration is the expanding variety of allows which were 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 if, almost all these allows are for advancements alongside the Mississippi River, and the particular gain discovered from all MHK assets is intensely small. the 1st U.S. advertisement gridconnected undertaking, a tidal undertaking in Maine with a ability of lower than 1 megawatt (MW), is at present offering a fragment of that strength to the grid and is because of be absolutely put in in 2013.

As a part of its evaluation of MHK assets, DOE requested the nationwide learn Council (NRC) to supply distinct reviews. In reaction, the NRC shaped the Committee on Marine Hydrokinetic strength expertise review. As directed in its assertion of activity (SOT), the committee first built an period in-between document, published in June 2011, which involved in the wave and tidal source checks (Appendix B). the present file includes 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 review strategy. This precis specializes in the committee's overarching findings and conclusions concerning a conceptual framework for constructing the source tests, the aggregation of effects right into a unmarried quantity, and the consistency throughout and coordination among the person source checks. evaluations of the person source review, additional dialogue of the sensible MHK source base, and overarching conclusions and proposals are defined in An overview of the U.S. division of Energy's Marine and Hydrokinetic source Assessment.

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

Example text

Although site selection may be informed by the resource assessment reviewed below, it is expected that future projects and development will continue to require site-specific data collection. S. tidal energy pilot projects. SOURCE: Verdant Power; Ocean Renewable Power Company; OpenHydro. Another important consideration is the large-scale far-field back effect of an array of turbines. In addition to local flow disturbance around an individual turbine, drag associated with the presence of turbines will reduce large-scale flow.

S. Department of Energy's Marine and Hydrokinetic Resource Assessments Prepublication Draft – Subject to Further Editorial Correction measured depths differ more than 30%), which means many of the 52 submodel domains do not contain any current data. Thus, the comparisons are more akin to spot-checking than actual validation, and comparisons are often poorest in the regions of most interest. 8 kW/m2 given by the tidal resource assessment database. Field data also show a significant ebb dominance and directional asymmetry, in contrast to flood dominance and directional symmetry given by the resource maps.

Department of Energy's Marine and Hydrokinetic Resource Assessments Prepublication Draft – Subject to Further Editorial Correction in Cobscook Bay, Maine, which has begun to deliver power to the grid. These projects demonstrate the variety of technology and the scales of power generation. In the East River, up to thirty 5-m diameter Verdant turbines will generate a nominal 35 kW each, using an open horizontal-axis design with variable yaw (Figure 2-1a). In Cobscook Bay, up to five 30-m-long ORPC turbines with a cross-flow helical design (Figure 2-1b) will have a total generation capacity of up to 300 kW (FERC, 2012).

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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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