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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 847 records · Page 47
All sourcesNASA NTRSDOE OSTI
DOE OSTI2018

Moving Toward Cost-Competitive, Commercial Floating Wind Energy

This presentation, delivered at the US Offshore Wind 2018 conference in Boston, puts forth three keys points regarding the advancement of floating offshore wind energy technology. First, the complex physics, economics, and logistics of an offshore floating wind plant make the engineering approach well suited to a system-focused solution to maximize performance and minimize cost. This approach involves the assembly of a computational framework that accounts for all the major engineering elements and the entire plant balance sheet, but it does not replace or minimize the value of experience. Second, several system-friendly technologies and design practices are already in development or in the scientific literature; a selection of these technologies and design practices are briefly discussed. Finally, advocating for an integrated systems approach to floating offshore wind energy is a little academic when the market and industry realities are such that different companies own different components that comprise the larger system. The industry may have to evolve to offer vertically integrated, whole-system products, perhaps evolving to resemble the aerospace industry with prime contractors. This may seem like a difficult transition, but the U.S. Department of Energy and its national laboratories can help develop and transfer technology to lower the risk involved.

17 WIND ENERGY↗
DOE OSTI2017

Cost, Supply Chain, and Manufacturing Competitiveness Issues Related to SiC-Based Variable Frequency Drives for Industrial Motor Applications

A significant fraction of industrial energy use is attributable to motor-driven systems. The use of silicon carbide (SiC) in industrial motor drives can improve efficiency and, in certain applications footprint, balance-of-system cost, and other performance metrics compared to systems using traditional silicon (Si) devices. However, adoption of these drives is currently low. Barriers to adoption include the conservative nature of the market, a lack of public sources quantifying the value proposition of technology, and supply chain issues. We present a regional bottom-up cost analysis of SiC-based power modules and variable frequency drives, as well as an analysis of the global supply chain and current status of manufacturing. These results highlight possible opportunities and challenges for potential adopters of this technology, manufacturers currently in the SiC power electronics space or looking to expand into it, and policymakers seeking to understand how to increase the adoption of these energy-efficient systems or influence where they are manufactured.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗
DOE OSTI2020

U.S. Department of Energy Solar Decathlon Competition Guide 2019-2020

This Solar Decathlon will offer collegiate teams a unique experience to develop critical career skills, learn from both national experts and peers, and gain valuable insights from world-class thought leaders. This document details the Rules for the Design Challenge and Build Challenge.

14 SOLAR ENERGY↗