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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 55 records · Page 3
All sourcesNASA NTRSDOE OSTI
NASA NTRS1974

Wind energy developments in the 20th century

Wind turbine systems for generating electrical power have been tested in many countries. Representative examples of turbines which have produced from 100 to 1250 kW are described. The advantages of wind energy consist of its being a nondepleting, nonpolluting, and free fuel source. Its disadvantages relate to the variability of wind and the high installation cost per kilowatt of capacity of wind turbines when compared to other methods of electric-power generation. High fuel costs and potential resource scarcity have led to a five-year joint NASA-NSF program to study wind energy. The program will study wind energy conversion and storage systems with respect to cost effectiveness, and will attempt to estimate national wind-energy potential and develop techniques for generator site selection. The studies concern a small-systems (50-250 kW) project, a megawatt-systems (500-3000 kW) project, supporting research and technology, and energy storage. Preliminary economic analyses indicate that wind-energy conversion can be competitive in high-average-wind areas.

Vargo, D. J.↗
DOE OSTI2021

Earth System Model Development - Energy Exascale Earth System Model (2020 Principal Investigator Meeting Report)

As part of the U.S. Department of Energy (DOE) Office of Biological and Environmental Research (BER), the Earth System Model Development (ESMD) program area supports significant research in Earth system model development, including major efforts in the Energy Exascale Earth System Model (E3SM) project. Convened virtually on October 26–29, the 2020 ESMD-E3SM Principal Investigator (PI) Meeting provided a forum to survey ESMD sponsored research, recent progress made by the ESMD science team and the broader Earth system modeling community within and outside of DOE, foster interactions across ESMD projects, and discuss research gaps and opportunities for future advancements.

29 ENERGY PLANNING, POLICY, AND ECONOMY↗
DOE OSTI2023

Setting the Baseline: The Current Understanding of Equity in Land-Based Wind Energy Development and Operation

As discussions about economic equity and environmental justice have become more prevalent in recent years, the related concepts of "energy justice" or "energy equity" have received increasing attention from policymakers, industry, nonprofits, and academics. According to the Initiative for Energy Justice (2019), energy justice is defined as "The goal of achieving equity in both the social and economic participation in the energy system, while also remediating social, economic, and health burdens on those disproportionately harmed by the energy system" The state of equity as it applies specifically to wind energy, however, remains relatively unexplored and isolated to academia. As a result, the National Renewable Energy Laboratory's Wind Energy Equity Engagement Series aims to better understand equity in wind energy through engagement with experts and communities, including representation in decision-making around new developments, potential impacts to communities near wind energy installations, and community-level distribution of the benefits and burdens of wind energy. This report covers the first three phases of the series.

17 WIND ENERGY↗
NASA NTRS1974

Wind energy developments in the 20th century

Wind turbine systems of the past are reviewed and wind energy is reexamined as a future source of power. Various phases and objectives of the Wind Energy Program are discussed. Conclusions indicate that wind generated energy must be considered economically competitive with other power production methods.

Vargo, D. J.↗
DOE OSTI2024

Introduction to Workforce Development Energy Futures Grant [Slides]

To support Energy Futures Grant awardees in pursuing workforce efforts to support their broader projects, this presentation provides an introduction to workforce development, including what it is, who is involved, employment considerations, and an overview of the process for creating new clean energy workforce programs.

29 ENERGY PLANNING, POLICY, AND ECONOMY↗
DOE OSTI2024

OES-Environmental 2024 State of the Science Report: Environmental Effects of Marine Renewable Energy Development Around the World

This report summarizes the state of the science of environmental effects of marine renewable energy (MRE) and serves as an update and a complement to the 2020 State of the Science report. The 2024 State of the Science report was produced by the Ocean Energy Systems (OES)-Environmental initiative, under the International Energy Agency’s OES collaboration. Under OES-Environmental, 16 countries have collaborated to evaluate the “state of the science” of potential environmental effects of MRE development and to understand how they may affect consenting/permitting (hereafter consenting) of MRE devices. This report has brought together the most up-to-date information on potential environmental effects of MRE development, using information that is publicly available as well as from expert inputs. The OES-Environmental analysts from the 16 participating countries helped to scope the entirety of the report and provided valuable contributions to all chapters. The input from these contributors and reviewers has resulted in the most complete compendium of research and monitoring findings possible. This report encompasses an introduction and look ahead, as well as nine chapters that provide details of research and monitoring findings around the world on environmental effects of MRE.

16 TIDAL AND WAVE POWER↗
DOE OSTI2022

A Summary of Environmental Monitoring Recommendations for Marine Energy Development That Considers Life Cycle Sustainability

Recommendations derived from papers documenting the Triton Field Trials (TFiT) study of marine energy environmental monitoring technology and methods under the Triton Initiative (Triton), as reported in this Special Issue, are summarized here. Additionally, a brief synopsis describes how to apply the TFiT recommendations to establish an environmental monitoring campaign, and provides an overview describing the importance of identifying the optimal time to perform such campaigns. The approaches for tracking and measuring the effectiveness of recommendations produced from large environmental monitoring campaigns among the stakeholder community are discussed. The discussion extends beyond the initial scope of TFiT to encourage discussion regarding marine energy sustainability that includes life cycle assessment and other life cycle sustainability methodologies. The goal is to inspire stakeholder collaboration across topics associated with the marine energy industry, including diversity and inclusion, energy equity, and how Triton’s work connects within the context of the three pillars of energy sustainability: environment, economy, and society.

16 TIDAL AND WAVE POWER↗
DOE OSTI2023

Building the Case for Hybrid Energy Developments: Webinar Recording Day 1

INL, PNNL, and NREL, with support from our academic and industry partners, hosted a 2-day webinar to learn more about the benefits of hybrid energy systems, considerations for designing the right system for communities, and practical tools that can help with the design and development process. In Day 1 of this webinar, the focus was on why users might want to consider hybrid energy systems, and frameworks that could help inform design decisions for hybrid systems, including a valuation framework, resilience framework, and hybrid system design optimization framework.

14 SOLAR ENERGY↗
DOE OSTI2023

Building the Case for Hybrid Energy Developments: Webinar Recording Day 2

INL, PNNL, and NREL, with support from our academic and industry partners, hosted a 2-day webinar to learn more about the benefits of hybrid energy systems, considerations for designing the right system for communities, and practical tools that can help with the design and development process. In Day 2 of this webinar, the focus was on tools that can be used to help inform design decisions for hybrid systems, including resource analysis, siting, resilience, valuation, and resource optimization. Day 2 also highlighted funding opportunities for hybrid systems.

14 SOLAR ENERGY↗
DOE OSTI2023

Building the Case for Hybrid Energy Developments: Webinar Recording Day 2

INL, PNNL, and NREL, with support from our academic and industry partners, hosted a 2-day webinar to learn more about the benefits of hybrid energy systems, considerations for designing the right system for communities, and practical tools that can help with the design and development process. In Day 2 of this webinar, the focus was on tools that can be used to help inform design decisions for hybrid systems, including resource analysis, siting, resilience, valuation, and resource optimization. Day 2 also highlighted funding opportunities for hybrid systems.

14 SOLAR ENERGY↗
DOE OSTI2021

A bird of two hemispheres: an examination of Swainson’s hawk (Buteo swainsoni) ecology across a landscape of increasing wind energy development

The purpose of this study was to expand knowledge on the life history of Swainson’s hawks (Buteo swainsoni), including aspects of breeding, juvenile periods, migration, and risks posed by the wind energy industry. Data presented in this dissertation was collected in northern Texas (Armstrong, Carson, Hale, Hockley, Lubbock, Potter, Randall, and Swisher counties) from 2012 to 2018 and from satellite transmitters attached to hawks from 2012 to 2021. Information has been formatted to facilitate future publication of results and is presented here in discrete chapters grouping similar categories of information; some redundancy exists among chapters, but the bulk of each chapter contains unique analyses, results, and conclusions.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2023

Grouse and Land-Based Wind Energy Development in the United States

Several species of grouse occupy prairie and sagebrush habitat across the western United States. Sharp-tailed grouse (Tympanuchus phasianellus), greater prairie chicken (Tympanuchus cupido), and lesser prairie-chicken (Tympanuchus pallidicinctus) reside in the grassland prairies of the Great Plains. In the Intermountain West, greater sage-grouse (Centrocercus urophasianus) and Gunnison sage-grouse (Centrocercus minimus) inhabit the expansive sagebrush plains. The continued deployment of wind energy across the United States, particularly in prairie and sagebrush habitats, may result in a myriad of impacts to grouse species, although there is a high degree of uncertainty regarding the extent of the impact.

avoidance↗
DOE OSTI2024

County Land-Use Regulations for Solar Energy Development in Colorado

We present a survey of county-level policies on ground-mounted solar development across Colorado, including both solar-specific ordinances as well as general land-use code that might be applicable in counties without solar-specific policies. This report provides an accessible reference for stakeholders interested in identifying counties with particular regulations or in analyzing the diversity of regulations across Colorado. We defined a set of search criteria to find information on solar definitions and classifications, permitting processes, and use-specific requirements in each of Colorado's 64 counties. With those criteria, we reviewed relevant ordinances, land-use code, and comprehensive and master plans. If any uncertainties were identified, we contacted county officials for clarification. The findings are categorized and mapped to illustrate the distribution of key policies adopted across Colorado's counties on the following topics: solar definitions, solar siting policy documentation, categorization of PV systems for permitting, 1041 permitting, solar on agricultural land, panel height restrictions, fencing requirements, vegetation management, visual impacts, decommissioning plans, and financial assurance for decommissioning. Additionally, we identify and discuss policies that might impact the deployment of agrivoltaics, a dual land use combining both agriculture and solar on the same land, which might not fit neatly in existing zoning definitions and solar-specific regulations.

14 SOLAR ENERGY↗