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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 253 records · Page 14
All sourcesNASA NTRSDOE OSTI
DOE OSTI2021

Marine Energy in the United States: An Overview of Opportunities

This report provides a concise and consolidated overview of the Unites States’ marine energy resources . The results reported herein are primarily based on U.S. Department of Energy (DOE)-funded marine energy resource assessments in the following technology areas: wave, tidal currents, ocean currents, ocean thermal gradients, and river currents. This report also incorporates recent updates and refinements to the U.S. wave and tidal resource assessments performed by the national labs. Many of these refinements were undertaken to address feedback from the National Research Council’s evaluation of the original resource assessments (National Research Council 2013). Further, this report refines the analysis that has been published to date by identifying the marine energy resources available in each U.S. state or region to the extent practical. In short, this report summarizes the best available data on U.S. marine energy resources at the state, regional, and national scales.

13 HYDRO ENERGY↗
DOE OSTI2019

GeoRePORT Protocol Volume I: Background Document

The aim of the GeoRePORT Protocol is not to create a country-wide reporting standard for hydrothermal resources. Instead, it aims to best fit the needs of GTO in reporting impacts of its research, development, and deployment (RD&D) activities. The goals of the GeoRePORT Protocol documents are to: provide a clear, objective, comprehensive, understandable (to technical and nontechnical audiences) protocol for reporting geothermal resource grade and project progress; provide examples for using the methodology for GTO goal setting, measuring baselines, and reporting the impact of GTO-funded projects. This Protocol will help GTO to: quantitatively identify the greatest barriers to geothermal development; develop measurable program goals the will have the greatest impact to geothermal deployment; objectively evaluate proposals based (in part) on a project's ability to contribute to program goals; monitor project progress; report on GTO portfolio performance; communicate the impacts of funding decisions to non-technical budget decision makers (e.g., U.S. Congress).

15 GEOTHERMAL ENERGY↗
DOE OSTI2024

Natura Resources Molten Salt Research Reactor (MSRR) Fuel Workshop: Summary Report

Idaho National Laboratory (INL) hosted the Natura Resources team in Idaho Falls for a 3-day fuel workshop, July 16-18, 2024. The purpose of this workshop was to understand Natura’s fuel requirements, determine the feasibility of producing that fuel at INL, and define the scope of work that would enable fueled operation of the Natura MSR-1 being deployed at Abilene Christian University (ACU).

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗
DOE OSTI2020

Implications of a regional resource adequacy program on utility integrated resource planning: Study for the Western United States

LBNL collaborated with the Western Interstate Energy Board and the University of Texas, Austin to investigate the implications of a regional resource adequacy (RA) program on utility integrated resource planning. This report is focused on an active policy discussion to develop a novel voluntary program to share capacity resource and improve RA in the Western Interconnection. This report identifies two RA components of IRP that will be highly impacted by a regional RA program: resource capacity accreditation and RA targets. There are at least four resources that will require specific attention for their capacity credit calculation: (1) variable renewable resources, (2) demand-side resources, (3) hydropower, and (4) contracts. It will then be necessary to decide on a RA target reliability metric (e.g., a planning reserve margin) that is at least the minimum requirement in IRPs to ensure consistency in RA requirement calculations. The report finds that load forecasting and transmission expansion analyses will be moderately impacted, but that most of IRP components will not be significantly impacted. The report includes (i) a review of traditional resource adequacy practices in IRP; (ii) a case study of an existing regional RA program that interacts with IRP (Southwest Power Pool) and (iii) an overview of the NWPP regional resource adequacy proposal that is the object of this work. This paper does not (1) advocate for or against a regional RA program for the NWPP, (2) make detailed design recommendations for this program, or (3) assess its benefits and costs.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗
DOE OSTI2025

EMPOWERED Distributed Energy Resources Permit Accelerator Pilot

This report summarizes the EMPOWERED Distributed Energy Resources (DER) Permit Accelerator Pilot project. Its primary objective was to streamline the design, installation, permitting, and inspections of targeted Distributed Energy Resource (DER) solutions. Streamlining these processes is critical to strengthening and accelerating the adoption of DER solutions nationwide. Moreover, streamlined processes help expedite the clean energy transition and expand energy resilience by improving understanding and capability among key stakeholders like property owners, code officials, and the general workforce. The project team accomplished this by developing and deploying a set of design and permitting guides for simple DER solutions, which they rolled out via a permitting pilot program. The project team developed nine permitting and inspection guides for simple DER solutions, as follows: 1. Single-Family and Duplex: Electric Vehicle Service Equipment (EVSE), and Storage, Solar + Storage (each in two code cycles) 2. Multi-family and Office: EVSE, Storage, Solar + Storage (each in two code cycles) 3. A permitting process guide to support the implementation of the permitting guides. The guides cover key code requirements via plan review and field inspection checklists for code officials and building owners to follow to streamline the permitting and inspections process for DER solutions. Following the development of the initial set of guides, the project team formed two cohorts, each made up of four jurisdictions, to participate in the Permit Accelerator Pilot. Each cohort received training and technical assistance to support them in incorporating the guides into use. The project successfully engaged jurisdictions in two disparate US regions: Chelsea, Somerville, Natick, and Norwood in metro Boston; and Pima County, Town of Gilbert, Flagstaff, and Sedona in Arizona. Feedback gathered from the project was valuable in refining the guides to better address jurisdictional needs. After the pilot period, the project team developed final versions of the guides based on extensive feedback from the cohorts and from external technical peer review. Feedback included needs and barriers related to implementation, as well as detailed technical improvements from external peer review. The final guides were presented in a series of webinars with a national reach, with 192 attendees from 35 states in the live session of the final webinar, and the final guides are posted online and available for use nationwide. Key findings: • The most receptive jurisdictions were those adjacent to other jurisdictions that had already adopted similar initiatives. The least receptive jurisdictions were those in the midst of adopting new code cycles. • The most common barrier to jurisdictional adoption of new guidelines were internal administrative and process delays, more so than technical barriers. • The main technical barrier to adoption proved to be the concern of fire hazard risks posed by energy storage systems. There is some apprehension in the code enforcement community about the safety of the batteries. Education coordinated with fire and safety services will help alleviate concerns and increase confidence in the acceptance of innovative technologies. • Opportunities to further leverage and advance the guides and related resources include outreach, education, and jurisdictional support; updates to the resources to align with code cycle changes and local requirements; and advancements supporting emerging technologies.

14 SOLAR ENERGY↗
DOE OSTI2018

Productive Use of Energy in African Micro-Grids: Technical and Business Considerations

Demand for electricity from small industry and businesses, which is defined as the productive use of energy (PUE), is a key success factor for micro-grids. Because of the typically low energy usage of residential customers, without linkage to and support for these energy users, micro-grids are likely to struggle to reach the critical revenue needed for financial viability. This report is a resource entrepreneurs and developers can use to understand the technical and business model challenges related to PUE in smaller micro-grids. It focuses on small agricultural processing, and small industrial and commercial loads. This report examines best practices for promoting PUE and the business models used by developers. It starts with background information and a literature review followed by a discussion of key enterprise considerations for productive use (PU) including: value chain and business case analysis, enterprise development and training, appliance financing, and developers running PU businesses. Unlike many other reports on PUE, this report is based on application specific data. The report is also unique in that it provides actual customer demographics and load profiles. This report considers PUE from both business and technical perspectives, and it considers the interests of both the micro-grid operators and the microenterprises and entrepreneurs they serve. It looks at the service levels required by different PUs and the technical characteristics and challenges of different types of PU equipment. The report also includes examples of business cases for some of the most important PU opportunities, including milling, ice making, carpentry, egg incubation, and water treatment. This report is a resource that entrepreneurs, governments, and non-governmental organizations can use to help design programs to meet their individual goals of PUE in micro-grids and economic development in rural Africa. It can also be used by developers, engineers, and other organizations designing micro-grids to inform their technical and business decisions and to improve system design, reduce risk, and increase success with adding PU loads to both new and existing micro-grids.

29 ENERGY PLANNING, POLICY, AND ECONOMY↗
DOE OSTI2022

DOE Laboratory Support for DER and Inverter-Based Resource Integration Standards (ACCEL II) (Final Report)

This report documents efforts under a project that followed work completed under Accelerating Systems Integration Standards (ACCEL). In this continuation, the project team provided support for updates to critical standards for interconnection and interoperability of distributed energy resources at the distribution level. In addition, the project contributed to development of guidance for operational best practices of the bulk power system with high levels of DERs. Additional goals of the project were to inform and develop improved recommended practices and certification standards for end-to-end interoperability of DERs, utilizing Sandia laboratory assets when needed.

24 POWER TRANSMISSION AND DISTRIBUTION↗
NASA NTRS1992

Sharing Resources In Mobile/Satellite Communications

Report presents preliminary theoretical analysis of several alternative schemes for allocation of satellite resource among terrestrial subscribers of landmobile/satellite communication system. Demand-access and random-access approaches under code-division and frequency-division concepts compared.

Yan, Tsun-Yee↗
DOE OSTI2018

CA Air Resource Board's Off-Road Diesel Equipment Regulation 2017 DOORS Reporting.

Sandia National Laboratories/CA (SNL/CA) operates 14 diesel vehicles subject to the Off-Road Diesel Equipment Regulation; all the vehicles are classified as low-use vehicles. Annually, SNL/CA must report to the CA Air Resources Board (ARB) the hour-meter readings on our Off-Road Low-Use Diesel Equipment. This is to verify to the CA ARB that our equipment is being operated less than 200 hr/yr and therefore is considered “low-use” and not subject to the strict emissions standards for off-road diesel equipment. The reporting is done using DOORS, the CA ARB’s on-line reporting tool. The hour meter data for CY2017 has already been submitted using DOORS. The final step in the annual reporting process, which needs to be done by DOE, is to submit the Responsible Official Affirmation of Reporting (ROAR), which affirms that the information reported using DOORS is accurate. The ROAR is to be signed by a “Responsible Official” and can be submitted as a hardcopy ROAR or an electronic ROAR (e-ROAR) by March 1st, 2018. CA ARB’s preferred mechanism of ROAR submission is by using the e-ROAR.

47 OTHER INSTRUMENTATION↗
DOE OSTI2018

Task 2 Report - A GIS-Based Technical Potential Assessment of Domestic Energy Resources for Electricity Generation

The purpose of this report is to support the Lao Ministry of Energy and Mines (MEM) in assessing the technical potential of domestic energy resources for utility scale electricity generation in the Lao PDR. Specifically, this work provides assessments of technical potential, and associated maps of developable areas, for energy technologies of interest. This report details the methodology, assumptions, and datasets employed in this analysis to provide a transparent, replicable process for future analyses. The methodology and results presented are intended to be a fundamental input to subsequent decision making and energy planning-related analyses. This report is the second output of the Energy Alternatives Study for the Lao PDR (Energy Alternatives Study), a collaboration led by MEM and the United States Agency for International Development under the auspices of the Smart Infrastructure for the Mekong program.1 The Energy Alternatives Study is composed of five successive tasks that collectively support the project’s goals as shown in FIGURE ES-1. This work is focused on Task 2 – Assess technical potential of domestic energy resources for electricity generation . The work was carried out by a team from the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) in collaboration with MEM and other Lao power sector stakeholders. This work concentrates on domestic energy resources for utility-scale electricity generation and considers solar photovoltaic (PV), wind, biomass, and coal resources. This work does not consider potentially imported energy resources (e.g., natural gas) or domestic energy resources that are not present in sufficient quantity for utility-scale generation (e.g., geothermal resources). A technical potential assessment of hydropower resources is currently not feasible due to the absence of required data including site-level assessments of multiple characteristics (e.g., geology environment and access) as well as spatial data on estimated non-exploited hydropower resources (Lee et al. 2018). Previous studies estimated total hydropower resource potential to be between 23,000 and 26,000 MW, of which approximately 3,894 MW has been developed (IES and MKE 2016; MEM 2015b, 2011). MEM and Électricité du Laos have gained significant experience in the evaluation and development of hydropower resources and expect to develop close to 10,034 MW of additional capacity by 2025 (MEM 2017).

29 ENERGY PLANNING, POLICY, AND ECONOMY↗
DOE OSTI2017

GeoRePORT Input Spreadsheet

The Geothermal Resource Portfolio Optimization and Reporting Tool (GeoRePORT) was developed as a way to distill large amounts of geothermal project data into an objective, reportable data set that can be used to communicate with experts and non-experts. GeoRePORT summarizes (1) resource grade and certainty and (2) project readiness. This Excel file allows users to easily navigate through the resource grade attributes, using drop-down menus to pick grades and project readiness, and then easily print and share the summary with others. This spreadsheet is the first draft, for which we are soliciting expert feedback. The spreadsheet will be updated based on this feedback to increase usability of the tool. If you have any comments, please feel free to contact us.

15 GEOTHERMAL ENERGY↗
DOE OSTI2022

The locational value of distributed energy resources: A parcel-level evaluation of solar and wind potential in New York state

We report distributed energy resources (DERs) are poised to play a significant role in evolving power systems because of their flexibility to be sited in areas of high value to the grid. Traditional DER compensation frameworks, specifically net energy metering (NEM), inadequately communicate differences in the locational and temporal value of DER generation to the grid. As a transition from NEM, New York State's (NYS's) Value of Distributed Energy Resources (VDER) framework provides a methodology for calculating different value components that DERs offer the grid. To study the impacts of VDER frameworks on DER deployment, we developed a model to assess the value of distributed solar and wind systems configured as either a behind-the-meter system or a front-of-the-meter system for each parcel of land in NYS. Using parcel-level granularity, we can closely evaluate DER locational value and siting availability, particularly in urban and suburban settings. Our analysis finds while most DER generators would be modestly compensated for deferred transmission and distribution infrastructure upgrades (~0.01 $\$$/kWh for solar PV), a subset of projects receive significant value from this component (0.035 to 0.089 $\$$/kWh for top 5% of parcels for solar PV). Finally, our analysis finds VDER provides less overall compensation than NEM to the average DER generator, however, it increases access to compensation for front-of-the-meter DERs - a large and emerging market.

14 SOLAR ENERGY↗