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QA TG5: UV, Temperature and Humidity

This presentation discusses UV, temperature, and humidity test protocols for PV modules.
Date: June 1, 2013
Creator: Miller, D.; Koehl, M.; Hirota, K. & Bath, J.
System: The UNT Digital Library

Nonperturbative short-range dynamics in TMDs

This presentation covers: deep inelastic processes and transverse momentum distributions; chiral symmetry breaking, including the physical picture, the dynamical model, and parton distributions; partonic structures, including transverse momentum distributions, coordinate space correlator, and short range correlations; and measurements of semi-inclusive deep inelastic scattering, correlations, and multi-parton processes in pp interactions.
Date: May 1, 2013
Creator: Weiss, Christian
System: The UNT Digital Library

Report on Wind Turbine Subsystem Reliability - A Survey of Various Databases

Wind industry has been challenged by premature subsystem/component failures. Various reliability data collection efforts have demonstrated their values in supporting wind turbine reliability and availability research & development and industrial activities. However, most information on these data collection efforts are scattered and not in a centralized place. With the objective of getting updated reliability statistics of wind turbines and/or subsystems so as to benefit future wind reliability and availability activities, this report is put together based on a survey of various reliability databases that are accessible directly or indirectly by NREL. For each database, whenever feasible, a brief description summarizing database population, life span, and data collected is given along with its features & status. Then selective results deemed beneficial to the industry and generated based on the database are highlighted. This report concludes with several observations obtained throughout the survey and several reliability data collection opportunities in the future.
Date: July 1, 2013
Creator: Sheng, S.
System: The UNT Digital Library

Thriving Through Tough Times

None
Date: October 30, 2013
Creator: Huber, A M & Moyle, A R
System: The UNT Digital Library

Telling Your Climate Story with Carbon Math

A presentation about innovating clean energy and clean energy communities.
Date: December 18, 2013
Creator: New Energy Cities
System: The UNT Digital Library

Climate Communication and Behavior Change

A presentation about global warming and informing others about climate change.
Date: December 11, 2013
Creator: Pike, Cara
System: The UNT Digital Library

Metrics for Evaluating Conventional and Renewable Energy Technologies

With numerous options for the future of natural gas, how do we know we're going down the right path? How do we designate a metric to measure and demonstrate change and progress, and how does that metric incorporate all stakeholders and scenarios?
Date: January 1, 2013
Creator: Mann, M. K.
System: The UNT Digital Library

Reliability of Bonded Interfaces

Presentation details the thermal performance and the reliability of electrical interconnects.
Date: July 1, 2013
Creator: DeVoto, D.
System: The UNT Digital Library

First JAM results on the determination of polarized parton distributions

The Jefferson Lab Angular Momentum (JAM) collaboration is a new initiative aimed to the study of the angular-momentum-dependent structure of the nucleon. First results on the determination of spin-dependent parton distribution functions from world data on polarized deep-inelastic scattering will be presented and compared with previous determinations from other groups. Different aspects of global QCD analysis will be discussed, including effects due to nuclear structure, higher twist, and target-mass corrections, as well as the impact of different data selections.
Date: April 1, 2013
Creator: Jimenez-Delgado, Pedro
System: The UNT Digital Library

Photovoltaic System Pricing Trends: Historical, Recent, and Near-Term Projections 2013 Edition

This briefing provides a high-level overview of historical, recent, and projected near-term PV system pricing trends in the United States, drawing on several ongoing research activities from the Lawrence Berkeley National Laboratory and the National Renewable Energy Laboratory. It also discusses the different methodologies and factors that impact the estimated price of a PV system, such as system size, location, technology, and reporting methods. These factors, including timing, can have a significant impact on system pricing.
Date: September 1, 2013
Creator: Feldman, D.; Margolis, R.; James, T.; Goodrich, A.; Barbose, G.; Dargouth, N. et al.
System: The UNT Digital Library

What We've Learned from 2.5 Years of Early Market Fuel Cell Operation

This presentation describes the results of NREL technology assessments for two early market full cell applications, backup power and material handling equipment.
Date: February 1, 2013
Creator: Kurtz, J.; Sprik, S.; Ramsden, T.; Saur, G. & Ainscough, C.
System: The UNT Digital Library

Current State of the Voluntary Renewable Energy Market

This presentation highlights the status of the voluntary green power market in 2012. The voluntary green power market totaled more than 48 million MWh in 2012, with about 1.9 million customers participating. The supply continues to be dominated by wind, though solar is increasing its share of utility green pricing programs. Prices for voluntary renewable energy certificates (RECs) increased to above $1/MWh.
Date: September 1, 2013
Creator: Heeter, J.
System: The UNT Digital Library

Accelerating Fatigue Testing for Cu Ribbon Interconnects

This presentation describes fatigue experiments and discusses dynamic mechanical loading for Cu ribbon interconnects.
Date: May 1, 2013
Creator: Bosco, N.; Silverman, T.; Wohlgemuth , J.; Kurtz, S.; Inoue, M.; Sakurai, K. et al.
System: The UNT Digital Library

Incentivizing Distributed Solar: Best Practices

The presentation discussed findings of a recent NREL technical report on best practices for designing and implementing incentives for small and mid-sized residential and commercial distributed solar energy projects. Topics covered included: factors to consider in setting and modifying incentive levels over time, differentiating incentives to encourage various market segments, and administrative issues such as providing equitable access to incentives and customer protection. In addition, the presentation explored how incentive programs can be designed to respond to changing market conditions while attempting to provide a longer-term and stable environment for the solar industry. The findings of the report were based on interviews with program administrators, regulators, and industry representatives as well as data from numerous incentive programs nationally, particularly the largest and longest-running programs.
Date: June 1, 2013
Creator: Bird, L. & Reger, A.
System: The UNT Digital Library

Evaluation of a Lower-Energy Energy Storage System (LEESS) for Full-Hybrid Electric Vehicles (HEVs)

This presentation discusses the evaluation of a lower-energy energy storage system for full-hybrid electric vehicles.
Date: April 1, 2013
Creator: Gonder, J.; Ireland, J. & Cosgrove, J.
System: The UNT Digital Library

Group 3: Humidity, Temperature, and Voltage

Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.
Date: May 1, 2013
Creator: Wohlgemuth, J.
System: The UNT Digital Library

Rebuilding for Sustainability: Case Studies in the Making

NREL has made significant contributions to communities suffering from natural disasters since 2007 in terms of technical assistance regarding energy efficiency and renewable energy options. NREL's work has covered all aspects of energy, including energy opportunities in community planning, policy design, new program design, and specific project design and implementation for energy related to electricity generation, building energy use, and transportation. This presentation highlights work done in New Orleans following Hurricane Katrina; Greensburg, Kansas, following a devastating tornado; and New York and New Jersey following Hurricane Sandy.
Date: June 1, 2013
Creator: Billman, L.
System: The UNT Digital Library

Results of IEC 62804 Draft Round Robin Testing

Three crystalline silicon module designs were distributed in five replicas each to five laboratories for testing according to the IEC 62804 (Committee Draft) system voltage durability qualification test for crystalline silicon photovoltaic (PV) modules. The stress tests were performed in environmental chambers at 60 degrees C, 85% relative humidity, 96 h, and with module nameplate system voltage applied.
Date: September 1, 2013
Creator: Hacke, P.; Terwilliger, K.; Koch, S.; Weber, T.; Berghold, J.; Hoffmann, S. et al.
System: The UNT Digital Library

Integrated Vehicle Thermal Management - Combining Fluid Loops in Electric Drive Vehicles

Plug-in hybrid electric vehicles and electric vehicles have increased vehicle thermal management complexity, using separate coolant loop for advanced power electronics and electric motors. Additional thermal components result in higher costs. Multiple cooling loops lead to reduced range due to increased weight. Energy is required to meet thermal requirements. This presentation for the 2013 Annual Merit Review discusses integrated vehicle thermal management by combining fluid loops in electric drive vehicles.
Date: July 1, 2013
Creator: Rugh, J. P.
System: The UNT Digital Library

Energy Sector Vulnerability to Climate Change: Adaptation Options to Increase Resilience

The U.S. Department of Energy is conducting an assessment of vulnerabilities of the U.S. energy sector to climate change and extreme weather. Emphasizing peer reviewed research, it seeks to quantify vulnerabilities and identify specific knowledge or technology gaps. It draws upon a July 2012 workshop, ?Climate Change and Extreme Weather Vulnerability Assessment of the US Energy Sector?, hosted by the Atlantic Council and sponsored by DOE to solicit industry input.
Date: February 1, 2013
Creator: Newmark, R. L.; Bilello, D.; Macknick, J.; Hallet, K. C.; Anderson, R.; Tidwell, V. et al.
System: The UNT Digital Library

An Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario (Report Summary)

This analysis evaluates CSP with TES in a scenario where California derives 33% of its electricity from renewable energy sources. It uses a commercial grid simulation tool to examine the avoided operational and capacity costs associated with CSP and compares this value to PV and a baseload generation with constant output. Overall, the analysis demonstrates several properties of dispatchable CSP, including the flexibility to generate during periods of high value and avoid generation during periods of lower value. Of note in this analysis is the fact that significant amount of operational value is derived from the provision of reserves in the case where CSP is allowed to provide these services. This analysis also indicates that the 'optimal' configuration of CSP could vary as a function of renewable penetration, and each configuration will need to be evaluated in terms of its ability to provide dispatchable energy, reserves, and firm capacity. The model can be used to investigate additional scenarios involving alternative technology options and generation mixes, applying these scenarios within California or in other regions of interest.
Date: April 1, 2013
Creator: Denholm, P.; Wan, Y. H.; Hummon, M. & Mehos, M.
System: The UNT Digital Library

Gearbox Reliability Collaborative Update

This presentation was given at the Sandia Reliability Workshop in August 2013 and provides information on current statistics, a status update, next steps, and other reliability research and development activities related to the Gearbox Reliability Collaborative.
Date: October 1, 2013
Creator: Sheng, S.
System: The UNT Digital Library

Development of Metric for Measuring the Impact of RD&D Funding on GTO's Geothermal Exploration Goals

The Department of Energy's Geothermal Technologies Office (GTO) provides RD&D funding for geothermal exploration technologies with the goal of lowering the risks and costs of geothermal development and exploration. In 2012, NREL was tasked with developing a metric to measure the impacts of this RD&D funding on the cost and time required for exploration activities. The development of this metric included collecting cost and time data for exploration techniques, creating a baseline suite of exploration techniques to which future exploration and cost and time improvements could be compared, and developing an online tool for graphically showing potential project impacts (all available at <a href="http://en.openei.org/wiki/Gateway:Geothermal">http://en.openei.org/wiki/Gateway:Geothermal</a>). The conference paper describes the methodology used to define the baseline exploration suite of techniques (baseline), as well as the approach that was used to create the cost and time data set that populates the baseline. The resulting product, an online tool for measuring impact, and the aggregated cost and time data are available on the Open EI website for public access (<a href="http://en.openei.org">http://en.openei.org</a>).
Date: April 1, 2013
Creator: Jenne, S.; Young, K. R. & Thorsteinsson, H.
System: The UNT Digital Library

Accelerated Stress Testing, Qualification Testing, HAST, Field Experience - What Do They All Mean?

This presentation discusses the need for a set of tests for modules that would predict their long term-field performance.
Date: May 1, 2013
Creator: Wohlgemuth, J.
System: The UNT Digital Library