A presentation discussing water pollutants, water monitoring, and mercury concentrations in fish.

In order to keep the electricity grid stable and the lights on, the power system relies on certain responses from its generating fleet. This presentation evaluates the potential for wind turbines and wind power plants to provide these services and assist the grid during critical times.

None

Presents how to create effective community weatherization assistance programs to foster sustainable behavior.

Presentation discussing ways in which supervisors can individualize their training of part-time library staff based on individual learning styles. Training techniques currently in practice at the University of North Texas (UNT), Willis Library, for part-time shelvers will be demonstrated as well as assessment methods utilized to determine the effectiveness of staff training.

This presentation was given at the AWEA Project Performance and Reliability Workshop.

This presentation addresses specific actions, practices and requirements, including enhancements to existing or development of new reliability standards.

Presentation for the Student Assistant Supervisors Workgroup on motivating student employees. The author discusses training and orientation, following up, communication, recognition and rewards, the work environment and helpful resources.

This presentation was given as an invited talk to faculty and students at Wuhan University, Beijing Normal University, Nankai University, and the Library of Chinese Academy of Sciences. The presentation discusses research on multilingual information access for digital libraries and the Metadata Records Translation (MRT) Project.

This presentation provides an overview of the wind energy resource mapping efforts conducted at NREL and by Truepower.

Presentation provides an overview of NREL's project to determine compatibility and safe performance of installed fuel dispensing infrastructure with E15.

This presentation was given by NREL's Elizabeth Doris (Brown) to the New Orleans City Council in January 2008. NREL was funded by DOE to provide technical assistance to New Orleans after Hurricanes Katrina and Rita. The presentation provides an overview of strategic energy planning, case studies, and suggested next steps for implementing energy efficiency and renewable energy into the city's rebuilding efforts.

This presentation is part of the Eagle Commons Library CLC Workshop Series. It introduces Study Blue, an online study tool system. This article outlines what Study Blue can do, its features, and offers examples for how to navigate and best utilize the system.

This presentation outlines an analysis of alternate methods to obtain stabilized power performance of CdTe and CIGS PV modules.

Presentation for biennial merit review of Biofuels Atlas, a first-pass visualization tool that allows users to explore the potential of biomass-to-biofuels conversions at various locations and scales.

Because of the sensitivity of some photovoltaic devices to moisture-induced corrosion, they are packaged using impermeable front- and back-sheets with an edge seal to prevent moisture ingress. Evaluation of edge seal materials can be difficult because of the low permeation rates involved and/or non-Fickian behavior. Here, using a Ca film deposited on a glass substrate, we demonstrate the evaluation of edge seal materials in a manner that effectively duplicates their use in a photovoltaic application and compare the results with standard methods for measuring water vapor transport. We demonstrate how moisture permeation data from polymer films can be used to estimate moisture ingress rates and compare the results of these two methods. Encapsulant materials were also evaluated for comparison and to highlight the need for edge seals. Of the materials studied, dessicant-filled polyisobutene materials demonstrate by far the best potential to keep moisture out for a 20 to 30 year lifetime.

One would hope that PV modules are designed for survival in the outdoors. However, it appears that some module types are really designed to pass the qualification (IEC 61216/61646) and safety (IEC 61730 and UL 1703) tests. While this has resulted in an overall increase in module reliability and a reduction in infant mortality, it may not result in the most cost-effective solution for long-term reliability and minimum power degradation. This paper will provide several examples of module types and even solar cells designed to pass the tests that do not result in good cost-effective long-term solutions for outdoor performance. This presentation is meant to stimulate a discussion about how to remedy this situation and improve the overall PV industry.

Tests to make quantitative predictions about photovoltaic (PV) modules are needed. This presentation proposes the creation of international quality assurance standards for PV modules.

The ability to accurately predict power delivery over the course of time is of vital importance to the growth of the photovoltaic (PV) industry. Two key cost drivers are the efficiency with which sunlight is converted to power and secondly how this relationship develops over time. The accurate knowledge of power decline over time, also known as degradation rates, is essential and important to all stakeholders--utility companies, integrators, investors, and scientists alike. Different methods to determine degradation rates and discrete versus continuous data are presented, and some general best practice methods are outlined. In addition, historical degradation rates and some preliminary analysis with respect to climate are given.

Module data from NREL's CPV test bed is used to examine methods for calculating outdoor CPV power ratings. IEC 62670 and ASTM E2527 are used as a starting point for determining a module power rating on a monthly basis. Monthly power ratings vary by more than desired using existing methods. The presentation examines modifications to existing methods as well as spectral corrections to reduce variation in monthly module power ratings.

This presentation outlines the modeling of thermal fatigue in concentrating photovoltaic (CPV) assemblies.

Requirements for a standard test to rate the durability of photovoltaic (PV) modules at system voltage are discussed.

This presentation summarizes project goals; vehicle and H2 station deployment status, critical performance compared to targets; highlights of latest vehicle and infrastructure analysis results and progress; learning demo next steps; highlights of partner activities and summary.

Presentation provides an overview of NREL's project to determine compatibility and safe performance of installed fuel dispensing infrastructure with E15.