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Active Power Control Testing at the U.S. National Wind Technology Center (NWTC)

Description: 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.
Date: January 1, 2011
Creator: Ela, E.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

Wind Turbine Gearbox Failure Modes - A Brief

Description: Wind turbine gearboxes are not always meeting 20-year design life. Premature failure of gearboxes increases cost of energy, turbine downtime, unplanned maintenance, gearbox replacement and rebuild, and increased warranty reserves. The problem is widespread, affects most Original Equipment Manufacturers, and is not caused by manufacturing practices. There is a need to improve gearbox reliability and reduce turbine downtime. The topics of this presentation are: GRC (Gearbox Reliability Collaborat… more
Date: October 1, 2011
Creator: Sheng, S.; McDade, M. & Errichello, R.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

Allocating Variability and Reserve Requirements

Description: This presentation describes how you could conceivably allocate variability and reserve requirements, including how to allocate aggregation benefits. Conclusions of this presentation are: (1) Aggregation provides benefits because individual requirements are not 100% correlated; (2) Method needed to allocate reduced requirement among participants; (3) Differences between allocation results are subtle - (a) Not immediately obvious which method is 'better'; (b) Many are numerically 'correct', they … more
Date: October 1, 2011
Creator: Kirby, B.; King, J. & Milligan, M.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

Capacity Value of Wind Plants and Overview of U.S. Experience

Description: This presentation provides an overview and summary of the capacity value of wind power plants, based primarily on the U.S. experience. Resource adequacy assessment should explicitly consider risk. Effective load carrying capability (ELCC) captures each generators contribution to resource adequacy. On their own, reserve margin targets as a percent of peak can't capture risks effectively. Recommend benchmarking reliability-based approaches with others.
Date: August 1, 2011
Creator: Milligan, M.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

Wind Energy Workforce Development: A Roadmap to a Wind Energy Educational Infrastructure

Description: Wind Powering America national technical director Ian Baring-Gould made this presentation about workforce development in the wind energy industry to an audience at the American Wind Energy Association's annual WINDPOWER conference in Anaheim. The presentation outlines job projections from the 20% Wind Energy by 2030 report and steps to take at all levels of educational institutions to meet those projections.
Date: May 1, 2011
Creator: Baring-Gould, I.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

Next Steps for the FCEV Learning Demonstration Project

Description: 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.
Date: February 1, 2011
Creator: Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Ainscough, C. & Saur, G.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

Solar PV Manufacturing Cost Model Group: Installed Solar PV System Prices

Description: EERE's Solar Energy Technologies Program is charged with leading the Secretary's SunShot Initiative to reduce the cost of electricity from solar by 75% to be cost competitive with conventional energy sources without subsidy by the end of the decade. As part of this Initiative, the program has funded the National Renewable Energy Laboratory (NREL) to develop module manufacturing and solar PV system installation cost models to ensure that the program's cost reduction targets are carefully aligned… more
Date: February 1, 2011
Creator: Goodrich, A. C.; Woodhouse, M. & James, T.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

Durability of Polymeric Encapsulation Materials for Concentrating Photovoltaic Systems [Poster]

Description: Polymeric encapsulation materials are typically used in concentrating photovoltaic (CPV) modules to protect the cell from the field environment. Because it is physically located adjacent to the cell, the encapsulation is exposed to a high optical flux, often including light in the ultraviolet (UV) and infrared (IR) wavelengths. The durability of encapsulants used in CPV modules is critical to the technology, but is presently not well understood. This work seeks to identify the appropriate mater… more
Date: February 1, 2011
Creator: Miller, D. C.; Kempe, M. D.; Araki, K.; Kennedy, C. E. & Kurtz, S. R.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department

NREL Variability and Reserves Analysis for the Western Interconnect

Description: Additional variability and uncertainty increase reserve requirements. In this light, this presentation discusses how use of generation reserves can be optimized for managing variability and uncertainty. Conclusions of this presentation are: (1) Provided a method for calculating additional reserve requirements due to wind and solar production; (2) Method is based on statistical analysis of historical time series data; (3) Reserves are dynamic, produced for each hour; (4) Reserve time series are … more
Date: October 1, 2011
Creator: Milligan, M. & King, J.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

International Quality Assurance Standards

Description: Tests to make quantitative predictions about photovoltaic (PV) modules are needed. This presentation proposes the creation of international quality assurance standards for PV modules.
Date: February 1, 2011
Creator: Kurtz, S.; Hacke, P.; Wohlgemuth, J.; Kempe, M. & Yamamichi, M.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department

Solar Data Hub

Description: As power grid integration of renewables becomes ever more important and detailed, the need for a centralized place for solar-related resource data is needed. This presentation describes such a place and website.
Date: April 1, 2011
Creator: Orwig, K.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
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