An overview of the benefits and applications of microinverters and DC power optimizers in residential systems. Some conclusions from this report are: (1) The impact of shade is greater than just the area of shade; (2) Additional mismatch losses include panel orientation, panel distribution, inverter voltage window, soiling; (3) Per-module devices can help increase performance, 4-12% or more depending on the system; (4) Value-added benefits (safety, monitoring, reduced design constraints) are helping their adoption; and (5) The residential market is growing rapidly. Efficiency increases, cost reductions are improving market acceptance. Panel integration will further reduce price and installation cost. Reliability remains an unknown.

This presentation provides an overview of the techno-economic analysis (TEA) and life cycle assessment (LCA) capabilities at the National Renewable Energy Laboratory (NREL) and describes the value of working with NREL on TEA and LCA.

This presentation discusses the goals of NREL Analysis Accuracy R&D; BESTEST-EX goals; what BESTEST-EX is; how it works; 'Building Physics' cases; 'Building Physics' reference results; 'utility bill calibration' cases; limitations and potential future work. Goals of NREL Analysis Accuracy R&D are: (1) Provide industry with the tools and technical information needed to improve the accuracy and consistency of analysis methods; (2) Reduce the risks associated with purchasing, financing, and selling energy efficiency upgrades; and (3) Enhance software and input collection methods considering impacts on accuracy, cost, and time of energy assessments. BESTEST-EX Goals are: (1) Test software predictions of retrofit energy savings in existing homes; (2) Ensure building physics calculations and utility bill calibration procedures perform up to a minimum standard; and (3) Quantify impact of uncertainties in input audit data and occupant behavior. BESTEST-EX is a repeatable procedure that tests how well audit software predictions compare to the current state of the art in building energy simulation. There is no direct truth standard. However, reference software have been subjected to validation testing, including comparisons with empirical data.

This presentation is part of the faculty lecture series UNT Speaks Out on AIDS. This presentation discusses recent directions in psychosocial research on HIV/AIDS in the United States.

This presentation discusses the University of North Texas (UNT) Digital Scholarship Cooperative. This presentation describes what led to the UNT Digital Scholarship (DS) endeavor and campus planning effort, the aims and different scenarios studied, and the next steps planned.

Presentation for the 2011 Coalition of Networked Information (CNI) meeting discussing the Aligning National Approaches to Digital Preservation Summit, held in the capital of Estonia in May 2011.

This presentation is part of the faculty lecture series UNT Speaks Out on HIV/AIDS. This presentation discusses the geographic distribution of HIV/AIDS in Texas and the associated factors.

This presentation is part of the faculty lecture series UNT Speaks Out on HIV/AIDS. This presentation discusses HIV and AIDS in sub-Saharan Africa.

This presentation is part of the faculty lecture series UNT Speaks Out on HIV/AIDS. This presentation discusses HIV in Asia, including its history, challenges, and solutions.