Photovoltaic cleaning frequency optimization under different degradation rate patterns

Thermodynamic and economic comparison of photovoltaic electricity generation with and without self-cleaning photovoltaic panels

In this study, thermodynamic and economic analysis of a photovoltaic electricity generation system (PVEGS) with and without self-cleaning panels is reported. In the first part, thermodynamic analyses are used to characterize the performance of the system. In the second part, the economic comparison of photovoltaic electricity generation with and without self-cleaning panels is carried out for a...

Optimization under frequency-dependent selection.

We consider a model of frequency-dependent selection, which we refer to as the Wildcard Model. A variety of more specific models, representing quite diverse biological situations, are covered by the Wildcard Model as particular cases. Two very different particular models that are subsumed by the Wildcard Model are the game theoretically motivated two-phenotype model of Lessard [Lessard, S.,1984...

Photovoltaic Degradation Analysis and Simulated Models

Characterization of Degradation under Standard Environmental Testing Methods for Crystalline Silicon Photovoltaic Modules

Standard environmental tests have been developed for photovoltaic (PV) modules to assess the reliability of their performance in a short period of time. These tests generate different modes of degradation by combination of environmental stresses. There is a need to differentiate between the standard tests on the basis of severity. This helps to understand the individual and combined degradation...

Degradation of Photovoltaic Modules Under High Voltage Stress in the Field: Preprint

The degradation in performance for eight photovoltaic (PV) modules stressed at high voltage (HV) is presented. Four types of modules— tandem-junction and triple-junction amorphous thin-film silicon, plus crystalline and polycrystalline silicon modules—were tested, with a pair of each biased at opposite polarities. They were deployed outdoors between 2001 and 2009 with their respective HV leakag...