Observations of sunspots, active regions, filaments, coronal arcades, and interplanetary magnetic clouds indicate that the Sun preferentially exhibits left-handed, negative-helicity features in its northern hemisphere, and their opposite counterparts in the south, independent of sunspot cycle. We investigate quantitatively the generation of magnetic helicity by solar differential rotation actin...

This article describes an ongoing effort to reach consensus on the notion of capacity credit for solar power electrical generation. The article presents different methodologies quantifying capacity credit and reports on their intercomparison through experimental case studies. It concludes by reporting the initial results of a consensusbuilding effort involving the utility industry, the solar in...

The environmental benefits of solar electricity generating capacity vary across the U.S. according to solar irradiance, weather, conventional generation fleets, grid characteristics, and population. Though the 1.1 million distributed solar generation systems installed in the U.S are incentivized by local, state and federal programs, virtually none of these varies subsidies according to expected...

In response to rapidly increasing global energy demand, the development of alternative energy sources to fossil fuels has emerged as one of the most urgent technological challenges. Solar energy, which represents a nearly unlimited source of clean power, has been considered as one of the most promising new energy sources. In addition to the current success of silicon based solar cells, quantum ...

A combination of series, parallel and multilevel power electronics has been investigated as a potential interface for two different types of renewable energy sources and in order to reach higher power levels. Renewable energy sources are typically dispersed in a territory, and sources, like wind and solar, allow small to medium-scale generation of electricity. The configuration investigated in ...

We assess the implications on long-run average energy production costs and emissions of CO2 and some criteria pollutants from coupling wind, solar and natural gas generation sources. We utilize five-minute meteorological data from a US location that has been estimated to have both high-quality wind and solar resources, to simulate production of a coupled generation system that produces a consta...

INSIDE Drift-Diffusion Mode-Space Approach to Subband Transport in Devices with Transverse Quantum Confinement ......................................... 3 Monte Carlo Device Modeling of a Self-Aligned n-MOSFET ........................................................... 8 MixedMode Netlist Generation Using Gateway ..... 11 Hints, Tips and Solutions ......................................... 14 Or...

We report a novel promising semiconductor of Ag3CuS2 serving as absorber material in inorganic-organic solid-state solar cells for the first time, and the device (ITO/ZnO/Ag3CuS2/P3HT/Pt) exhibits a power conversion efficiency of 2.01%. This study opens up an available method to develop various ternary absorber materials for tertiary generation solar cells.

Advanced concepts for high efficiency solar cells such as hot carrier effects, Multi-Exciton Generation (MEG), and Intermediate-Band (IB) absorption in low-dimensional nanostructures are under focused research topics in recent years. Among various potential approaches, this chapter is devoted to the device physics and development of the state-of-the-art technologies for quantum dot-based IB sol...