Results 21 to 30 of about 2,425,338 (382)

Photovoltaic Prediction Software: Evaluation with Real Data from Northern Spain

open access: yesApplied Sciences, 2021
Prediction of energy production is crucial for the design and installation of PV plants. In this study, five free and commercial software tools to predict photovoltaic energy production are evaluated: RETScreen, Solar Advisor Model (SAM), PVGIS, PVSyst ...
David González-Peña   +4 more
doaj   +1 more source

The multi-scale nature of the solar wind [PDF]

open access: yesLiving Reviews in Solar Physics, 2018
The solar wind is a magnetized plasma and as such exhibits collective plasma behavior associated with its characteristic spatial and temporal scales. The characteristic length scales include the size of the heliosphere, the collisional mean free paths of
D. Verscharen, K. Klein, B. Maruca
semanticscholar   +1 more source

Research on multi-market strategies for virtual power plants with hydrogen energy storage

open access: yesFrontiers in Energy Research, 2023
As the main body of resource aggregation, Virtual Power Plant (VPP) not only needs to participate in the external energy market but also needs to optimize the management of internal resources.
Wenyu Zhang   +6 more
doaj   +1 more source

Electrons in the Young Solar Wind: First Results from the Parker Solar Probe [PDF]

open access: yesAstrophysical Journal Supplement Series, 2019
The Solar Wind Electrons Alphas and Protons experiment on the Parker Solar Probe (PSP) mission measures the three-dimensional electron velocity distribution function.
J. Halekas   +17 more
semanticscholar   +1 more source

Control Method for Improving Voltage Response and Ripple of Isolated DC-DC Converter

open access: yesFrontiers in Energy Research, 2022
Affected by the abrupt changes of load and unregulated first-stage rectifiers, it is difficult for the output voltage of the isolated DC-DC converter with traditional proportional-integral (PI) control to meet the needs of industrial applications such as
Ming Li   +7 more
doaj   +1 more source

Evaluation of the Vertical Sky Component without Obstructions for Daylighting in Burgos, Spain

open access: yesApplied Sciences, 2020
Daylight availability knowledge is the first step for an energetic and visually efficient building and city design. It can be estimated with the Vertical Sky Component (VSC), which is defined as the ratio of the vertical diffuse illuminance over the ...
Diego Granados-López   +4 more
doaj   +1 more source

The radial evolution of solar wind speeds [PDF]

open access: yes, 2011
The WSA-ENLIL model predicts significant evolution of the solar wind speed. Along a flux tube the solar wind speed at 1.0 AU and beyond is found to be significantly altered from the solar wind speed in the outer corona at 0.1 AU, with most of the change ...
Arge, C. N.   +4 more
core   +3 more sources

Nine Outstanding Questions of Solar Wind Physics

open access: yesJournal of Geophysical Research - Space Physics, 2020
In situ measurements of the solar wind have been available for almost 60 years, and in that time plasma physics simulation capabilities have commenced and ground‐based solar observations have expanded into space‐based solar observations.
N. Viall, J. Borovsky
semanticscholar   +1 more source

Daily data of Global Vertical Insolation in the four cardinal orientations in Burgos, Spain

open access: yesData in Brief, 2018
Daily data of Global, Diffuse and Beam Horizontal Insolation and Global Vertical (North, South, East and West orientations) insolation recorded in Burgos, Spain, are presented in this paper.
M. Diez-Mediavilla   +4 more
doaj   +1 more source

Reconstruction of Helio-latitudinal Structure of the Solar Wind Proton Speed and Density [PDF]

open access: yes, 2015
The modeling of the heliosphere requires continuous three-dimensional solar wind data. The in-situ out-of-ecliptic measurements are very rare, so that other methods of solar wind detection are needed.
Bzowski, Maciej   +3 more
core   +2 more sources

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