Results 141 to 150 of about 24,229 (264)

Optimization and Cost Evaluation of an Autonomous Hybrid Renewable Energy System for Electrifying Rural Areas in Nigeria

open access: yesEnergy Science &Engineering, EarlyView.
This research explores the techno‐economic and environmental performance of fully renewable hybrid energy systems for rural electrification in Auchi, Nigeria. HOMER Pro is utilized to model and optimize PV/WT/Battery, PV/Battery, and WT/Battery configurations under identical conditions.
Ibrahim Seidu   +7 more
wiley   +1 more source

Hybrid Osprey‐Salp Swarm Optimization Algorithm for Single and Multiobjective Optimal Power Flow in Smart Grids With Renewable Energy Integration

open access: yesEnergy Science &Engineering, EarlyView.
The proposed hybrid osprey‐salp swarm optimization algorithm addresses optimal power flow (OPF) problems in smart grids incorporating solar, hydro, and thermal generators. The algorithm is validated on Institute of Electrical and Electronics Engineers 30‐, 57‐, and 118‐bus test systems across five single and multiobjective OPF scenarios.
Mujtaba Ali   +5 more
wiley   +1 more source

Analysis of the Long‐Term Stability of TSI Instruments Using Allan Deviation and the Generation of a New TSI Composite

open access: yesEarth and Space Science
The dominant external forcing to Earth's climate system is solar radiation, referred to as the solar spectral irradiance (SSI) and the total solar irradiance (TSI), which is the integral of SSI over all wavelengths.
O. Coddington   +4 more
doaj   +1 more source

Feasibility of Wind‐Powered Green Hydrogen Production via a Hybrid Graph Neural Network‐Transformer Forecasting Model

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Accurate long‐term wind speed forecasting is pivotal for the strategic planning of renewable energy infrastructure, particularly for assessing the techno‐economic feasibility of wind‐powered green hydrogen facilities. However, capturing the complex spatiotemporal dependencies in climate data remains a significant challenge. This study proposes
Iman Baghaei   +2 more
wiley   +1 more source

Calibration of the solar position sensor on GOES-R as a proxy for total solar irradiance I: Modeling the SPS bandpass

open access: yesJournal of Space Weather and Space Climate
Context: The Geostationary Environmental Operational Satellites R series (GOES-R) includes an instrument that measures visible light from the Sun at high cadence: the Solar Position Sensor (SPS).
Snow M.   +4 more
doaj   +1 more source

Parameters and method to evaluate the solar reflectance properties of reflector materials for concentrating solar power technology - Official SolarPACES reflectance guideline verstion 2.5

open access: yes, 2013
The goal of this document is to serve as guidance on the relevant parameters and measurement possibilities to reliably evaluate the reflectance quality of a solar reflector material.
Meyen, Stephanie, and , others
core  

Statistical characterization of solar irradiance variability and its effect on step voltage regulators

open access: yes, 2019
This paper examines the acceptability of two variability metrics, i.e., universal variability index (UVI) and natural variability index (NVI) for quantifying the variation of solar irradiance and PV power output under multiple timescales.
Liu, Y   +7 more
core   +1 more source

Real‐Time Incremental Learning Artificial Neural Networks Maximum Power Point Tracking With Raspberry Pi‐Based Meteorological Data Acquisition

open access: yesEnergy Science &Engineering, EarlyView.
We present a smart solar tracking method using artificial intelligence to improve the efficiency of solar panels. Unlike traditional techniques, our system learns and adapts to changing sunlight conditions, ensuring faster and more reliable power generation for real‐world energy needs.
Rida Amine   +5 more
wiley   +1 more source

Advancements in solar spectral irradiance measurements by the TSIS-1 spectral irradiance monitor and its role for long-term data continuity

open access: yesJournal of Space Weather and Space Climate
The first implementation of NASA’s Total and Spectral Solar Irradiance Sensor (TSIS-1) launched on December 15th, 2017, and was integrated into the International Space Station (ISS) to measure both the total solar irradiance (TSI) and the solar spectral ...
Richard Erik   +10 more
doaj   +1 more source

Increased efficiencies on CdTe solar cells via luminescence down-shifting with excitation energy transfer between dyes

open access: yes, 2012
The external quantum efficiencies of CdTe solar cells fabricated by the atmospheric pressure metal organic chemical vapour deposition (AP–MOCVD) method have been measured with one and two dye doped luminescence down-shifting (LDS) layers on top ...
S.J.C. Irvine   +20 more
core   +1 more source

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