Using time-windowed solar radiation profiles to assess the daily uncertainty of solar thermal electricity production forecasts

Biencinto, Mario; González, L.; Valenzuela, Loreto

doi:10.1016/j.jclepro.2022.134821

Cited by 5 publications

(2 citation statements)

References 51 publications

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“…The investigation was conducted using EBSILON ® Professional, a feature of commercial software created to model thermodynamic processes, notably for the optimization of power plants [91]. Under steady-state settings, calculations were carried out at the design point, which, in terms of solar system analysis, corresponds to March 24 at 12 h solar time (spring equinox) [92]. The ambient temperature was supposed to be 25, and the relative humidity was assumed to be 60%.…”

Section: System Explanationmentioning

confidence: 99%

Solar-Powered Water Electrolysis Using Hybrid Solid Oxide Electrolyzer Cell (SOEC) for Green Hydrogen—A Review

Afroze,

Sofri,

Reza

et al. 2023

Energies

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The depletion of fossil fuels in the current world has been a major concern due to their role as a primary source of energy for many countries. As non-renewable sources continue to deplete, there is a need for more research and initiatives to reduce reliance on these sources and explore better alternatives, such as renewable energy. Hydrogen is one of the most intriguing energy sources for producing power from fuel cells and heat engines without releasing carbon dioxide or other pollutants. The production of hydrogen via the electrolysis of water using renewable energy sources, such as solar energy, is one of the possible uses for solid oxide electrolysis cells (SOECs). SOECs can be classified as either oxygen-ion conducting or proton-conducting, depending on the electrolyte materials used. This article aims to highlight broad and important aspects of the hybrid SOEC-based solar hydrogen-generating technology, which utilizes a mixed-ion conductor capable of transporting both oxygen ions and protons simultaneously. In addition to providing useful information on the technological efficiency of hydrogen production in SOEC, this review aims to make hydrogen production more efficient than any other water electrolysis system.

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Section: System Explanationmentioning

confidence: 99%

Solar-Powered Water Electrolysis Using Hybrid Solid Oxide Electrolyzer Cell (SOEC) for Green Hydrogen—A Review

Afroze,

Sofri,

Reza

et al. 2023

Energies

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“…In addition, another effective method for addressing radiation uncertainty is to generate simulate sequences using stochastic modeling of cloud cover [21]. The radiation outside of the atmosphere at any given location on earth can be determined based on its relative position to the sun.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Design of Solar-Powered Energy Systems Based on Daily Clearness State Evolution

Liang,

Ma,

Wang

et al. 2024

Energies

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The optimal designing of the hybrid energy system (HES) is a challenging task due to the multiple objectives and various uncertainties. Especially for HES, primarily powered by solar energy, the reference solar radiation data directly impact the result of the optimization design. To incorporate the stochastic characteristics of solar radiation into the sizing process, a data-driven stochastic modeling method for solar radiation is proposed. The method involves two layers of stochastic processes that capture the intraday variation and daily evolution of solar radiation. First, the clearness index (CI) is introduced to describe the radiation intensity at different times. Then, the daily clearness state (DCS) is proposed, based on the statistical indicators of the intraday CI. The Markov model is used to describe the stochastic evolutionary characteristics between different DCSs. The probabilistic distribution of the CI under different DCS is obtained based on the diffusion kernel density estimation (DKDE), which is used for the stochastic generation of the CI at various times of the day. Finally, the radiation profile required for the optimal design is obtained by the stochastic generation of the DCS sequences and the intraday clearness index under corresponding states. A case study of an off-grid solar-powered HES is provided to illustrate this methodology.

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Hourly solar irradiance forecasting based on statistical methods and a stochastic modeling approach for residual error compensation

Nikseresht,

Amindavar

2023

Stoch Environ Res Risk Assess

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Using time-windowed solar radiation profiles to assess the daily uncertainty of solar thermal electricity production forecasts

Cited by 5 publications

References 51 publications

Solar-Powered Water Electrolysis Using Hybrid Solid Oxide Electrolyzer Cell (SOEC) for Green Hydrogen—A Review

Solar-Powered Water Electrolysis Using Hybrid Solid Oxide Electrolyzer Cell (SOEC) for Green Hydrogen—A Review

Adaptive Design of Solar-Powered Energy Systems Based on Daily Clearness State Evolution

Hourly solar irradiance forecasting based on statistical methods and a stochastic modeling approach for residual error compensation

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