The increase in the tank temperature at the end of the heating period was beneficial for shortening the duration of the heat storage period for the following year. The feasibility of utilizing solar thermal energy and cascaded phase change heat storage for cross-seasonal heating has been demonstrated in this study.
Thus, the solar-driven cascaded phase change heat storage system for cross-seasonal heating holds significant application value in highland areas. The system utilizes solar energy as the primary energy source, which is abundant in the plateau region, effectively reducing reliance on traditional fossil energy sources and mitigating carbon emissions.
Accurate forecasting of solar power generation is essential for the stable operation of power grids and the effective management of power markets. Through accurate forecasting, the scheduling and allocation of power resources can be optimized to ensure a balance between supply and demand, and to avoid shortages or excesses in power supply.
As heat storage volume increases, hot water preparation costs and heat loss per unit volume decrease. Thus, developing large-scale cross-seasonal thermal storage systems is an effective solution to improve the thermal efficiency and solar energy utilization of solar heating systems.
The 2050 RE scenario was determined via the Pareto optimization of different wind and solar power combinations with the minimum total annual cost and CO 2 emissions as the optimization objectives. The optimal penetration levels were found to be 40 % and 30 % for wind and solar power generation penetration, respectively.
In addition to demonstrating the feasibility of applying cascaded phase change technology in cross-seasonal heat storage heating, this study reveals the lifecycle sustainability due to the shortened heat storage period. The configuration, parameters, and simulation results provide a reference basis for system application and design.
Trade-off Analysis for Optimal Design of Trigeneration Energy …
3 · Global energy consumption continues to rise significantly, driven by population growth and industrialization, resulting in increased greenhouse gas emissions and intensifying the …
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Evaluating wind and solar complementarity in China: Considering …
Wind and solar: Ren et al. (2022) [13] Cross-correlation function: Hydro and wind : Silva et al. [15] Assessments based on fluctuations: Aggregate power output fluctuations: Wind and solar: Liu et al. (2013) [9]and Ren et al. (2023) [10] Ramp rate assessment: Hydro, solar and wind: Han et al. (2019) [16] Variation-based complementarity metrics: Wind and solar: …
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Regression analysis and prediction of monthly wind and solar …
The accurate prediction of monthly electricity generation from wind and solar power is essential for clean energy systems and power grids. This study aims to explore a …
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Thermal performance study of a solar-coupled phase changes …
Solar power generation has become the main way of renewable energy generation because of its abundant reserves, low cost and clean utilization [1, 2].Among the technologies related to solar power generation, the reliability and low cost of the organic Rankine cycle (ORC) are widely recognized [3, 4].The more efficient conventional steam Rankine cycle …
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Tandem daytime radiative cooling and solar power generation
3 · Considering that radiative cooling requires efficient sunlight reflection, the integration of radiative cooling with solar cells poses a considerable challenge. To tackle this issue, Jia et al. …
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When the wind drops and the sun goes down: how can Southeast …
Grid upgrades won''t come cheap. The International Energy Agency estimates that the region will require US$1.2 trillion in investments through to 2040 to modernise and expand its electricity grids, and governments will need to take policy action to unlock such capital. "Private investment is essential to improve grid infrastructure in most Southeast Asian …
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Socio-economic impacts of solar energy technologies for …
This has played a positive role in the development of solar power generation technology. In ... studied the underground energy storage and energy CSP release characteristics of cross-season energy storage ground-source heat pumps. (Liu et al., 2016) carried out analysis and economic analysis of the CSP system using the trough solar heat transfer fluid technology …
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Comparative Performance Assessment of 300 MW Solar‐Coal …
Performance of the 300 MW SCHPG system in the nominal and part-load condition is analyzed under three different integration mechanisms. Numerical simulation of …
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Performance investigation of a solar-driven cascaded phase …
Utilizing phase change materials with high energy density and stable heat output effectively improves energy storage efficiency. This study integrates cascaded phase change with a...
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Seasonal thermal energy storage employing solar heat: A case …
Seasonal thermal energy storage (STES) harvests and stores sustainable heat sources, such as solar thermal energy and waste heat, in summer and uses them in winter for …
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Prediction of power generation and maintenance using …
This article focuses on the study of PV power generation forecasting based on SCADA data. A method for the PV power generation prediction is developed. It includes data collection and processing, radar chart generation using the selected parameter signals, selection and training of the deep learning network models, and model application for PV ...
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Performance investigation of a solar-driven cascaded phase …
This study aims to utilize solar energy and phase change thermal storage technology to achieve low carbon cross-seasonal heating. The system is modelled using the open source EnergyPlus software ...
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Seasonal thermal energy storage employing solar heat: A case …
Seasonal thermal energy storage (STES) harvests and stores sustainable heat sources, such as solar thermal energy and waste heat, in summer and uses them in winter for heating purposes, facilitating the replacement of fossil fuel-based heat supply and coordinating the seasonal mismatch between heat supply and demand [7].
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Tandem daytime radiative cooling and solar power generation
3 · Considering that radiative cooling requires efficient sunlight reflection, the integration of radiative cooling with solar cells poses a considerable challenge. To tackle this issue, Jia et al. design a transmission-type daytime radiative cooling system that successfully combines solar cell and radiative cooling technologies and significantly enhances energy capture efficiency.
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Trade-off Analysis for Optimal Design of Trigeneration Energy …
3 · Global energy consumption continues to rise significantly, driven by population growth and industrialization, resulting in increased greenhouse gas emissions and intensifying the urgency for sustainable energy solutions [1] bined cooling, heat, and power (CCHP) systems, also known as trigeneration systems, are essential for the optimal integration of renewable …
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Short-term Solar Power Forecasting: An Accuracy ...
In this study, we perform short-term power generation prediction for the fluctuation of seasonal new energy power generation, and firstly, we explore the shortcomings of the traditional K-means clustering method in the prediction of solar power generation. Then, in order to improve the prediction accuracy and model robustness, we systematically evaluate a variety of advanced …
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Clean water harvesting and power generation by solar …
Based on the shortcomings of current solar interface evaporation material, a Janus-type germanium@k-carrageenan (Ge@CA) evaporator of loading solar-absorbing Ge on the surface of CA hydrogel is proposed towards clean water harvesting and power generation. Due to its small energy band gap, Germanium is beneficial for absorbing solar energy over ...
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Prediction of power generation and maintenance using …
This article focuses on the study of PV power generation forecasting based on SCADA data. A method for the PV power generation prediction is developed. It includes data …
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model to determine soiling, shading and thermal losses from PV …
This paper aims to provide a model to determine losses due to soiling, shading and temperature using quantities like irradiance, cell temperature, DC power and current, …
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Regression analysis and prediction of monthly wind and solar power ...
The accurate prediction of monthly electricity generation from wind and solar power is essential for clean energy systems and power grids. This study aims to explore a novel combined forecasting model to offer theoretical references and data support for analyzing seasonal peaking and supply/demand balance in the power system. Multiple ...
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Review Solar thermal energy technologies and its applications for ...
Among renewable energy resources, solar energy has maximum potential and produces clean energy which does not harm the environment during its operation (Aboelwafa et al., 2018). Solar radiation can be converted into heat/electrical energy by using various solar conversion technologies. Solar energy conversion technologies may be broadly classified into …
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Droughts in Wind and Solar Power: Assessing Climate Model …
1 Introduction. Wind and solar power are the key drivers of electricity decarbonization. While the global energy infrastructure is still in the early stage of a transition away from the fossil fuels toward the energy sources with near-zero greenhouse gas emissions, projections and proposals indicate electricity supply relying on wind and solar power will …
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Short-term Solar Power Forecasting: An Accuracy ...
In this study, we perform short-term power generation prediction for the fluctuation of seasonal new energy power generation, and firstly, we explore the shortcomings of the traditional K-means clustering method in the prediction of solar power generation. Then, in order to improve the …
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model to determine soiling, shading and thermal losses from PV …
This paper aims to provide a model to determine losses due to soiling, shading and temperature using quantities like irradiance, cell temperature, DC power and current, which are readily available in PV yield data captured by the remote monitoring system, without involving any additional sensors or equipment.
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Solar Energy Resource and Power Generation in Morocco: …
The world''s attention is currently focused on the energy transition to sustainable energy. The drive to reduce greenhouse gas emissions in order to limit global warming, energy security, and the generalization of access to energy have contributed to the adoption of the Moroccan Energy Strategy, with a strong focus on renewable energy (RE). …
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Comparative Performance Assessment of 300 MW Solar‐Coal Hybrid Power ...
Performance of the 300 MW SCHPG system in the nominal and part-load condition is analyzed under three different integration mechanisms. Numerical simulation of 300 MW SCHPG system is investigated under four different cases using a thermal balance approach. Operation modes of fuel-saving (FS) and power-boosting (PB) are considered for each case.
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Air Pollution and Solar Photovoltaic Power Generation: Evidence …
However, despite its promise, solar power generation faces significant variability due to atmospheric and meteorological conditions, potentially impacting its cost-effectiveness and reliability. Air pollution, in particular, poses a critical challenge to solar power deployment. It diminishes both solar radiation reaching the Earth''s surface and ...
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Performance investigation of a solar-driven cascaded phase …
Utilizing phase change materials with high energy density and stable heat output effectively improves energy storage efficiency. This study integrates cascaded phase change …
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Droughts in Wind and Solar Power: Assessing Climate …
1 Introduction. Wind and solar power are the key drivers of electricity decarbonization. While the global energy infrastructure is still in the early stage of a transition away from the fossil fuels toward the energy …
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Forecasting solar energy generation in the mediterranean region …
In winter, solar energy generation is generally lower than in other seasons due to decreased solar radiation. However, the growth in solar energy generation during this season reflects the ongoing efforts of countries to improve efficiency and optimize the use of renewable energy sources. Factors such as technological advancements, government ...
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