Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: unknown, P. 106091 - 106091
Published: Dec. 1, 2024
Language: Английский
Atmospheric chemistry and physics, Journal Year: 2025, Volume and Issue: 25(2), P. 997 - 1021
Published: Jan. 27, 2025
Abstract. The anticipated increase in solar energy production West Africa requires high-quality irradiance estimates, which are affected by meteorological conditions and particular the presence of desert dust aerosols. This study examines impact incorporating into surface temperature estimations. research focuses on a case event March 2021, is characteristic dry season Africa. Significant aerosol emissions at Bodélé Depression associated with Harmattan flow that transports plume westwards. Simulations this were conducted using Weather Research Forecasting (WRF) Model alone, as well coupling it CHIMERE chemistry transport model, three different datasets for initial boundary (CAMS, GOCART, MERRA-2). Results show considering reduces estimation errors global horizontal (GHI) about 75 %. caused an average 18 % reduction during event. Additionally, simulations indicated positive bias optical depth (AOD) PM10 concentrations. choice dataset minimally influenced GHI, temperature, AOD whereas concentrations size distribution significantly affected. underscores importance aerosols forecasting better accuracy.
Language: Английский
Citations
2
Solar Energy, Journal Year: 2024, Volume and Issue: 271, P. 112413 - 112413
Published: March 1, 2024
Accurate global horizontal irradiance (GHI) forecasting is critical for integrating solar energy into the power grid and operating plants. The Weather Research Forecasting model with its radiation extension (WRF-Solar) has been used to forecast in different regions around world. However, application of WRF-Solar prediction GHI West Africa, particularly Ghana, not yet investigated. aim this study evaluate performance predicting focusing on three automatic weather stations (Akwatia, Kumasi Kologo) year 2021. We two one-way nested domains (D1 = 15 km D2 3 km) investigate ability fully coupled up 72-hour ahead under atmospheric conditions. initial lateral boundary conditions were taken from ECMWF high-resolution operational forecasts. Our findings reveal that performs better clear skies than cloudy skies. Under skies, Kologo performed best GHI, a first day nRMSE 9.62 %. at all sites had significant uncertainties. Additionally, able reproduce observed diurnal cycle high AOD most selected days. This enhances understanding model's capabilities limitations Ghana. provide valuable information stakeholders involved generation integration towards optimized management region.
Language: Английский
Citations
7
Journal of Geophysical Research Atmospheres, Journal Year: 2024, Volume and Issue: 129(6)
Published: March 22, 2024
Abstract Renewable energy is recognized in Africa as a means for climate change mitigation, but also to provide access electricity sub‐Saharan Africa, where three‐quarters of the global population without resides. Reliable and highly resolved renewable potential (REP) information indispensable support power plants expansion. Existing atmospheric data sets over that are used REP estimates often characterized by gaps, or coarse resolution. With aim overcome these challenges, ICOsahedral Nonhydrostatic (ICON) Numerical Weather Prediction (ICON‐NWP) model its Limited Area Mode (ICON‐LAM) implemented run southern hindcast dynamical downscaling setup at convection‐permitting 3.3 km horizontal The simulation time span covers contrasting solar wind weather years from 2017 2019. To assess suitability novel simulations estimates, simulated hourly 10 m speed (sfcWind) surface irradiance (rsds) extensively evaluated against large compilation situ observations, satellite, composite products. ICON‐LAM reproduces spatial patterns, temporal evolution, variability, absolute values sfcWind sufficiently well, albeit with slight overestimation mean bias (mean error (ME)) 1.12 s −1 land. Likewise rsds an ME 50 W −2 well resembles observations. This new ICON product will be basis ensuing compared existing lower resolution sets.
Language: Английский
Citations
4
Remote Sensing, Journal Year: 2025, Volume and Issue: 17(6), P. 998 - 998
Published: March 12, 2025
Accurate solar radiation data are crucial for energy applications, yet ground-based measurements limited in many regions. Satellite-derived and reanalysis products offer an alternative, but their accuracy varies across spatial temporal scales. This study evaluated the performance of four widely used GHI products—CAMS, SARAH-3, ERA5 MERRA-2—against ground at hourly, daily (summed from hourly) monthly (averaged daily) timescales. The analysis also examined how aggregation influenced error characteristics using correlation coefficients, rMBD, rRMSD combined index (CPI). At hourly scale under clear-sky conditions, satellite outperformed products, with r≈1 R2≈0.9 CPI ranging 0.1%, 11.4% 11.8% to −14.7%, 33.3% 75.1% CAMS; 0.2%, 10.9% 13.5%, 22.4% 120.7% SARAH-3; −0.2%, 21.6% 23.8% 21.5%, 40.9% 128.8% MERRA-2; 0.8%, 14.6% 16.3% 22%, 48.2% 88.3% ERA5. Under cloudy all overestimated GHI, rMBD reaching up 39.7% (SARAH-3), 35.9% (CAMS), 22.9% (MERRA-2) 28% (ERA5), while exceeded 40% all. Overcast conditions yielded poorest performance, 45.8% 124.6% exceeding 800% some cases. From datasets, reduced errors by 5.5% 12.4%, respectively, satellite-based deviations slightly increased 3.1% dataset. all-sky showed reductions 23%. These results highlight significant challenges estimating due knowledge aerosol cloud dynamics region. They emphasize need improved parameterization models dedicated measurement campaigns enhance product West Africa.
Language: Английский
Citations
0
Renewable Energy, Journal Year: 2025, Volume and Issue: unknown, P. 123423 - 123423
Published: May 1, 2025
Language: Английский
Citations
0
International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 138, P. 681 - 693
Published: May 21, 2025
Language: Английский
Citations
0
Renewable Energy, Journal Year: 2024, Volume and Issue: 224, P. 120101 - 120101
Published: Feb. 10, 2024
Language: Английский
Citations
3
Energies, Journal Year: 2024, Volume and Issue: 17(20), P. 5063 - 5063
Published: Oct. 11, 2024
Renewable energy sources are increasing globally, mainly due to efforts achieve net zero emissions. In Brazil, solar photovoltaic electricity generation has grown substantially in recent years, with the installed capacity rising from 2455 MW 2018 47,033 August 2024. However, intermittency of increases challenges forecasting generation, making it more difficult for decision-makers plan flexible and efficient distribution systems. addition, forecast power support grid expansion, is essential have adequate data sources, but measured climate Brazil limited does not cover entire country. To address this problem, study evaluates global horizontal irradiance (GHI) four reanalysis datasets—MERRA-2, ERA5, ERA5-Land, CFSv2—at 35 locations across Brazil. The GHI time series was compared ground-based measurements assess its ability represent hourly Results indicate that MERRA-2 performed best 90% studied, considering root mean squared error. These findings will help advance by offering an alternative regions observational through use datasets.
Language: Английский
Citations
3
Earth system science data, Journal Year: 2024, Volume and Issue: 16(11), P. 5243 - 5265
Published: Nov. 14, 2024
Abstract. The amount of energy reaching Earth's surface from the Sun is a quantity high importance for climate system and renewable applications. SARAH-3 (SurfAce Radiation DAtaset Heliosat, https://doi.org/10.5676/EUM_SAF_CM/SARAH/V003, Pfeifroth et al., 2023) new version satellite-based data record solar radiation parameters, generated distributed by European Organisation Meteorological Satellites (EUMETSAT) Climate Monitoring Satellite Application Facility (CM SAF). provides 1983 onwards, i.e. more than 4 decades data, has spatial resolution 0.05° × 0.05°, temporal 30 min daily monthly means region covered Meteosat field view (65° W to 65° E S N). consists seven parameters: irradiance, direct normal sunshine duration, daylight, photosynthetically active effective cloud albedo. between 2020 have been with stable input (i.e. satellite auxiliary data) ensure stability; these are temporally extended operational near-real-time processing – so-called Interim Data Record. suitable various applications, monitoring energy. validation shows good accuracy (deviations ∼ 5 m−2 reference measurements irradiance), stability further improvements over its predecessor SARAH-2.1. One reason this improved quality treatment snow-covered surfaces in algorithm, reducing misclassification snow as clouds. reveals an increase irradiance (∼ +3 per decade) during recent Europe, line observations.
Language: Английский
Citations
2
Environmental Research Infrastructure and Sustainability, Journal Year: 2024, Volume and Issue: 4(2), P. 025004 - 025004
Published: April 25, 2024
Abstract The research aims to identify which healthcare facilities (HCFs) in Ghana are suitable for electrification using photovoltaic mini-grids increase their energy self-sufficiency and reliability of services provided. Additionally, the study categorises HCFs two groups: those with without or poor access electricity supply, settlements within catchment area, determine demand identified HCF sites surrounding communities. assesses most mini-grid system setup electrify impact including communities into modelling. Finally, accumulated solar potential all sites. findings highlight importance integrated planning between health sectors ensure high-quality services. Solar as a promising solution electrifying improving self-sufficiency. However, it is recommended avoid transferring different types due unique characteristics. also emphasizes balancing flow stabilizing through combination communities’ demand. It crucial assess carefully based on context-specific characteristics, such type number households considered. Overall, provides valuable insights careful assessments.
Language: Английский
Citations
1