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Prospect
Quick estimate of PV site's solar potential
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Evaluate
Data, design & PV simulation in one solution
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Monitor
Real-time PV output assessment
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Forecast
Solar power output forecast for up to 14 days
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New generation Solargis Evaluate: data, PV design & simulation, analysis, and reports in one cloud-based solution. Discover more ->

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Scientific paper
GISPLIT: High-performance global solar irradiance component-separation model dynamically constrained by 1-min sky conditions
José A. Ruiz-Arias, Christian A. Gueymard, 2024, Solar Energy, vol. 269, p. 112363, Feb. 2024, doi: 10.1016/j.solener.2024.112363.
Scientific paper
SPARTA: Solar parameterization for the radiative transfer of the cloudless atmosphere
José A. Ruiz-Arias, 2023, Renewable and Sustainable Energy Reviews, vol. 188, p. 113833, Dec. 2023, doi: 10.1016/j.rser.2023.113833.
Scientific paper
CAELUS: Classification of sky conditions from 1-min time series of global solar irradiance using variability indices and dynamic thresholds
José A. Ruiz-Arias, Christian A. Gueymard, 2023, Solar Energy, vol. 263, p. 111895, Oct. 2023, doi: 10.1016/j.solener.2023.111895.
Scientific paper
Impact of Time Resolution of Solar and Meteorological Data on Clipping Losses and Energy Yield Simulation
Jozef Rusnak, Branislav Schnierer, Marcel Suri, Martin Opatovsky, Giridaran Srinivasan, 2023, Proceedings of the 40th European Photovoltaic Solar Energy Conference and Exhibition in Lisbon, Portugal, Lisbon, Portugal: WIP-Munich, Sep. 2023, pp. 020493-001-020493–010. doi: 10.4229/EUPVSEC2023/5CO.6.2.
Scientific paper
Mean-preserving interpolation with splines for solar radiation modeling
José A. Ruiz-Arias, 2022, Solar Energy, vol. 248, pp. 121–127, Dec. 2022, doi: 10.1016/j.solener.2022.10.038.
Scientific paper
State-of-Play and Emerging Challenges in Photovoltaic Energy Yield Simulations: A Multi-Case Multi-Model Benchmarking Study
Ioannis (John) A. Tsanakas, Ismaël Lokhat, Arnaud Jay, Clément Gregoire, Branislav Schnierer, Jozef Rusnak, Lukas Dvonc, Joséphine Berthelot, Chloé Monet, Kévin Garcia, Iván Lombardero, Jonathan Leloux, Babacar Sarr, Alfons Armbruster, Jefferson Bor, 2022, Solar RRL, vol. 7, no. 8, p. 2200582, 2023, doi: 10.1002/solr.202200582.
Scientific paper
Effectiveness of Short Ground-Based Measurement Campaigns of Surface Albedo
Vicente Lara-Fanego, Christian A. Gueymard, Tomas Cebecauer, Marcel Suri, 2022, Proceedings of the 8th World Conference on Photovoltaic Energy Conversion in Milan, Italy, Milan, Italy, 2022, pp. 999–1004. doi: 10.4229/WCPEC-82022-4BO.16.4.
Scientific paper
Extensive Evaluation and Uncertainty Estimation of Albedo Data Sources
Vicente Lara-Fanego; Christian A. Gueymard; Jose A. Ruiz-Arias; Tomas Cebecauer; Juraj Betak, 2022, 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), Jun. 2022, pp. 0945–0947. doi: 10.1109/PVSC48317.2022.9938504.
Scientific paper
Dissecting surface clear sky irradiance bias in numerical weather prediction: Application and corrections to the New Goddard shortwave scheme
J. A. Ruiz-Arias, X. Zhong, J. Kleissl, 2016, Accepted for publication in Solar Energy
Scientific paper
Preliminary survey on site-adaptation techniques for satellite-derived and reanalysis solar radiation datasets
J. A. Ruiz-Arias, M. Šúri, T. Cebecauer, J. Polo, S. Wilbert, R. Meyer, C. Gueymard, L. Martín, T. Mieslinger, P. Blanc, I. Grant, J. Bolan, P. Ineichen, J. Remund, R. Escobar, A. Troccoli, M. Sengupta, K. P. Nielsen, D. Renne, N. Geuder, 2016, Solar Energy, Volume 132, July 2016, Pages 25–37
Scientific paper
Macroscopic cloud properties in the WRF NWP model, An assessment using sky camera and ceilometer data
J. Tovar-Pescador, D. Pozo-Vázquez, C. Arbizu-Barrena, J. A. Ruiz-Arias, 2015, Journal of Geophyscal Research: Atmospheres, Vol. 120, pp. 1 - 16
Scientific paper
Solar Resource for High Concentrator Photovoltaic Applications
J. A. Ruiz-Arias, C. A. Gueymard, 2015, In: High Concentrator Photovoltaics, Fundamentals Engineering and Power Plants, Pérez-Higueras P., Fernández E.F. (Eds) Green Energy and Technology Series Springer. ISBN 978-3-319-15038-3
Scientific paper
Levelised cost of electricity in high concentrated photovoltaic grid connected systems
E. F. Fernández, D. López-Talavera, J. A. Pérez-Higueras Ruiz-Arias, 2015, Spatial analysis of Spain, Applied Energy, Vol. 151, pp. 49 - 59
Scientific paper
Model for estimating the energy yield of a high-concentrator photovoltaic system
J. A. Ruiz-Arias, E. F. Fernández, P. Pérez-Higueras, F. Almonacid, J. I. Fernández, I. Luque-Heredia, 2015, Energy, Vol. 87, pp. 77 – 85
Scientific paper
Do spaceborne aerosol observations limit the accuracy of modeled surface solar irradiance
J. A. Ruiz-Arias, C. A. Gueymard, D. Pozo-Vázquez, F. J. Santos-Alamillos, 2015, Geophysical Research Letters, Vol. 42.
Scientific paper
Influence of the land-use misrepresentation on the accuracy of WRF wind estimates: Evaluation of GLCC and CORINE land-use maps in Southern Spain
J. A. Ruiz-Arias, J. Tovar-Pescador, D. Pozo-Vázquez, F. J. Santos-Alamillos, 2015, Atmospheric Research, Vol. 157, pp. 17 – 28
Scientific paper
Integration of ground measurements to model-derived data
J. A. Ruiz-Arias, J. Polo, S. Wilbert, R. Meyer, C. A. Gueymard, 2015, Task-46 Solar Resource Assessment and Forecasting of the International Energy Agency Solar Heating and Cooling Programme
Scientific paper
Combining wind farms with concentrating solar plants to provide stable renewable power
J. A. Ruiz-Arias, J. Tovar-Pescador, D. Pozo-Vázquez, F. J. Santos-Alamillos, L. Von Bremen, 2015, Renewable Energy, Vol. 76, pp 539 - 550
Scientific paper
Optimal combination of gridded-modeled and ground-observed solar radiation data for regional solar resource assessment
J. A. Ruiz-Arias, C. A. Gueymard, S. Quesada-Ruiz, E. F. Fernández, 2015, Solar Energy, Vol. 112, pp 411 - 424
Scientific paper
WRF-Solar: An augmented NWP model for solar power prediction. Model description and clear-sky assessment
J. A. Ruiz-Arias, C. A. Gueymard, P. A. Jimenez, J. P. Hacker, J. Dudhia, S. E. Haupt, G. Thompson, T. Eidhammer, A. Deng, 2015, Bulletin of the American Meteorological Society in press e-View