Alexandre obtained an engineer diploma in physical oceanography in 2007 and a master degree in numerical modelling from Mines Paris – PSL in 2007. He defended his PhD in meteorology in 2011. He’s been working on solar forecasting in various environment for the last 10 years. Boilley Alexandre, Thomas Carrière, Loïc Yezeguelian, Sebastien Pitaval. Enhancing Short-term Solar Irradiance Forecasting using Ground-based Pyranometers and Hemispherical Sky Imagers. Eurosun Conference. Freiburg – Germany. 2026. Thomas Carriere – Alexandre Boilley – Florian Ghionda – Loic Yezeguelian – Sebastien Pitaval. Impact of data acquisition delays on photovoltaic forecasts performance in real-time operational processes. IEEE PVSC conference. New Orleans. 2026 Sébastien Pitaval, Lucien Wald, Florian Ghionda, Alexis Giudicissii, Thomas Carrière, Loïc Yezeguelian, Alexandre Boilley. On the optimal selection of meteorological variables as inputs to machine learning models for solar irradiance forecasting. Icem–international conference energy and meteorology. 2025 Trolliet Mélodie, Walawender Jakub P, Bourlès Bernard, Boilley Alexandre, Trentmann Jörg, Blanc Philippe, Lefèvre Mireille, Wald Lucien. Downwelling surface solar irradiance in the tropical Atlantic Ocean: a comparison of re-analyses and satellite-derived data sets to PIRATA measurements. Ocean Science vol.14 number 5 p.1021-1056. 2018 Bengulescu Marc, Blanc Philippe, Boilley Alexandre, Wald Lucien. Do modelled or satellite-based estimates of surface solar irradiance accurately describe its temporal variability? Advances in Science and Research vol.14 p. 35-48. 2017 Trolliet Mélodie, Lefèvre Mireille, Boilley Alexandre, Wald Lucien. Comparison of several databases of downward solar radiation data at ocean surface with PIRATA measurements. EMS Annual Meeting vol.14. 2017 Boilley Alexandre, Thomas Claire, Marchand Mathilde, Wey Etienne, Blanc Philippe. The solar forecast similarity method: A new method to compute solar radiation forecasts for the next day. Energy Procedia vol. 91 p.1018-1023. 2016 Boilley Alexandre, Wald Lucien. Comparison between meteorological re-analyses from ERA-Interim and MERRA and measurements of daily solar irradiation at surface. Renewable Energy vol.75 p. 135-143. 2015 Boilley Alexandre, Mahfouf Jean-François. Wind shear over the Nice Côte d’Azur airport: case studies. Natural Hazards and Earth System Sciences vol. 13 number 9, p. 2223-2238. 2013 Boilley, Alexandre, Ranchin Thierry, Ghennioui Abdellatif. Preliminary step towards comparing large scale features in surface wind field between ERA-Interim re-analysis and a higher resolution simulation. Advances in Science and Research vol.10 p. 113-117. 201 Boilley Alexandre, Mahfouf Jean-François. Assimilation of low-level wind in a high-resolution mesoscale model using the back and forth nudging algorithm. Tellus A: Dynamic Meteorology and Oceanography vol.64 number 1, p. 18697. 2012 Boilley Alexandre. Modélisation de cisaillements de vent et assimilation de données dans la couche limite atmosphérique. Thèse de l’université de Toulouse. 2011

Alexandre Boilley

Q: The role

Alexandre is an expert in geoscience data. He is a data scientist. His role is to determine impactful datasets to improve solar forecast accuracy. He sets up pipeline to integrate NWPs or Satellites data into NEXT forecast process i.e. select datasets and variables of interest, integrate it into the acquisition process of NEXT and validate their impact.

Alexandre Boilley

Lead Meteorologist

About Alexandre

Alexandre is passionate about meteorology since its young age. He realised a first internship at Meteo France at the age of 13. Since then he specialized in oceanography and meteorology with a strong numerical pattern. After a PhD in numerical modelling of fine scale wind hazards at Meteo France research center (CNRM – Toulouse, France) he continues with a PostDoctoral project at Mines Paris – PSL on wind resources assessment. In the Observation Impact Energy research center he started working on solar forecasting. He’s been working on this subject for 10 years now focusing on data science.

The role

Alexandre is an expert in geoscience data. He is a data scientist. His role is to determine impactful datasets to improve solar forecast accuracy. He sets up pipeline to integrate NWPs or Satellites data into NEXT forecast process i.e. select datasets and variables of interest, integrate it into the acquisition process of NEXT and validate their impact.

The experience

Alexandre obtained an engineer diploma in physical oceanography in 2007 and a master degree in numerical modelling from Mines Paris – PSL in 2007. He defended his PhD in meteorology in 2011. He’s been working on solar forecasting in various environment for the last 10 years.

Boilley Alexandre, Thomas Carrière, Loïc Yezeguelian, Sebastien Pitaval. Enhancing Short-term Solar Irradiance Forecasting using Ground-based Pyranometers and Hemispherical Sky Imagers. Eurosun Conference. Freiburg – Germany. 2026.
Thomas Carriere – Alexandre Boilley – Florian Ghionda – Loic Yezeguelian – Sebastien Pitaval. Impact of data acquisition delays on photovoltaic forecasts performance in real-time operational processes. IEEE PVSC conference. New Orleans. 2026
Sébastien Pitaval, Lucien Wald, Florian Ghionda, Alexis Giudicissii, Thomas Carrière, Loïc Yezeguelian, Alexandre Boilley. On the optimal selection of meteorological variables as inputs to machine learning models for solar irradiance forecasting. Icem–international conference energy and meteorology. 2025
Trolliet Mélodie, Walawender Jakub P, Bourlès Bernard, Boilley Alexandre, Trentmann Jörg, Blanc Philippe, Lefèvre Mireille, Wald Lucien. Downwelling surface solar irradiance in the tropical Atlantic Ocean: a comparison of re-analyses and satellite-derived data sets to PIRATA measurements. Ocean Science vol.14 number 5 p.1021-1056. 2018
Bengulescu Marc, Blanc Philippe, Boilley Alexandre, Wald Lucien. Do modelled or satellite-based estimates of surface solar irradiance accurately describe its temporal variability? Advances in Science and Research vol.14 p. 35-48. 2017
Trolliet Mélodie, Lefèvre Mireille, Boilley Alexandre, Wald Lucien. Comparison of several databases of downward solar radiation data at ocean surface with PIRATA measurements. EMS Annual Meeting vol.14. 2017
Boilley Alexandre, Thomas Claire, Marchand Mathilde, Wey Etienne, Blanc Philippe. The solar forecast similarity method: A new method to compute solar radiation forecasts for the next day. Energy Procedia vol. 91 p.1018-1023. 2016
Boilley Alexandre, Wald Lucien. Comparison between meteorological re-analyses from ERA-Interim and MERRA and measurements of daily solar irradiation at surface. Renewable Energy vol.75 p. 135-143. 2015
Boilley Alexandre, Mahfouf Jean-François. Wind shear over the Nice Côte d’Azur airport: case studies. Natural Hazards and Earth System Sciences vol. 13 number 9, p. 2223-2238. 2013
Boilley, Alexandre, Ranchin Thierry, Ghennioui Abdellatif. Preliminary step towards comparing large scale features in surface wind field between ERA-Interim re-analysis and a higher resolution simulation. Advances in Science and Research vol.10 p. 113-117. 201
Boilley Alexandre, Mahfouf Jean-François. Assimilation of low-level wind in a high-resolution mesoscale model using the back and forth nudging algorithm. Tellus A: Dynamic Meteorology and Oceanography vol.64 number 1, p. 18697. 2012
Boilley Alexandre. Modélisation de cisaillements de vent et assimilation de données dans la couche limite atmosphérique. Thèse de l’université de Toulouse. 2011

Articles by Alexandre

Numerical weather prediction models (NWP): The 131-million data point engine behind your weather forecast

Understanding solar energy potential across all time horizons

Our authors

CalibSun was created in 2023 by Nicolas Thévenin and Sébastien Pitaval, the founders of Solaïs, a company that has been an expert in photovoltaics for more than 18 years and a world leader in glare studies.