Solar irradiance forecasting at one-minute intervals for different sky conditions using sky camera images

J Alonso-Montesinos, FJ Batlles, C Portillo - Energy Conversion and …, 2015 - Elsevier
In the search for new techniques to predict atmospheric features that might be useful to solar
power plant operators, we have carried out solar irradiance forecasting using emerging sky …

Forecasting and nowcasting of DNI for concentrating solar thermal systems

L Ramírez, JM Vindel - Advances in concentrating solar thermal research …, 2017 - Elsevier
This chapter reviews the state of the art of forecasting and nowcasting of direct normal
irradiance (DNI) for concentrating solar thermal (CST) systems. After a review of the main …

[HTML][HTML] Photovoltaic power electricity generation nowcasting combining sky camera images and learning supervised algorithms in the Southern Spain

M Trigo-González, M Cortés-Carmona, A Marzo… - Renewable Energy, 2023 - Elsevier
The alternation between cloudy and clear skies alters the photovoltaic production. This
makes it necessary to anticipate these disturbances hours in advance for the correct …

The effect of clouds on surface solar irradiance, based on data from an all-sky imaging system

P Tzoumanikas, E Nikitidou, AF Bais, A Kazantzidis - Renewable energy, 2016 - Elsevier
An all-sky imaging system is deployed to estimate the effect of clouds on incident solar
irradiance, for a 2-year period over the city of Thessaloniki, Greece. The minutely cloud …

Evaluating the spatio-temporal performance of sky-imager-based solar irradiance analysis and forecasts

T Schmidt, J Kalisch, E Lorenz… - … chemistry and physics, 2016 - acp.copernicus.org
Clouds are the dominant source of small-scale variability in surface solar radiation and
uncertainty in its prediction. However, the increasing share of solar energy in the worldwide …

hackAIR: Towards raising awareness about air quality in Europe by develo** a collective online platform

E Kosmidis, P Syropoulou, S Tekes… - … International Journal of …, 2018 - mdpi.com
Although air pollution is one of the most significant environmental factors posing a threat to
human health worldwide, air quality data are scarce or not easily accessible in most …

[PDF][PDF] Measuring high-resolution sky luminance distributions with a CCD camera

K Tohsing, M Schrempf, S Riechelmann, H Schilke… - Applied …, 2013 - researchgate.net
Solar radiation is the Earth's main source of energy. Radiation of wavelengths between
approximately 380 and 780 nm is defined as visible radiation [1]. This part of the solar …

Calibration of an all-sky camera for obtaining sky radiance at three wavelengths

R Román, M Antón, A Cazorla… - Atmospheric …, 2012 - amt.copernicus.org
This paper proposes a method to obtain spectral sky radiances, at three wavelengths (464,
534 and 626 nm), from hemispherical sky images. Images are registered with the All-Sky …

Distributed sky imaging radiometry and tomography

A Aides, A Levis, V Holodovsky… - 2020 IEEE …, 2020 - ieeexplore.ieee.org
The composition of the atmosphere is significant to our ecosystem. Accordingly, there is a
need to sense distributions of atmospheric scatterers such as aerosols and cloud droplets …

Evaluation of enhancement events of total solar irradiance during cloudy conditions at Granada (Southeastern Spain)

AA Piedehierro, M Antón, A Cazorla… - Atmospheric …, 2014 - Elsevier
Among the factors affecting the solar radiation that reaches the ground, clouds play a key
role in its short-term variability causing events ranging from almost total reduction to …