DeepAI
Log In Sign Up

Omnivision forecasting: combining satellite observations with sky images for improved intra-hour solar energy predictions

06/07/2022
by   Quentin Paletta, et al.
0

Integration of intermittent renewable energy sources into electric grids in large proportions is challenging. A well-established approach aimed at addressing this difficulty involves the anticipation of the upcoming energy supply variability to adapt the response of the grid. In solar energy, short-term changes in electricity production caused by occluding clouds can be predicted at different time scales from all-sky cameras (up to 30-min ahead) and satellite observations (up to 6h ahead). In this study, we integrate these two complementary points of view on the cloud cover in a single machine learning framework to improve intra-hour (up to 60-min ahead) irradiance forecasting. Both deterministic and probabilistic predictions are evaluated in different weather conditions (clear-sky, cloudy, overcast) and with different input configurations (sky images, satellite observations and/or past irradiance values). Our results show that the hybrid model benefits predictions in clear-sky conditions and improves longer-term forecasting. This study lays the groundwork for future novel approaches of combining sky images and satellite observations in a single learning framework to advance solar nowcasting.

READ FULL TEXT

page 3

page 4

page 6

page 11

page 13

page 15

page 19

05/22/2020

Convolutional Neural Networks applied to sky images for short-term solar irradiance forecasting

Despite the advances in the field of solar energy, improvements of solar...
04/20/2020

Intra-day solar irradiation forecast using RLS filters and satellite images

Satellite-based solar irradiation forecasting is useful for short-term i...
02/01/2021

Benchmarking of Deep Learning Irradiance Forecasting Models from Sky Images – an in-depth Analysis

A number of industrial applications, such as smart grids, power plant op...
01/15/2019

A deep learning approach to solar-irradiance forecasting in sky-videos

Ahead-of-time forecasting of incident solar-irradiance on a panel is ind...
12/28/2021

A Moment in the Sun: Solar Nowcasting from Multispectral Satellite Data using Self-Supervised Learning

Solar energy is now the cheapest form of electricity in history. Unfortu...