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Journal Articles International Journal of Forecasting Year : 2018

Ensemble forecast of photovoltaic power with online CRPS learning

Abstract

We provide probabilistic forecasts of photovoltaic (PV) production, for several PV plants located in France up to 6 days of lead time, with a 30-min timestep. First, we derive multiple forecasts from numerical weather predictions (ECMWF and Météo France), including ensemble forecasts. Second, our parameter-free online learning technique generates a weighted combination of the production forecasts for each PV plant. The weights are computed sequentially before each forecast using only past information. Our strategy is to minimize the Continuous Ranked Probability Score (CRPS). We show that our technique provides forecast improvements for both deterministic and probabilistic evaluation tools.

Dates and versions

hal-01909827 , version 1 (31-10-2018)
hal-01909827 , version 2 (18-04-2019)

Identifiers

Cite

Jean Thorey, Christophe Chaussin, Vivien Mallet. Ensemble forecast of photovoltaic power with online CRPS learning. International Journal of Forecasting, 2018, 34 (4), ⟨10.1016/j.ijforecast.2018.05.007⟩. ⟨hal-01909827v1⟩
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