arXiv AI By Aliullah, Julian Oelhaf, Edouard Fouch\'e, Jessica Deuschel, Christian Bergler, Andreas Maier, Siming Bayer

Parameter-Efficient Adaptation of Time Series Foundation Models for Electrical Load Forecasting

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The study evaluates how well time‑series foundation models (TSFMs) can be adapted for electrical load forecasting. It compares pretrained inference, full fine‑tuning, and low‑rank adaptation (LoRA) across four load aggregation levels, using MOIRAI 1.0 Large as the main backbone and Chronos‑2 as a secondary model. LoRA achieves a 7.5% average NMAE reduction on MOIRAI while updating only about 1% of the parameters, offering a strong accuracy‑efficiency trade‑off, though benefits vary in out‑of‑distribution scenarios.

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