ResearchResearch paperTraining & Scaling · Large Language Models1 source · Oct 8, 2026

Machine Learning and Time-Series Foundation Models for Day-Ahead Electricity Forecasting in a University Building

We benchmark statistical, machine-learning, recurrent neural-network, and pretrained TimesFM models for a university building.

Key points

  • Day-ahead electricity forecasts can help building operators schedule heating, ventilation, and other services around anticipated demand.
  • Choosing a forecasting model also requires balancing accuracy with its forecast-time inputs, local training, and computational requirements.
  • An exploratory historical evaluation reveals seasonal variation, while a separate weather-source comparison produces only small changes in the selected TimesFM configuration's accuracy.
  • These results support pretrained TimesFM as a strong initial forecasting baseline for this building, with XGBoost as a competitive locally fitted alternative.

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