Hourly Polish Electricity Day-Ahead Market Dataset: Prices, Grid Load, Renewable Generation, and Weather (July 2024 – September 2025)

This dataset provides hourly observations for the Polish day-ahead electricity market from July 2024 to September 2025, combining average market price and traded volume (TGE) with grid demand, solar and wind generation, and residual load (PSE), alongside national population-weighted temperature and solar radiation (Open-Meteo). It is the exact dataset used to train and evaluate the electricity price-forecasting model reported in the accompanying paper, provided as a single CSV with one row per hour.