This dataset accompanies the thesis “The Impact of the 2022 Energy Crisis on UK Electricity System Prices: A Commodity Market Analysis.” It provides a regression-ready panel of daily observations for the UK electricity system price and its key explanatory variables over the 2021–2023 period. Variables include Brent crude oil prices, Dutch TTF natural gas prices, GBP/USD exchange rates, Geopolitical Risk Index (GPR/GRI), Economic Policy Uncertainty Index (EPU) and FTSE All-Share Index (FTAS). The dataset has been fully cleaned, standardized, and formatted to support multiple linear regression and robustness checks. It is designed to enable replication of the thesis results and further exploration of commodity–electricity linkages during the 2022 energy crisis. By making this dataset openly available, the research supports transparency, reproducibility, and innovation at the intersection of energy economics and financial technology (Fintech), where advanced analytics and market modeling are increasingly used for decision-making.