Data and code for: Economic risk certification for fixed day-ahead battery storage schedules under price uncertainty

This record accompanies the manuscript “Economic risk certification for fixed day-ahead battery storage schedules under price uncertainty”. The study develops economic risk certificates for fixed battery schedules by combining state-of-charge-coupled regret caps with economically weighted online calibration. The method accounts for power limits, conversion efficiency, intertemporal energy balance, and terminal inventory. The market studies cover the Australian National Electricity Market, NYISO, Germany-Luxembourg, and Spain. The German-Luxembourg and Spanish studies use historical market data. Retrospective SOC-constraint ablations and algebraic certificate decompositions are distinguished from held-out evaluations. Reported improvements concern reductions in regret-certificate bounds for fixed schedules. The underlying market observations originate from AEMO, NYISO, Bundesnetzagentur | SMARD.de, and OMIE.