Data for: Dynamic modelling of a novel hybrid compressed air–hydropneumatic energy storage system with TES-assisted residual air recovery

These machine-readable supplementary data support the manuscript “Dynamic modelling of a novel hybrid compressed air–hydropneumatic energy storage system with TES-assisted residual air recovery”. The Microsoft Excel workbook contains 40 worksheets (00–39) covering the design basis; selected converged Cycle 12; electrical and thermal energy accounting; repeated Cycles 2–12 and convergence gates; event-resolved hydraulic discharge; hydrostatic pump-back; TES/PCU readiness and inventory closure; compressor–HE1 and HE2 engineering data; HP thermal assistance and air–water heat-transfer bounds; numerical and thermophysical-property verification; normalized external-reference trajectories for Figure 5; vessel and practical-feasibility screening; literature context; 30 fully coupled sensitivity cases (27 converged/reportable cases and three feasibility boundaries); a 40-case local pump-back sweep; figure-source mapping; omitted-auxiliary electrical bounds; PCU robustness; time-step refinement; independent TES–HE2–expander pathway reconstruction; external turbine-performance context; separator-model scope; and modular vessel-scale context. Full-precision values are retained. Cycle 12 has a total electrical input of 4.453327674947855 MWh, net electrical output of 2.3370253672540824 MWh, and net round-trip efficiency of 52.47818121269164%. The workbook contains no macros or external data connections. It is intended for numerical audit, reconstruction of reported tables and figures, and reuse subject to the stated scope and provenance notes.