Hydro-Pneumatic Frequency Regulator (HPFR): Evidence Bundle and Monte Carlo Evaluation

Hydro-Pneumatic Frequency Regulator (HPFR): Evidence Bundle and Monte Carlo Evaluation Author: Abraham Joseph Heald This repository contains the final evidence bundle for the Hydro-Pneumatic Frequency Regulator (HPFR), a conceptual hydro-grid stabilization system integrating run-of-river hydroelectric generation with short-duration hydraulic-pneumatic accumulator storage. The HPFR concept was developed to investigate methods for improving utilization of river energy resources, recovering otherwise-spilled flood-pulse energy, and providing rapid grid-support services including frequency regulation and fast response dispatch. The repository includes: • Monte Carlo master sweeper simulation code • Simulation summary data • Engineering concept documentation • Metadata and citation files • Supporting publication materials A total of 100,000 Monte Carlo design cases were evaluated across hydraulic, economic, and operational parameters. Simulation results: • Total simulations: 100,000 • Successful 9.0+ designs: 974 • Success rate: 0.97% • Elite 9.4+ designs: 52 • Elite rate: 0.05% • Average overall score: 7.01/10 • Median overall score: 6.91/10 • Best observed score: 9.67/10 The simulation indicates that site-optimized HPFR configurations can achieve performance scores in the 9.4–9.7 range under favorable assumptions, while the broader practical engineering rating remains approximately 9.2/10 pending CFD analysis, finite-element validation, prototype construction, and site-specific market evaluation. This repository is intended as an engineering evidence bundle and concept-screening package. The results should not be interpreted as proof of commercial performance without further validation. Copyright © Abraham Joseph Heald.