Anthony Fontanini enhanced the NREL/OpenStudio-HPXML repository by developing a targeted feature for EV energy modeling that accounts for building occupancy. He updated the unavailable_periods.csv data file to ensure EV charging and discharging are marked as unavailable during vacant periods, directly addressing the risk of overestimating energy consumption when buildings are unoccupied. This work leveraged his skills in data management and energy modeling, utilizing CSV for structured data updates. The solution improved the fidelity of occupancy-aware energy predictions and included thorough documentation, laying a foundation for future model enhancements. The contribution demonstrated focused, domain-specific engineering within a short timeframe.