End-Use Load Research Home Energy Metering Study – Final Report

This is the final report for the residential End-Use Load Research (EULR) project Home Energy Metering Study (HEMS), conducted by Evergreen Economics. HEMS collected one-minute, circuit-level energy use data from more than 400 homes across the Northwest between 2018 and 2026, resulting in a dataset of more than 14 billion data points. This report examined how residential energy use changes throughout the day by analyzing nine different normalized load shapes across weekdays, weekends and seasons, including:

• Whole Home
• Ducted Heat Pumps
• Ductless Heat Pumps
• Heat Pump Water Heaters
• Standalone Electric Forced Air Furnaces
• Backup Electric Forced Air Furnaces
• Central Air Conditioners
• Electric Baseboard Heaters
• Electric Resistance Storage Water Heaters

In addition, the study compared load shapes before and after the COVID-19 pandemic, highlighting how shifts in home occupancy and daily routines affected energy use patterns.

HEMS data is publicly available in 15-minute intervals at neea.org/EULR. Anyone interested in using the data is encouraged to start with the HEMS Public Data User Guide, which provides important context and direction for working with the dataset.