Home and Commercial Energy Metering Studies


The Northwest has not conducted large-scale studies on how different types of residential and commercial customers use electricity on a daily basis for almost 30 years – the Home Energy Metering Study (HEMS) and the Commercial Energy Metering Study (CEMS), both launching in 2019, aim to change this.

Why? An accurate assessment of the electricity use in the region can contribute to reducing energy use, lowering energy costs, increasing the use of renewable energy, displacing harmful air emissions from power plants, and continuing the reliability of electric service.

Why now? A need for a better understanding of electricity in the region has grown with changes in, electric appliances, heating and cooling systems, water heating, and newer electricity uses like LED lighting and electric vehicles.

What’s involved? Over 400 Northwest households and approximately 100 commercial buildings will eventually be metered for the study.  The information collected will be completely confidential and no personally-identifying information will be shared.  

Who’s involved? A group of utilities and regional organizations came together to collaborate on this long-term Northwest residential and commercial study of electricity use. This group includes Avista Utilities, Bonneville Power Administration, Clark PUD, Energy Trust of Oregon, The Northwest Power and Conservation Council, PacifiCorp, Portland General Electric, Puget Sound Energy, Seattle City Light, Snohomish PUD, and Tacoma Power.  

Evergreen Economics is managing the Home Energy Metering Study and recruiting customers to participate. For more information about the Home Energy Metering Study, please contact Evergreen Economics at HomeEnergyMeteringStudy@evergreenecon.com or (833) 971-HEMS, or see the link below.

In the end, this study seeks to help the entire region achieve its clean energy goals by more accurately identifying the role of energy efficiency in improving the environment, providing better electric service, and saving money for Northwest electricity customers.   

For more information on the Home Energy Metering Study (HEMS), please go to neea.org/HEMS.