Carbon-free buildings

Energy efficiency

This simple score can help you find an energy-efficient home

A growing number of cities are mandating Home Energy Scores, a metric that makes it easy for potential renters or homebuyers to grasp a home’s energy use.

By Alison F. Takemura  . 

1-story gray house with slanted roof, yellow door, covered entryway, and green bushes.
This Portland home caught my eye with its canary-yellow door. But I was less charmed by its low Home Energy Score: a 2 out of 10. (