Unlocking Ultra-Low Energy Performance in Existing Buildings

Download the document.

This paper catalogs deep retrofit activities in existing buildings. Our review of completed ultra-low energy building (ULEB) retrofit projects in the residential and commercial sectors shows that deep energy savings are technically feasible. While some buildings need extensive interventions requiring significant investments of time and money, others can meet aggressive targets at relatively low cost. Projects can use either leading-edge technologies and techniques or tried-and-true weatherization methods. Some building owners and occupants are willing to adopt new behaviors and practices to meet energy efficiency goals. We identify opportunities to increase the number of existing ULEBs through market development, advanced technologies, and new retrofit techniques. Moving forward, further work is needed to develop the best models for delivering savings and standardized approaches that will work at scale.

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.