Resources Source


Deep Retrofit Resources, an online and published guide by the Rocky Mountain Institute (RMI), focuses on catalyzing deep energy retrofits across the US commercial building stock. This resource website provides comprehensive sector-specific information for investors, owners and tenants, and retrofit practitioners. 

A deep energy retrofit is a whole-building analysis and construction process intended to achieve much larger energy savings than conventional retrofits. It typically results in savings of 30% or more, and can be applied to both residential and commercial buildings. Often, these measures are implemented over a few months or years rather than all at once.

The Opportunity
As US building stock ages, it is in need of major renovations and energy efficiency upgrades. Deep energy retrofits represent a business opportunity for building owners, occupants, and design professionals to reduce carbon emissions and decrease energy spending, generate new jobs and innovative design ideas, and improve American energy security. The retrofits can be made at the same time as energy efficiency improvements. The Rocky Mountain Institute created the Deep Retrofits guide focused on high-impact cost saving measures to help building owners take advantage of this opportunity.

 The value in a deep energy retrofit 
is the net present value of all of the benefits of a deep energy and sustainability investment. 

Source: The Rocky Mountain Institute.

The RMI has published four guides to deep retrofits:
  1. Building the Business Case 
  2. Managing Deep Retrofits
  3. Identifying Design Opportunities
  4. How to Calculate and Present Deep Retrofit Value

Rocky Mountain Institute website lists additional resources for owners, tenants, investors, and sustainability practitioners. Major topics include: Retrofit 101, How to Retrofit, Case Studies, and Value. The site also provides in-depth information on financing.

To learn more about deep retrofits, or to read more about commercial building energy use and opportunities to reduce carbon emissions, please visit the Rocky Mountain Institute site here.


“It actually makes sense to make large and significant energy efficiency improvements, not the 5 to 10 percent type things, but the 20 to 30 percent and more type of improvements, and that there is a business case for doing so. ”
Clay Nesler, VP of Global Energy and Sustainability, Johnson Controls

Welcome to the Building Energy Exchange! Located in downtown Manhattan, we’re a resource center dedicated to advancing efficient energy and lighting design in buildings. Explore this site for helpful case studies and reports, check out our calendar for a wide range of activities and events, and follow our lively blog, Insight. Our site is growing all the time—drop us an email to contribute or comment!