The Building Energy Data Exchange Specification data dictionary is a response to the need for a standardized system of terms and definitions for building energy performance data. By providing a set of common terms and definitions, BEDES will provide the framework on which to build interoperable data schemas and software tools which reduce the time and expense currently invested in sharing data.

History

BEDES was originally developed for internal use to improve interoperability between DOE's software tools and data collection efforts.  As DOE began to utilize BEDES more internally, external stakeholders began to express an interest in using it.

In response, DOE commissioned a scoping study to explore whether common terms and definitions for building energy performance data might have broader use and value to the industry. Feedback from stakeholders and a review of the technical landscape both confirmed that common terms and definitions for building energy performance would have significant utility. Public and private stakeholders alike reported that data formatting, cleaning and management is burdensome and creates a barrier to the full utilization of existing building energy data. Many made comments such as, "It's the Wild West right now" and "Standardizing will unlock this industry."

The resulting BEDES 1.0 data dictionary grew out of a nine-month technical working group process led by Lawrence Berkeley National Lab, and was released in October 2014. BEDES beta, the first iteration of the project, was based on a review of over 40 different public and private sector data formats, including Energy Star Portfolio Manager and Green Button. Following extensive testing and feedback, BEDES 1.0 was released in October 2014.

Working in parallel to the technical working group, a strategic working group has developed further recommendations for the further development and advancement of the BEDES program.