About the LBT

The Laboratory Benchmarking Tool (LBT) is the successor to the Labs21 Benchmarking Tool, which was retired in 2019 after 16 years of service. The LBT provides a modern graphing interface, along with many new and reconfigured data fields designed to meet the needs of today's lab community. Additional modules are frequently added to the LBT to further expand its functionality.

The LBT is sponsored by the Federal Energy Management Program at the U.S. Department of Energy (DOE). It was developed by kW Engineering, Lawrence Berkeley National Laboratory, and the International Institute for Sustainable Laboratories (I2SL). The Actionable Insights module and LBT Internationalization were sponsored by Siemens Smart Infrastructure and were developed by I2SL and kW Engineering. The Portfolio Manager Connection, Operational Practices module, and metric units mode were sponsored by FEMP and were developed by LBNL and kW Engineering. Questions and feedback about the LBT can be directed to

Berkeley Lab kW Engineering
I2SL Siemens

About Labs2Zero and the Pilot Energy Score

Development of the Energy Score module was supported by I2SL's Labs2Zero program. I2SL's Labs2Zero Founding Sponsors are listed below.

Labs2Zero logo

Release Notes

v1.60, 16 October 2023
Energy Score Module. For additional details please refer to the FAQ.

v1.50, 7 October 2022
LBT Internationalization: part 2 of 2. For additional details please refer to the FAQ.

License statement

This site uses data from Berkeley Lab's Building Performance Database, but is not endorsed or certified by Berkeley Lab.