Peter Therkelsen

Peter Therkelsen

Mechanical Staff Scientist/Engineer


Dr. Peter Therkelsen is a Staff Scientist in the Building and Industrial Applications Department at the Lawrence Berkeley National Laboratory. He leads research focused on the development and deployment of energy management business practices and policies used by organizations of all types and sizes achieve their energy and decarbonization goals. He and the multi-disciplinary LBNL Energy Management System Team study and develop energy management system standards and resources; administer the US DOE 50001 Ready program; develop educational and professional training and certification programs; provide direct technical assistance to organization implementing ISO 50001 and 50001 Ready; and cultivate strategic partnerships with utilities, energy and sustainability consultants, trade associations, and government agencies at the state, federal, and international level. Dr. Therkelsen is Vice-chair of the US Technical Advisory Group to the International Standards Organization committee responsible for energy management and energy savings and has served as a US delegate for more than 10 years. Awarded in 2023, the LBNL Energy Management System Team is the inaugural R&D 100 Professional Team of the Year. Prior to his focus on energy management business systems Dr. Therkelsen conducted fundamental studies and developed innovative technologies for the combustion of alternative fuels such as hydrogen and biogas in industrial and utility scale heating and power systems.


2023 R&D 100 Award: R&D 100 Professional Team of the Year -  August 29th 2023

The Energy Management Systems Team receives the R&D 100 Professional Team of the Year Award from R&D World for its ongoing international efforts to advance energy management business practices in the commercial, manufacturing, and institutional sectors. The team has collectively built on each other’s strengths to make a profound impact in their respective fields. By leveraging their diverse academic and personal backgrounds, the team has created a technical program that reaches people working in all sectors of the economy. The team has published international standards, conducted original research, delivered technical assistance to organizations globally, developed professional workforce certification programs, and partnered with private and public sector organizations to accelerate the deployment of energy management business practices. The team’s resources and practices have been adopted by tens of thousands of organizations worldwide, including large and small manufacturers, regional hospital groups, government agencies, schools and universities, and corporate and boutique hotel chains. To learn more about energy management system business practices, visit

Spot: Erin Harbin, Tianzhen Hong, Joshua Kace, Kaiyu Sun, Peter Therkelsen -  May 17th 2023

For outstanding planning and execution of the 2023 BTUS Strategic Retreat

Spot: Industrial Technology Validation Team -  August 18th 2021

For development and execution of the Industrial Technology Validation program for DOE's Advanced Manufacturing Office.



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2017 Director’s Awards for Exceptional Achievement: Societal Impact -  April 3rd 2018

For research of barriers limiting adoption of ISO 50001 energy management business practices and development of the ISO 50001 energy and CO2 impacts methodology, which resulted in national and corporate commitments at Clean Energy Ministerial meetings and national efficiency programs.