About Us +
Researchers in the Building Technology & Urban Systems Division (BTUS) at Lawrence Berkeley National Laboratory develop data and technologies that increase energy efficiency and improve the health, safety and comfort of building occupants, in the United States and worldwide.

We work closely with industry partners, academics and government officials to achieve these goals, and share our research widely
Research +
We are at the forefront of cutting-edge research that redefines building technology and explores all areas of urban systems.

We have been leaders for decades in developing energy-efficient windows, improving indoor air quality, coming up with new ideas to fix the nation's electricity grid, and so much more.

Visit our research areas at the right to find out more.
Colum 1 +
Colum 2 +
Publications +
Enjoy presentations from Building Technology & Urban systems research experts on a wide variety of topics in the areas of building energy efficiency, the electricity grid and how it relates to buildings and much more.
- Presentations
News
Tools & Guides +
Explore our tools, guidebooks and software and download for free.

We offer a variety of technologies designed to simulate and model real-world circumstances to assist in energy-saving programs and help building owners build better buildings. These tools can help calculate performance of building systems like windows and shades, help consumers and builders pick the best windows for a variety of applications and much more.

Publications

Publications By Research Area

2023

Fitzgerald, Patrick, Peter L Therkelsen, Paul Sheaffer, and Prakash Rao."Deeper and persistent energy savings and carbon dioxide reductions achieved through ISO 50001 in the manufacturing sector."Sustainable Energy Technologies and Assessments 57 (2023) 103280. DOI

2021

Therkelsen, Peter L, Heidi Fuchs, William Miller, A Whitlock, and E Rightor."Strategic Energy Management Program Persistence and Cost Effectiveness An Analysis of the SEM Program Landscape." (2021). DOI

2020

Earni, Shankar, and Peter L Therkelsen."Non-routine adjustments – towards standardizing M&V approach for quantifying the effects of static factors."eceee Industrial Efficiency 2020 - DECARBONISE INDUSTRY! (2020). DOI

2019

Aghajanzadeh, Arian, and Peter L Therkelsen."Agricultural demand response for decarbonizing the electricity grid."Journal of Cleaner Production 220 (2019) 827 - 835. DOI

2018

Therkelsen, Peter L, Jingjing Liu, Holly Grell-Lawe, and Randy Green."Implementation of ISO 50001 at Marine Corps Air Station Beaufort." (2018).

Liu, Jingjing, Arian Aghajanzadeh, Paul Sheaffer, Peter L Therkelsen, and Nathaniel Allen."Accelerating the Uptake of ISO 50001 in Commercial Buildings: Two Early Adopters Utilizing an “Enterprise-wide” Approach to Save Energy and Beyond."2018 ACEEE Summer Study on Energy Efficiency in Buildings (2018).

2017

Aghajanzadeh, Arian, Aimee T McKane, Paul Sheaffer, Peter L Therkelsen, and Prakash Rao."AUTOMATED REGISTER V1.0.3: User Manual for Using the Automated Register of Implemented Actions." (2017).

Liu, Jingjing, Prakash Rao, Peter L Therkelsen, Paul Sheaffer, Paul Scheihing, and Yannick Tamm."ISO 50001 and SEP Faster and Cheaper - Exploring the Enterprise-Wide Approach." (2017).

Rapp, Vi H, Robert K Cheng, and Peter L Therkelsen."A high turndown, ultra low emission low-swirl burner for natural gas, on-demand water heaters." (2017).

2016

Therkelsen, Peter L, Robert K Cheng, and Darren Sholes."Research and Development of Natural Draft Ultra-Low Emissions Burners for Gas Appliances." (2016).

Aghajanzadeh, Arian, Peter L Therkelsen, Prakash Rao, and Aimee T McKane."Global Impact Estimation of ISO 50001 Energy Management System for Industrial and Service Sectors." (2016).

Therkelsen, Peter L, Prakash Rao, Arian Aghajanzadeh, and Aimee T McKane."The ISO 50001 Impact Estimator Tool (IET 50001 V1.1.4) - User Guide and Introduction to the ISO 50001 Impacts Methodology." (2016).

2015

Therkelsen, Peter L, Prakash Rao, Aimee T McKane, Ridah Sabouni, Yannick Tamm, and Paul Scheihing."Development of an Enhanced Payback Function for the Superior Energy Performance Program."2015 American Council for an Energy-Efficient Economy Summer Study on Energy Efficiency in Industry (2015).

2013

Therkelsen, Peter L, Aimee T McKane, Ridah Sabouni, and Tracy Evans."Assessing the Costs and Benefits of the Superior Energy Performance Program."American Council for an Energy-Efficient Economy (ACEEE) Summer Study on Energy Efficiency in Industry (2013).

Therkelsen, Peter L, and Aimee T McKane."Implementation and Rejection of Industrial Steam System Energy Efficiency Measures."Energy Policy 57 (2013) 318-328. DOI