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.
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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

2017

Iyer, Maithili, Satish Kumar, Sangeeta Mathew, Hannah Stratton, Paul A Mathew, and Mohini Singh."Establishing a commercial building energy data framework for India: Approaches, use cases, and institutions."INSPIRE 2017 (2017).

2016

Iyer, Maithili, Satish Kumar, Sangeeta Mathew, Hannah Stratton, Paul A Mathew, and Mohini Singh."Establishing a Commercial Buildings Energy Data Framework for India: A Comprehensive Look at Data Collection Approaches, Use Cases and Institutions." (2016).

Mathew, Paul A, Sangeeta Mathew, Satish Kumar, Mohini Singh, Hannah Stratton, and Maithili Iyer."India Commercial Buildings Data Framework: A Summary of Potential Use Cases." (2016).

Iyer, Maithili, Hannah Stratton, Sangeeta Mathew, Satish Kumar, Paul A Mathew, and Mohini Singh."Review of Building Data Frameworks Across Countries: Lessons for India." (2016).

2010

Harris, Jeffrey P, Richard C Diamond, Carl Blumstein, Chris Calwell, Maithili Iyer, Christopher T Payne, and Paul Siderius."Towards a Policy of Progressive Efficiency."People-Centered Initiatives for Increasing Energy Saving (2010).

2008

Harris, Jeffrey P, Richard C Diamond, Maithili Iyer, Christopher T Payne, Carl Blumstein, and Paul Siderius."Towards a sustainable energy balance: progressive efficiency and the return of energy conservation."Energy Efficiency 1.3 (2008) 175-188. DOI

2006

Iyer, Maithili, Willett Kempton, and Christopher T Payne."Comparison groups on bills: Automated, personalized energy information."Energy and Buildings 38.8 (2006) 988-996. DOI

Harris, Jeffrey P, Richard C Diamond, Maithili Iyer, Christopher T Payne, and Carl Blumstein."Don't Supersize Me! Toward a Policy of Consumption-Based Energy Efficiency."ACEEE Summer Study on Energy Efficiency in Buildings (2006) 7-100-7-114.

2004

Deringer, Joseph J, Maithili Iyer, and Yu Joe Huang."Transferred Just on Paper? Why Doesn't the Reality of Transferring/Adapting Energy Efficiency Codes and Standards Come Close to the Potential?."ACEEE Summer Study on Energy Efficiency in Buildings (2004).

1998

Iyer, Maithili, Willett Kempton, and Christopher T Payne."Comparison Groups as a Tool for Evaluating Energy Efficiency Programs: An Analysis of ENERGY STAR@ Billing Comparison Groups."ACEEE Summer Study on Energy Efficiency in Buildings (1998) 8.179-8.192.

1996

Lord, Deirdre, Willett Kempton, Sam Rashkin, Annette Wilson, Christine Egan, Anita Eide, Maithili Iyer, and Christopher T Payne."Energy Star Billing: Innovative Billing Options for the Residential Sector."ACEEE Summer Study on Energy Efficiency in Buildings (1996) 2.137-2.143.