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

2022

Earni, Shankar, and Philip Coleman."Better bang for your buck? Comparing savings realization from ESPCs and direct-funded projects."ACEEE Summer Study 2022 (2022). DOI

2020

Earni, Shankar, Philip Coleman, Elizabeth Stuart, and Peter H Larsen."eProject Builder: Promoting wider adoption of energy savings performance contracts through standardization and transparency."energise 2020 ENERGY INNOVATION FOR A SUSTAINABLE ECONOMY (2020) 300-308.

Coleman, Philip, Shankar Earni, Bob Slattery, and Christine Walker."M&V in ESPC: The U.S. Federal Experience and Implications for Developing ESPC Markets."energise 2020 ENERGY INNOVATION FOR A SUSTAINABLE ECONOMY (2020) 216-221.

Mathew, Paul A, Philip Coleman, Cynthia Regnier, Jordan Shackelford, Duane Kubischta, Sarah Zaleski, and Blake Dressel."Package deals for deep savings: Scaling deep retrofits in commercial buildings with integrated systems packages."ACEEE (2020).

2019

Mathew, Paul A, Philip Coleman, Janie Page, Cynthia Regnier, Jordan Shackelford, Greg Hopkins, Matt Jungclaus, and Victor Olgyay."Energy Efficiency and the Real Estate Lifecycle: Stakeholder Perspectives." (2019).

2018

Mathew, Paul A, Nancy Wallace, Paulo Issler, Baptiste Ravache, Philip Coleman, and Cindy Zhu."Do energy costs really affect commercial mortgage default risk? New results and implications for energy efficiency investments."2018 Summer Study on Energy Efficiency in Buildings (2018). DOI

2016

Mathew, Paul A, Philip Coleman, Nancy Wallace, Paulo Issler, Lenny Kolstad, and Robert Sahadi."Energy Factors in Commercial Mortgages: Gaps and Opportunities." (2016).

2015

Chiles, Thomas, Kenneth Shutika, and Philip Coleman."Riding the Electricity Market as an Energy Management Strategy: Savings from Real-Time Pricing." (2015).

Coleman, Philip."Escalation Rates in Energy Savings Performance Contracts."Energy Engineering 112.5 (2015). DOI

Coleman, Philip."Guide to Promoting an Energy Efficient Public Sector (PePS)." (2015).

Scheib, Jennifer, Philip Coleman, and Shanti Pless."Realizing High-Performance Buildings." (2015).

2014

Coleman, Philip, Shankar Earni, and Charles H Williams."Could what that ESCO sales rep said really be true? Savings realization rates in ESPC versus bid-to-spec projects."2014 ACEEE Summer Study on Energy Efficiency in Buildings (2014).

2011

Earni, Shankar, Philip Coleman, and Mark D Sanders."Integrated Framework toward a Closed Loop Measurement and Verification Approach."ACEEE Summer Study on Energy Efficiency in Industry 1 (2011) 68-79.

2008

Coleman, Philip, Christopher T Payne, and Richard G White."A Plea for Simpler Electricity Tariffs."2008 ACEEE Summer Study on Energy Efficiency in Buildings 7 (2008) 60-69.

2006

McGrory, Laura Van Wie, Philip Coleman, David Fridley, Jeffrey P Harris, and Edgar Villasenor Franco."Two Paths to Transforming Markets through Public Sector Energy Efficiency: Bottom Up versus Top Down."2006 ACEEE Summer Study on Energy Efficiency in Buildings 6 (2006) 265-276.

2004

Coleman, Philip, and Jeffrey P Harris."Public Sector Leadership: Government Purchasing of Energy-efficient Products to Save Energy and “Pull” the Market."Kuwait ASST Workshop on Energy Conservation in Buildings (2004).

2000

Shugars, John, Philip Coleman, Christopher T Payne, and Laura Van Wie McGrory."Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners."Proceedings from the 2000 ACEEE Summer Study on Energy Efficiency in Buildings 10 (2000) 217-226.

Coleman, Philip, and Alexander T Shaw."Guide Specifications: An Overlooked Avenue for Promoting Building Energy Efficiency."2000 ACEEE Summer Study on Energy Efficiency in Buildings 4 (2000) 47-54.

1998

Coleman, Philip."Reducing ‘Search Cost’ and Risk in Energy-efficiency Investments: Two Success Stories."1998 ACEEE Summer Study on Energy Efficiency in Buildings 4 (1998) 91-98.