| Building & Industrial Energy Systems Division

About Us +
Researchers in the Building & Industrial Energy Systems Division (BIES) at Lawrence Berkeley National Laboratory work closely with industry, government and key decision makers to inform and develop building and industrial energy systems that increase energy efficiency, save money and improve health and safety for building occupants.

The BIES Division engages in innovative and creative research to advance energy efficiency in the built environment, one of the world's most critical energy and environmental challenges because buildings are the world's largest energy-users.
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
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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.

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2025

Li, Han, Miguel Heleno, Wanni Zhang, Kaiyu Sun, Luis Rodriguez Garcia, and Tianzhen Hong."A cross-dimensional analysis of data-driven short-term load forecasting methods with large-scale smart meter data."Energy and Buildings 344 (2025) 115909. DOI

Zanetti, Ettore, David Blum, Hongxiang Fu, Chris Weyandt, Marco Pritoni, and Mary Ann Piette."Commercial building HVAC demand flexibility with model predictive control: Field demonstration and literature insights."Energy and Buildings 345 (2025) 116097. DOI

Mulayim, Ozan Baris, Anand Prakash, Lazlo Paul, and Marco Pritoni."Extraction and Analysis of Time Series Data from Building Automation Systems Using Large Language Models." (2025). DOI

Pereira, Flavia deAndrade, Kyriakos Katsigarakis, Dimitrios Rovas, Marco Pritoni, Conor Shaw, Lazlo Paul, Anand Prakash, Susana Martin-Toral, Donal Finn, and James O’Donnell."A semantics-driven framework to enable demand flexibility control applications in real buildings."Advanced Engineering Informatics 64 (2025) 103049. DOI

Siegel, Lino Sanchez, Luis L Fernandes, Paul A Mathew, and Sang Hoon Lee."A building performance-based approach to determining energy resilience for grocery stores in the event of a power outage."Science and Technology for the Built Environment (2025) 1-17. DOI

Paul, Lazlo, Ettore Zanetti, Jingjing Liu, Armando Casillas, Anand Prakash, David Blum, Robert Nirenberg, and Marco Pritoni."BOPTEST as a Platform for Building Controls and Grid-Interactive Buildings Workforce Training." (2025). DOI

Lee, Sang Hoon, and Evan Savage."E2C Expert Match Technical Assistance Adams County, Colorado." (2025).

Lee, Sang Hoon, and Evan Savage."E2C Expert Match Technical Assistance: City of Reading, Pennsylvania." (2025).

Lee, Sang Hoon, and Melake Getabecha."E2C Expert Match Technical Assistance: El Centro, California." (2025).

Lee, Sang Hoon, and Evan Savage."E2C Expert Match Technical Assistance: The Southern Sustainability Institute in Athens-Clark, Georgia." (2025).

Lee, Sang Hoon, and Melake Getabecha."E2C Expert Match Technical Assistance: United Domestic Workers in El Centro, California." (2025).

Grant, Peter, Noah Gabriel, Weiping Huang, and Tao Yang."Field Demonstration of Cost Minimizing Load Shifting Controls for 120V Heat Pump Water Heaters in Different Pricing Scenarios."2025 ASHRAE Annual Conference (2025). DOI

Paul, Lazlo, Sang woo Ham, Anand Prakash, Armando Casillas, Tao Yang, and Marco Pritoni."HP-FLEX: Field demonstration of the semantics-driven configuration of a Model Predictive Control system to make heat pumps flexible." (2025). DOI

Paul, Lazlo, Flavia De Andrade Pereira, Anand Prakash, Sang woo Ham, Jingjuan Feng, Rich Brown, and Marco Pritoni."Open building operating system: a grid-responsive semantics-driven control platform for buildings."Science and Technology for the Built Environment 31.3 (2025) 294-311. DOI

Zheng, Wanfu, Laura Zabala, Jesus Febres, David Blum, and Zhe Wang."Quantifying and simulating the weather forecast uncertainty for advanced building control."Journal of Building Performance Simulation (2025) 1-16. DOI

2024

Chiosa, Roberto, Marco Savino Piscitelli, Marco Pritoni, and Alfonso Capozzoli."A portable application framework for energy management and information systems (EMIS) solutions using Brick semantic schema."Energy and Buildings 323 (2024) 114802. DOI

DeForest, Nicholas, Miguel Heleno, J.P Daniel, and Amanda Krelling."ETIPP - Aquinnah and Chilmark - Project Planning for Community Resilience."ETIPP - Aquinnah and Chilmark - Project Planning for Community Resilience (2024).

Paul, Lazlo, Marco Pritoni, Cynthia Regnier, Jason S MacDonald, Richard E Brown, and Cecilia Johnson."Architecting the Future: Exploring Coordinated Control Frameworks for Connected Communities."ACEEE Summer Study (2024).

Casillas, Armando, Thomas Defauw, Sang woo Ham, Dre Helmns, Lazlo Paul, Anand Prakash, Weiping Huang, Peter Grant, and Marco Pritoni."Demystifying Thermal Energy Storage Integrated Heat Pump Systems: Development of Generalized Sizing and Control Algorithms for Demand Flexibility."ACEEE Summer Study (2024).

Casillas, Armando, Jessica Granderson, Yimin Chen, John House, Guanjing Lin, Weiping Huang, Guhan Velmurugan, and Marco Pritoni."Innovating the next generation of commercial smart building software."ACEEE Summer Study (2024).

Ham, Sang woo, Lazlo Paul, Armando Casillas, Anand Prakash, Donghun Kim, Richard E Brown, Marco Pritoni, and Peter Grant."Practical challenges of model predictive control (MPC) for grid interactive small and medium commercial buildings."ACEEE Summer Study (2024).

Agarwal, Shreya, Marco Pritoni, Jessica Collier, Jeff Wanner, Ruth Taylor, Meghan McNulty, and Mary M Bryan."Through the looking glass: analyzing barriers to adoption of advanced rooftop unit controls through human-centered observational research."ACEEE Summer Study (2024).

Nordman, Bruce, Lauren Parker, Anand Prakash, and Mary Ann Piette."Transforming Demand Response using Open ADR 3.0." (2024). DOI

Xu, Yujie, Pouya Vahmani, Andrew Jones, and Tianzhen Hong."Anthropogenic heat from buildings in Los Angeles County: A simulation framework and assessment."Sustainable Cities and Society 107 (2024) 105468. DOI

Krelling, Amanda, Roberto Lamberts, Jeetika Malik, Wanni Zhang, Kaiyu Sun, and Tianzhen Hong."Defining weather scenarios for simulation-based assessment of thermal resilience of buildings under current and future climates: A case study in Brazil."Sustainable Cities and Society 107 (2024) 105460. DOI