The Building Technology & Urban Systems Division advances energy efficiency in the built environment—one of the world's most critical energy and environmental challenges.
The Building Energy Data Exchange Specification is a dictionary of terms and definitions commonly used in tools and activities that help stakeholders make energy investment decisions, track building performance, and implement energy efficient policies and programs.
This website documents prior, recent, and current LBNL work in Energy Management and Information Systems (EMIS). EMIS are the broad and rapidly evolving family of tools that monitor, analyze, and control building energy use and system performance. These technologies include benchmarking and utility bill tracking software, energy information systems (EIS), building automation systems, fault detection and diagnostic tools, and automated system optimization software.
Developing energy-efficient window systems and studying advanced daylighting designs that allow the use of natural light in place of electric lighting. Our collaborative research is committed to serving industry needs and helping stakeholders understand how innovative solutions fit within the broad, complex context of building applications.
The Department of Energy-led Center of Expertise for Energy Efficiency in Data Centers demonstrates national leadership in decreasing the energy use of data centers. Through the supply of technical support, tools, best practices, analyses, and the introduction of technologies, CoE assists federal agencies and other organizations implement data center energy efficiency projects.
The Demand Response Research Center plans and conducts multi-disciplinary research to advance demand response within Smart Grid infrastructures in California, the nation, and abroad.
The Department of Energy's FLEXLAB® at Berkeley Lab is the most flexible, comprehensive and advanced building efficiency simulator in the world, and is unleashing the full potential of improved energy efficiency in buildings.
The Heat Island Group at Lawrence Berkeley National Laboratory works to cool buildings, cities, and the planet by making roofs, pavements, and cars cooler in the sun.
The High-Performance Buildings for High-Tech Industries site provides resources to increase the energy efficiency of data centers, laboratories, hospitals, and cleanrooms.
The IMPEL vision is to integrate market-oriented skillsets with the advanced scientific thinking at the national labs in order to focus early-stage building technologies R&D on industry gaps, and catalyze it towards private sector engagement and impact.
Our team collaborates with governments, utilities, and industry to encourage more efficient use of energy and other resources in the industrial sector. We develop energy and demand management practices, standards, policies, analysis, and technologies for both the U.S. and world markets.
The Residential Building Systems group (RBS) works on problems associated with whole-building integration involving modeling, measurement, design, and operation. Most of its tasks focus on the movement of air and associated penalties involving distribution of pollutants, energy and fresh air.
The Simulation Research Group specializes in the research, development and deployment of software that support the design and operation of buildings, as well as the research of next-generation building energy and control systems.
The Smart Energy Analytics Campaign is a program led by the U.S. Department of Energy that encourages the use of a wide variety of commercially available Energy Management and Information Systems (EMIS) technologies and ongoing monitoring practices to help uncover those energy-saving opportunities and improve building performance for the long run.
Standby power is electricity used by appliances and equipment while they are switched off. This website presents information on standby power and technologies to reduce it.
Supporting the mission of the Department of Energy to increase the energy efficiency of windows and buildings. We accomplish this using advanced technology development, algorithms and software tools, supported by an extensive array of testing facilities and experienced scientists.
The Windows and Envelope Materials Group conducts research, development and demonstration projects to reduce the energy-related impacts of building envelopes. The scope includes R&D on new technologies and systems, extensive lab and field performance testing and development of new simulation tools to predict properties and energy impacts.
Promoting innovation in energy efficiency through collaborative research, contributing to significant reduction in energy use in both nations.