B:
Building America - A private/public partnership that conducts research to find energy-efficient solutions for new and existing housing that can be implemented on a production basis [Department of Energy (DOE), Energy Efficiency and Renewable Energy (EERE)]

Building Energy Codes Program - Works with other agencies and organizations to promote stronger building energy codes and help states adopt, implement, and enforce those codes [Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE)]

Building Energy Software Tools Directory - Provides information on hundreds of building software tools for evaluation of energy efficience, renewable energy, and sustainablilty in buildings [Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE)]

Building Technologies Department - Researches and develops window, lighting, and glazing technologies that save energy and maximize comfort, and designs software that allows architects and building engineers to design or retrofit buildings [Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

Building Technologies Program - Works in partnership with states, industry, and manufacturers to improve the energy efficiency of our nation's buildings [Department of Energy (DOE), Energy Efficiency and Renewable Energy (EERE)]

Building Technologies at Lawrence Berkeley - Provides a research paper database, publications, software tools, and international resources on the energy efficiency of buildings. [Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

Buildings Program - Develops automated diagnostics for building applications [Department of Energy (DOE), Pacific Northwest National Laboratory (PNNL)]

Buildings Research - Carries out research to improve the energy efficiency of buildings and to accelerate the use of renewable energy technologies within the next decade [Department of Energy (DOE), National Renewable Energy Laboratory (NREL)]

Buildings Technology Center (BTC) - Research facility devoted to the development of technologies that improve the energy efficiency and environmental compatibility of residential and commercial buildings [Department of Energy (DOE), Oak Ridge National Laboratory (ORNL)]

C:
Center for the Built Environment (CBE) - Provides innovative building technologies to improve the environmental quality, energy efficiency, and workplace productivity of commercial buildings [National Science Foundation (NSF), Industry/University Cooperative Research Centers (IUCRC)]

D:
Distributed Energy Program - Focuses on natural gas and renewable energy that will be easily interconnected with the nation's infrastructure for the next generation of electricity [Department of Energy (DOE), Energy Efficiency and Renewable Energy (EERE)]

E:
Energy Efficient Products - Calculate lifetime energy cost savings for specific products at various efficiency levels and hours of operation [Department of Energy (DOE), Federal Energy Management Program (FEMP)]

EnergyStar Home Energy Yardstick - Compare your home's energy efficiency to similar homes across the country and get recommendations for energy-saving home improvements from ENERGY STAR. [Environmental Protection Agency (EPA); Department of Energy (DOE)]

Engineering - making imagination real - Conducts research, development, and demonstrations to increase the quality of and user satisfaction with commercial buildings and integrated building systems, while improving cost, time, and energy-efficiency [National Science Foundation (NSF), Industry/University Cooperative Research Centers (IUCRC)]