Architectural Engineering

The ASHRAE Building EQ portal allows users to calculate a building's energy quotient. Registration is free.

This handbook was created by the California Energy Commission to introduce the basic concepts behind building performance tracking for commercial buildings.

Lawrence Berkeley Laboratory

This calculator helps designers to estimate carbon embodied in construction materials and to plan for carbon offsets.

Allows users to compare the annual energy performance of a building with a vegetative green roof to the same building with either a dark roof or a white roof.

"Information on hundreds of high-performance construction topics, including air sealing and insulation, HVAC components, windows, indoor air quality, and much more."

These free publications provide a sensible approach to easily achieve advanced levels of energy savings without having to resort to detailed calculations or analysis.

The Energy Star program provides labels to household appliances, building products, HVAC systems, water heaters, and lighting that meet strict energy-efficiency specifications set by the U.S. EPA

Provides energy efficiency ratings for windows, doors, and skylights.

Practical information on Energy Data Management, Financing. Lighting, Renewables, and Space Conditioning.

"Information on hundreds of high-performance construction topics, including air sealing and insulation, HVAC components, windows, indoor air quality, and much more."

Information on the U.S. Dept. of Energy's role in energy code development, adoption, and compliance. Also provides links to compliance tools, technical assistance, and code status of the 50 states.

Free registration permits access to the nation's largest dataset of information about the energy-related characteristics of commercial and residential buildings.

Information on energy usage in U.S. residential and commercial buildings, with links to the Energy Saver and Energy Star programs.