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The U.S. DOE Energy Efficiency and Renewable Energy Web site provides information on energy efficiency and renewable energy technologies.

DOE2.com Home Page

Elite Software - 30 hvac software programs for all aspects of hvac, plumbing and electrical System Design

EnergySoft provides software and consulting services for residential and commercial building analysis. With over 25 years of experience in the analysis of building energy use, our company provides a complete spectrum of analysis services. This same e...

Autodesk is a world leader in 3D design software for manufacturing, building, construction, engineering, and entertainment. Since introducing AutoCAD in 1982, Autodesk has developed a broad portfolio of 3D CAD software programs to help users visualiz...

Welcome to the Homepage of the California Energy Commission. Our website facilitates access to data on energy production, consumption, conservation and use in California, as well as information on renewable energy and energy research. Contents copyri...

Turnstile, Revolving Door ? Boon Edam delivers a broad range of innovative, high quality turnstile, revolving door and security entrance solutions.

Wrightsoft HVAC software is the complete solution for HVAC load calculations, system design and sales requirements.

Software, training, and consulting for building performance and energy efficiency. Performance Systems Development advocates a whole-house approach to building energy management.