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kWhOURS, Inc. makes commercial energy auditing software to improve building energy efficiency. Collect, Manage, and Connect. Download Free Trial!

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

Cleantech innovation: We are as gods, so we might as well get good at it.

Energy Audit Software for auditing business energy-efficiency. Calculate figures and generate reports relating to energy consumption, energy costs, and carbon dioxide emissions.

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

Renewable Energy World Online - Explore renewable energy news, jobs, events, companies, products, and more.

A killer Energy Auditing App and project management tool that will revolutionize energy modeling! For home performance contractors, HVAC professionals and utility energy conservation programs.

ecoInsight provides productivity collaborative tools and social networking to professionals in the building industry and you’ll get everything from auditing software toenergy auditor for free if you join us now.