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Energy Design Resources is funded by California utility customers under the auspices of the California Public Utilities Commission.

Software & Tools

EDR offers a wide range of software tools for building energy simulation, commissioning, equipment specification, and more.


  • eQUEST®
    August 27, 2010
    8 comments

    eQUEST® is a sophisticated, yet easy to use building energy use analysis tool which provides professional-level results with an affordable level of effort. This freeware tool was designed to allow you to perform detailed analysis of today's state-of-the-art building design technologies using today's most sophisticated building energy use simulation techniques but without requiring extensive experience in the "art" of building performance modeling. This is accomplished by combining a building

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  • Commissioning Assistant™
    March 17, 2010
    0 comments

    Commissioning Assistant is a web-based tool designed to provide project-specific building commissioning information to design teams. The tool will enable the user to evaluate probable commissioning cost, to identify an appropriate commissioning scope, and to access sample commissioning specifications related to their construction project.

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  • CoolTools™
    February 24, 2010
    1 comment

    The CoolTools™ project objective is to develop, disseminate and promote an integrated set of tools for design and operation of chilled water plants.

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  • eVALUator™
    July 31, 2009
    0 comments

    eVALUator is an easy-to-use Windows™-based program that calculates the lifecycle benefits of investments that improve building design. It analyzes the financial benefits from buildings that reduce energy cost, raise employee productivity, and enhance tenant satisfaction.

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  • SkyCalc™
    February 10, 2009
    1 comment

    SkyCalc™ is a simple computer tool that helps building designers determine the optimum skylighting strategy that will achieve maximum lighting and HVAC energy savings for a building. This program is a Microsoft Excel™ spreadsheet application that runs on a personal computer.

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  • Green Building Studio®
    July 27, 2008
    0 comments

    The Green Building Studio® web-based energy analysis service can help architects and designers perform whole building analysis, optimize energy efficiency, and work toward carbon neutrality earlier in the design process. With faster, more accurate energy analysis of building design proposals, architects and designers can work with sustainably in mind earlier in the process, plan proactively, and build better.

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  • SPOT™
    December 1, 2006
    0 comments

    The Sensor Placement + Optimization Tool or SPOT™ is intended to assist a designer in quantifying the existing or intended electric lighting and annual daylighting characteristics of a given space and to help establish the optimal photosensor placement for the space relative to annual performance and annual energy savings.

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  • EDR Charrette™
    May 14, 2004
    0 comments

    EDR Charrette is an online tool that allows you to quickly investigate the energy impacts of various design scenarios on a typical building, and then review the analysis graphically in an easy to understand web-based format.

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