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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.


  • Ace Tools™
    August 16, 2013
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    Ace Tools

    Introducing the Ace Tools - three different tools help identify the forms, installation techniques, and standards relevant to building projects in California.

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  • SPOT™
    July 17, 2013
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    SPOT

    The Sensor Placement + Optimization Tool SPOT™ assists 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.

    Version 4.22 now updated for Windows 7 and Excel 2007/2010.

    Version 4.0 (Windows XP / Excel 2003) remains available.

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  • Title 24 Reference Ace™
    June 12, 2013
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    T24 Reference Ace

    The Reference Ace™ tool is meant to help users navigate the Title 24, Part 6 Standards documents. The tool includes 2008 Residential and Nonresidential Standards, available online or via download. Key word search capabilities along with hyperlinked tables and related sections may make using the Standards documents easier.

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  • eQUEST®
    August 27, 2010
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    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
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    Commissioning Assistant

    Commissioning Assistant™ is a web-based tool designed to provide project-specific building commissioning information to design teams. The tool enables 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
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    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
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    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
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    SkyCalc

    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
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    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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  • EDR Charrette™
    May 14, 2004
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    EDR Charrette

    Coming Soon --> Charrette Assistant  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 report.

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