Thank you for visiting DOE2.com. This site is the place where you can obtain information and products from the developers of DOE-2 and DOE-2 based products including eQUEST. This site is maintained by and for EnerLogic and James J. Hirsch & Associates.

The DOE-2 software was developed by James J. Hirsch & Associates (JJH) in collaboration with Lawrence Berkeley National Laboratory (LBNL), with LBNL DOE-2 work performed mostly under funding from the United States Department of Energy (USDOE) and other work performed mostly under funding from a wide range of industry organizations and ourselves.  This site, however, is not sponsored or endorsed by either USDOE or LBNL, and use of “DOE” in names in this site does not imply any endorsement or recommendation of any listed products or services by the United States Government, LBNL, or anyone else.

Click here to visit the DOE website

Click here to visit the LBNL website

Follow this links to review a brief comparison of DOE-2.1E, DOE-2.2, eQUEST and PowerDOE. eQUEST is our most up-to-date complete building energy use simulation tool; it is free and contains a complete version DOE-2.2 and its documentation.

Note:  Most documents posted on this website are published using Adobe's Portable Document Format (PDF) with most using PDF version 1.5 (created using Acrobat version 9) and may not be readable with versions prior to 6; to update your Acrobat Reader go to the Adobe site for a free download.

 

 

 

 

 

Click here to view more information about eQUEST

eQUEST® is a sophisticated, yet easy to use, freeware building energy use analysis tool that provides professional-level results with an affordable level of effort.  eQUEST was designed to allow you to perform detailed comparative analysis of building designs and technologies by applying sophisticated building energy use simulation techniques but without requiring extensive experience in the "art" of building performance modeling.  This is accomplished by combining schematic and design development building creation wizards, an energy efficiency measure (EEM) wizard and a graphical results display module with a complete up-to-date DOE-2 (version 2.2) building energy use simulation program.  You can read the eQUEST Overview to get a more complete summary of the features and capabilities of this excellent program.

 eQUEST 3.65 is the most recent release.  For descriptions of the new features read this document.  eQ_WthProc can convert EnergyPlus (epw) files into eQUEST/DOE-2 (bin) files, see weather data area below.

You can see more information about eQUEST including download of program and documentation. You can also view the eQUEST download area to see recent versions of the program, documentation and updates.

Note: Effective 9 September 2009, eQUEST is Qualified Software (eQUEST 3.63bfor Calculating Commercial Building Tax Deductions first enacted under the Energy Policy Act of 2005 (EPACT) and later extended by the Emergency Economic Stabilization Act of 2008. The requirements for software to be qualified for use in these deductions were first covered by IRS Notice 2006-52 and then amplified by IRS IRB 2008-14 and again clarified by IRS IRB 2012-17 with further guidelines provided by DOE.  The submission packages, including ASHRAE Standard 140 testing, can be found here.

Note: On 25 August 2010 our eQUEST 3.64 submittal was approved by the California Energy Commission for approval as 2008 Title 24 non-residential ACMs. eQUEST 3.6 and D2comply 3.6 were approved by the California Energy Commission as 2005 Title 24 non-residential ACMs by the CEC at their 11 April 2007 business meeting. eQUEST 3.6 and 3.61b are approved for use with Savings By Design.

eQUEST is supported as a part of the Energy Design Resources program which is funded by California utility customers and administered by Pacific Gas and Electric, San Diego Gas & Electric, Southern California Edison, Southern California Gas under the auspices of the California Public Utilities Commission as well as the Sacramento Municipal Utilities District.

 

 

 

DOE-2 is a widely used and accepted freeware building energy analysis program that can predict the energy use and cost for all types of buildings. DOE-2 uses a description of the building layout, constructions, operating schedules, conditioning systems (lighting, HVAC, etc.) and utility rates provided by the user, along with weather data, to perform an hourly simulation of the building and to estimate utility bills. The “plain” DOE-2 program is a “DOS box” or “batch” program which requires substantial experience to learn to use effectively while offering researchers and experts significant flexibility; eQUEST is a complete interactive Windows implementation of the DOE-2 program with added wizards and graphic displays to aid in the use of DOE-2.

You can review more information about DOE-2 including download of program and documentation. We currently offer you our “latest and greatest” version as well as “legacy” version. DOE-2.2 is the newest DOE-2 building energy simulation and cost calculation engine. DOE-2.2 is the “simulation engine” contained within eQUEST and PowerDOE; we strongly recommend you consider eQUEST before trying to use “plain” DOE-2.  D2comply is a DOE-2.2 based California Title 24 compliance engine; D2comply 3.55 was approved by the California Energy Commission as a 2001 Title 24 non-Residential ACM on 4/27/2005; the D2comply 3.6 2005 Title 24 non-Residential ACM is not yet certified by the CEC but will be submitted for certification during August 2006.  DOE-2.1E is the “legacy” version of DOE-2.

Note: Effective 30 September 2009, DOE-2.2 is Qualified Software (DOE-2.2-047dfor Calculating Commercial Building Tax Deductions first enacted under the Energy Policy Act of 2005 (EPACT) and later extended by the Emergency Economic Stabilization Act of 2008. The requirements for software to be qualified for use in these deductions were first covered by IRS Notice 2006-52 and then amplified by IRS IRB 2008-14 and again clarified by IRS IRB 2012-17 with further guidelines provided by DOE.  The submission packages, including ASHRAE Standard 140 testing, can be found here.

The Weather Data & Utilities page provides a description of and access to weather data processing utilities which provide a variety of pre-processed weather data compatible with eQUEST, DOE-2.x and PowerDOE.  The available utilities include eQ_WthProc which can process EnergyPlus (epw) and DOEWth which can process NOAA/NCDC (TRY, TMY, etc.) files into eQUEST/DOE-2/PowerDOE (bin) files.  Utilities are also available to process eQUEST/DOE-2/PowerDOE (bin) files, including the capability to list, convert to/from text format, create statistical summaries, and other functions.

PowerDOEis our previous generation (1990's “legacy”) application; use eQUEST for the most up-to-date user interface and DOE-2 simulation capabilities.  PowerDOE includes an earlier version DOE-2.2 as its simulation "engine" for all energy and cost calculations.  Note that PowerDOE was designed for previous generations of Windows and will not operate properly when installed in more recent versions such as Windows 7.  For this reason we do not recommend utilize PowerDOE for any analysis and instead request you utilize eQUEST.

PowerDOE, including its "Quick Start Guide" and "Tutorial" is available free under 90 day evaluation licensing.  Licensed users can download the current version (v1.18g dated 5/2/2000) and also get installation and start-up instructions. PowerDOE is not available for purchase as it has been discontinued in favor of eQUEST.

The Life-Cycle Costing (LCC) analysis method is recognized to reliably identify cost optimal building design solutions yet it is not widely used with confidence.  The National Institute of Standards and Technology (NIST) and ANSI have suggested standardized LCC nomenclature and conventions so that the entire buildings industry can speak one "language" when performing LCC analysis.  NIST's LCC procedures are embodied in the Building Life-Cycle Cost (BLCC) Program; the NIST BLCC program and related utilities can be downloaded here. Although the LCC procedures used in BLCC have long been published (see here) some users express concern that BLCC does not display the intermediate details of its calculations. For this reason we have developed a spreadsheet version of BLCC procedures. Users of our spreadsheet version report greater confidence with its user-friendly "glass box" implementation of BLCC. Our BLCC spreadsheet includes year 2006 USDOE energy price escalation rates and is available FREE in Excel OfficeXP format (June 2008 version posted 1/29/09.) View a detailed description of this spreadsheet tool (sample screens, advantages, limitations) or a summary of recent (2008 version) enhancements.


Send mail to Jeff.Hirsch@DOE2.com with questions or comments about this web site.

Copyright © 1998-2012 James J. Hirsch.  All rights reserved.

eQUEST is a registered trademark of James J. Hirsch.  PowerDOE is a registered trademark of the Electric Power Research Institute.