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Apr 26 |
EnergyPlus Helpdesk Transition Complete
Posted by Michael J. Witte (Import) on 26 April 2012 05:02 PM
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The EnergyPlus helpdesk was moved to new servers and new software on April 26, 2012. If you encounter any problems with the helpdesk, please contact energyplus-support@gard.com
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Apr 5 |
DesignBuilder/EnergyPlus Building Energy Simulation Workshops
Posted by Michael J. Witte (Import) on 05 April 2012 03:05 PM
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May 24/25 San Francisco, CA May 29/30 Chicago, IL May 31/June 1 Boston, MA See the curriculum and register now as space is limited. http://designbuilderusa.com/2-day-designbuilderenergyplus-building-energy-simulation-workshop-curriculum Read more » | |
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Feb 2 |
Building Controls Virtual Test Bed 1.1 released
Posted by Linda Lawrie on 02 February 2012 05:01 PM
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We are pleased to announce the release of the Building Controls Virtual Test Bed 1.1 The following changes have been made compared to version 1.0: * The example files have been updated for EnergyPlus 7.0. * An actor has been added that allows reading CSV files. * The BCVTB has also been compiled for Windows 64 bit (in addition to Windows 32 bit, Linux 32/64 bit and Mac OS X 64 bit). The Building Controls Virtual Test Bed (BCVTB) is a freely available open-source software environment that allows expert users to couple different simulation programs for co-simulation, and to couple simulation programs with actual hardware. For example, the BCVTB allows to simulate a building in EnergyPlus and the HVAC and control system in Modelica, while exchanging data between the software as they simulate. The BCVTB is based on the Ptolemy II software environment. The BCVTB allows expert users of simulation to expand the capabilities of individual programs by linking them to other programs. Due to the different programs that may be involved in distributed simulation, familiarity with configuring programs is essential. Programs that are linked to the BCVTB are * the EnergyPlus whole building energy simulation program, * the Modelica modeling and simulation environment Dymola, * the MATLAB and Simulink tools for scientific computing, * the Radiance ray-tracing software for lighting analysis, * the BACnet stack, which allows exchanging data with BACnet compliant Building Automation System (BAS), * the analog/digital interface USB-1208LS from Measurement Computing Corporation that can be connected to a USB port. In addition to using programs that are coupled to Ptolemy II, Ptolemy II's graphical modeling environment can also be used to define models for control systems, for physical devices, for communication systems or for post-processing and real-time visualization. For free download and more information, please visit http://SimulationResearch.lbl.gov/bcvtb Read more » | |
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Jan 21 |
EnergyPlus Licensing
Posted by Linda Lawrie on 21 January 2012 11:18 PM
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EnergyPlus Licensing has changed. Please see the full description at: http://apps1.eere.energy.gov/buildings/energyplus/energyplus_licensing.cfm An excerpt from the website: EnergyPlus™ licenses are intended to encourage the use, improvement, and widespread adoption of EnergyPlus. Following is information about the licensing framework for EnergyPlus versions starting at 7.0, which differs from previous versions in three major ways: No fee executable distribution license. There are no fees for use or distribution of EnergyPlus in executable form. You may use the EnergyPlus executable (either the standalone application or the library), combine it with other programs, and redistribute it (as either a desktop application or a web application), for any purpose (commercial or otherwise) free of charge. Use of this license requires that you refer to the specific EnergyPlus version as "EnergyPlus vX." Open source license. For the first time, EnergyPlus is available under an open source license. Under this license, which is modeled after the Mozilla Public License (MPL) V1.1, you may obtain EnergyPlus source code, modify it, combine it with other software that is licensed under different terms, distribute it, and re-license it. The license is "weak copyleft" in that it covers only EnergyPlus and its modifications going forward. Code that is combined with EnergyPlus is not affected. This license requires that you distribute the source code for EnergyPlus modifications and that you refer to the EnergyPlus component of your distribution as "a modified version of EnergyPlus vX." You may remove the "modified" designation by obtaining prior written permission from Berkeley Lab. As with any open source license, there is no fee. Less restrictive commercial source license. The revised commercial source distribution license has been relaxed to permit sub-licensing of proprietary modifications to EnergyPlus. Under this license, you may obtain EnergyPlus source code, modify it, combine it with other software that is licensed under different terms, distribute it, and re-license it. Unlike the open source license, you are not required to make your modified EnergyPlus source code available; you retain exclusive control over these modifications. You are still required to refer to your copy of EnergyPlus as "modified." In the new licensing framework, this is the only license that requires a fee: $10,000 US for the first licensed version and $3,000 for major version updates. Very few scenarios should require this license; the open source license should suit most purposes. The fee attached to this license is intended to encourage use of the open source license, while providing additional rights in cases where they may be needed. Bug fixes, maintenance releases, and minor version releases of EnergyPlus will be made available to existing EnergyPlus licensees at no additional charge on an "if and when available" basis. Obtaining a future major version release of EnergyPlus will require a new license. The licensing scheme and fee schedule is subject to change for future versions. Read more » | |
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Jan 18 |
Refrigerated Cases Data Set update available
Posted by Linda Lawrie on 18 January 2012 11:36 PM
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The Refrigerated Cases Data set that was distributed with the EnergyPlus V7 release was flawed. This file has been revised and is available on the helpdesk: http://energyplus.helpserve.com/index.php?_m=downloads&_a=viewdownload&downloaditemid=112&nav=0 Read more » | |