Check Out Our Latest gbXML Web-Based Viewer
June 6, 2018
Please click here to go to "Spider", the free web-based gbXML viewer from Ladybug Tools.
Recording of the May 8, 2018 gbXML Webinar
May 8, 2018
Please click here for the recording of the May 8th gbXML webinar titled: "Ladybug Tools and Green Building XML (gbXML): Open Source Tools for Building Analysis".
A New Software Tool Integrates with gbXML: Pleiades from IZUBA energies (France)
April 30, 2018
A new building eco-design software tool out of France now integrates with gbXML. Pleiades performs building energy simulation, thermal loads, and life cycle analysis per French building regulation code. Click here for more information.
Announcing a gbXML Webinar on May 8, 2018 at 1 pm EST
April 17, 2018
We will be holding a Green Building XML (gbXML) webinar titled "Ladybug Tools and gbXML: Open Source Tools for Building Analysis" on May 8, 2018 from 1 to 2 pm EST. Click here for details.
ASHRAE Announces Launch of As-Designed Portion of Building EQ Portal
March 31, 2018
ASHRAE has announced the launch of the As Designed portion of the Building EQ Portal that was developed by Carmel Software (the administrator of gbXML).
Both the In Operation and As Designed evaluations are now available in the Building EQ Portal. The As Designed rating compares potential building energy use to the baseline performance of similar buildings using a simulated standardized energy use model:
1. Based on a building's physical characteristics and systems
2. Independent of occupancy and operating variables
3. Allows comparison of potential energy performance between buildings with very different operational and occupancy profiles
4. Identifies whether a building is achieving the full design potential as compared to actual energy performance as shown in the In Operation rating
5. Models only the candidate building for consistency between the two ratings
6. Applicable to both new and existing buildings.
Check out the live site here.
The ASHRAE Building EQ Portal Now Imports gbXML
January 22, 2018
The recently release Building EQ portal from ASHRAE is now able to import a gbXML file to populate basic building information. ASHRAE's Building EQ Portal provides a quick energy analysis that benchmarks a building's energy performance. Building EQ assists in the preparation of an ASHRAE Level 1 Energy Audit to identify means to improve a building's energy performance including low-cost, no-cost energy efficiency measures and an Indoor Environmental Quality survey with recorded measurements to provide additional information to assess a building's performance. Check out the live site here.
ASHRAE Announces Launch of Building EQ Portal to All 60,000 Members
December 31, 2017
ASHRAE has announced the launch of the Building EQ Portal that was developed by Carmel Software (the administrator of gbXML) to all 60,000 members. ASHRAE's Building EQ Portal provides a quick energy analysis that benchmarks a building's energy performance. Building EQ assists in the preparation of an ASHRAE Level 1 Energy Audit to identify means to improve a building's energy performance including low-cost, no-cost energy efficiency measures and an Indoor Environmental Quality survey with recorded measurements to provide additional information to assess a building's performance. The Building EQ Portal allows users to enter all required data to determine their In Operation (actual) and As Designed (potential) Building Energy Quotient (EQ) Performance Score. Check out the live site here.
The ASHRAE Building EQ Web Portal Has Launched for a Limited Audience
November 1, 2017
The new ASHRAE Building EQ web portal that was developed by Carmel Software (the administrator of gbXML) has launched for existing users of the Building EQ spreadsheets. The Building Energy Quotient (bEQ) is a building energy rating program that provides information on a building's energy use. Check out the beta here.
We will also be hosting a live introductory training webinar on Wednesday, November 8, 2017 at 10 am PST. Contact a representative here for information on this webinar.
New Open-Source Web-Based gbXML Viewer is Now Available
September 13, 2017
Check out this beta of a new web-based gbXML viewer that allows you to view, pan, zoom, and rotate any gbXML file within your browser! Click here to check it out.
gbXML is Co-Sponsoring the IBPSA Building Simulation Conference in San Francisco from August 7 to 9
August 3, 2017
We will see you at the IBPSA Building Simulation Conference in San Francisco on August 7 to 9. This conference will bring together practitioners and researchers from around the world to share information about the state of the art in building simulation tools and applications and to discuss new developments. gbXML will have a booth and representatives from gbXML will be presenting a mini-seminar on the latest updates to the gbXML schema and validation suite.
Welcome Back John Crosby of Bentley Systems to the gbXML BOD
June 27, 2017
At the gbXML BOD meeting in Long Beach, CA, we welcomed back John Crosby of Bentley Systems to the gbXML Board of Directors. John works with Bentley Mechanical and is involved with any gbXML updates to Bentley's BIM authoring tool.
gbXML Board of Directors Meeting at the ASHRAE Summer Meeting in Long Beach, CA
June 22, 2017
We will be holding our bi-annual gbXML Board of Directors meeting on Monday, June 26th, 2017 at 2 pm PST at the ASHRAE Summer meeting in Long Beach, CA. Here is the
GotoMeeting information if you wish to join us:
United States : +1 (312) 757-3129
Access Code: 699-710-485
New Revit Plug-In from Sankom Integrates with gbXML
June 5, 2017
Sankom Sp. z o.o is a company out of Warsaw, Poland. It develops and publishes software supporting the process of building sanitary systems design. The Auditor OZC 6.9 Pro from Sankom is a desktop software tool and Autodesk Revit plug-in that integrates with gbXML. Click here for more information.
gbXML is Co-Sponsoring the IBPSA Building Simulation Conference in San Francisco
May 5, 2017
Green Building XML will be co-sponsoring the IBPSA Building Simulation Conference in San Francisco in August of 2017. This conference will bring together practitioners and researchers from around the world to share information about the state of the art in building simulation tools and applications and to discuss new developments. Representatives from gbXML will be presenting a mini-seminar on the latest updates to the gbXML schema and validation suite.
New Web-Based Software Tool Integrates with gbXML: One Click LCA from Bionova Ltd.
February 2, 2017
A new web-based building life-cycle cost analysis software tool now integrates with gbXML. "One Click LCA" has ready-to-use tools for dealing with many of the most demanding green building analyses including life-cycle costing, materials sourcing credits, climate resiliency, site impacts monitoring, and more. Click here for more information.
gbXML Seminar at the ASHRAE Winter Meeting in Las Vegas
January 25, 2017
Stephen Roth, along with speakers from Autodesk and Bentley Systems, will talk about gbXML and HVAC load calculation software interoperability at the ASHRAE Winter Meeting in Las Vegas on Sunday, January 29th at 11:00 am PST. Click here for details.
gbXML Board of Directors Meeting at the ASHRAE Winter Meeting in Las Vegas
January 15, 2017
We will be holding our bi-annual gbXML Board of Directors meeting on Tuesday, January 31st at 12 pm PST. Here is the
GotoMeeting information if you wish to join us:
United States : +1 (669) 224-3217
Access Code: 815-713-757
Recording of December 7, 2016 gbXML Webinar
December 12, 2016
Please click here for the recording of the December 7th gbXML webinar titled: "Fast Reliable BIM to BEM with gbXML Certification".
gbXML Discussion at San Francisco IBPSA Event
November 28, 2016
Stephen Roth will be discussing what's new with gbXML at the monthly SF IBPSA meeting at Interface Engineering in San Francisco on December 7, 2016 at 6 pm.
Announcing a gbXML Webinar on December 7, 2016 at 1 pm EST
November 16, 2016
We will be holding a Green Building XML (gbXML) webinar on December 7, 2016 from 1 to 2 pm EST. Click here for details.
Greenbuild in L.A.
September 24, 2016
Representatives from gbXML.org will be speaking at the Autodesk booth at Greenbuild in Los Angeles on October 6, 2016 at noon PST. We'll be discussing some of the validation work that we are doing with Autodesk Revit and other Autodesk software tools.
The Newest gbXML Validator is Now Live
September 1, 2016
The newest gbXML validator is now live. It allows software vendors to upload test-case gbXML files created by their software tools and receive feedback on the quality of those gbXML files. Click here to go to the online validator.
The Latest gbXML Test Case Documentation is Now Available
August 26, 2016
We've completed and posted the latest test case documentation used to validate NREL's Open Studio software and soon Autodesk's Revit and Insight 360 software tools. Click here for details.
Over 40 BIM and Building Analysis Software Tools Worldwide Now Support gbXML
August 1, 2016
We've reached a major milestone in the history of Green Building XML:
We are now supported by over 40 building information modeling (BIM) and building analysis software
tools worldwide. This means that these tools can either export or import gbXML files
allowing for the seamless transfer of building information between them.
No other interop schema or software "plug-in" is as widely integrated in the building design space.
Additional software vendors are currently working on adding gbXML integration to their tools. We will keep you posted as they become available.
NREL's Open Studio is the 1st Software Tool to be Validated for gbXML Compliance
July 29, 2016
On July 26th, 2016, the National Renewable Energy Laboratory's (NREL's) Open Studio (OS) software tool was officially validated for compliance with Green Building XML (gbXML). Open Studio achieved this compliance by working closely with gbXML.org to perform specific test cases and update the OS code to pass any test cases that it failed. After 6 months of back and forth, OS was the first software tool declared compliant with gbXML. Members of gbXML and NREL will be presenting at the upcoming SimBuild conference in Salt Lake City to discuss the validation process.
gbXML Welcomes Mike Wolf of Greenheck to the Board of Directors
July 25, 2016
Mike Wolf of Greenheck Fan Corporation has agreed to join the gbXML Board of Directors. Greenheck is known worldwide as the leading manufacturer of air-movement and control equipment. Mike will be able to provide an HVAC OEM perspective to the Board, and we look forward to his participation.
New Desktop-Based gbXML Validator Available (Open-Source)
July 22, 2016
A simple, yet powerful, C#-based generic gbXML validator is now available on GitHub for users to download, tweak, and test their gbXML files against the 6.01 version of the gbXML XSD. This code will become the basis of the generic web-based validator that will be available at a future date. Try it here.
gbXML.org Presenting at SimBuild in Salt Lake City
July 10, 2016
Representatives from gbXML.org will be talking about the NREL and Open Studio test case work at SimBuild in Salt Lake City on August 11, 2016. The ASHRAE and IBPSA-USA SimBuild 2016 is a building performance modeling conference that combines ASHRAE's Energy Modeling Conference and IBPSA-USA's SimBuild into one event.
gbXML Seminar at the ASHRAE Summer Meeting in St. Louis, MO
July 5, 2016
Stephen Roth talked about gbXML and building design software interoperability at the ASHRAE Summer Meeting in St. Louis, MO. Click here for an abridged version of the PowerPoint slide deck that was used during this talk which also included a speaker from Autodesk.
Green Building XML Board of Directors Meeting in St. Louis, MO
June 28, 2016
We held our bi-annual gbXML Board of Directors meeting at the ASHRAE Summer Meeting in St. Louis, MO. We had 14 attendees from various industries including software, manufacturing, and government. Click here for the meeting minutes.
Did You Know That Rhino 3D exports gbXML?
May 15, 2016
Coming Soon: New Swiss-Based Software Tool to Integrate gbXML
April 30, 2016
Software fur Haustechniker, a Switzerland-based company, will release an update to its Win_Ht software in September 2016 that will include gbXML import functionality. Click here for more info (only if you are fluent in German!).
Interesting New Use of gbXML: Helping Intelligent Lighting Fixtures to Self-Report Energy Usage
April 25, 2016
gbXML has been included in the Networked Lighting Control System Specification developed by the Northeast Energy Efficiency Partnerships (NEEP) organization. In a nutshell, the spec mentions gbXML as an acceptable format (schema) for lighting fixtures to self-report energy usage. Click here for more info.
New Software Tool ReluxSuite Now Supports gbXML
April 20, 2016
ReluxSuite is a free lighting planning software tool from Relux Informatik AG. ReluxSuite imports geometric data from gbXML files produced by BIM authoring tools such as Autodesk Revit. Click here for more info.
Recording of April 7, 2016 gbXML Webinar
April 7, 2016
We held a live webinar on April 7, 2016 that was targeted toward software vendors whose tools integrate with gbXML. We talked about gbXML test cases, a validation test suite, and a gbXML rating system. Click here to view a recording.
New Software Tool Called CYPETHERM Now Supports gbXML
March 25, 2016
CYPE is a firm that develops and distributes technical software for Architecture, Engineering and Construction professionals. CYPETHERM Suite is a group of CYPE programs for thermal and energy analysis of buildings in accordance with current national and international standards. The applications that work with the 3D model of the building are integrated into the Open BIM workflow via the gbXML and IFC standards. Click here for more info.
gbXML User Forum and Knowledge Base
March 22, 2016
The new gbXML website includes a user forum and knowledge base with full keyword search capabilities. This is all still a work-in-progress, but you can currently sign up and start posting on the forum: http://community.gbxml.org.
Our New Website is Now Live
March 17, 2016
The new gbXML website is now live with a more modern and responsive user interface. View it on any desktop or mobile device to get all the information you need about Green Building XML.
Announcing a gbXML Webinar on April 7, 2016 at 10 am PST
March 14, 2016
We will be holding the first Green Building XML (gbXML) webinar in over a year on April 7, 2016 from 10 to 11 am PST. Click here for details.
gbXML Funded by U.S. DOE and NREL
December 15, 2015
U.S. DOE and the National Renewable Energy Lab (NREL) fund Phase III of effort to improve gbXML schema. Click here for details.
2015 ASHRAE Energy Modeling Conference
September 30 to October 2, 2015 in Atlanta, GA
Representatives from gbXML and Carmelsoft will be discussing updates to the gbXML schema at the annual energy modeling conference.
gbXML Schema Update
September 18, 2015
The next version of the gbXML schema (6.01) is now available for public review until October 31, 2015. Click here for information on how to view the change log and submit comments.
September 3, 2015 from 2 to 3 pm EST
"Using Green Building XML with Rhino 3D and Grasshopper", Wednesday, September 3, 2014 from 2 to 3 pm EST. Click here to view a recording of the webinar.
Completion of gbXML Phase II
August 31, 2014
At the end of August 2014, we will be hosting a live webinar detailing all of the Phase II deliverables including a new web validator, API, and new software tool integration. Stay tuned...
gbXML Schema Update
August 1, 2014
The latest version of the gbXML schema (5.12) is now available. Click here for details.
gbXML Funded by U.S. DOE and PNNL
December 17, 2013
U.S. DOE and PNNL fund Phase II of effort to improve gbXML schema.
BEDES Kickoff Meeting
December 11, 2013
gbXML representatives attend BEDES Kickoff meeting in Washington, DC. The Building Energy Data Exchange Specification (BEDES) is designed to support analysis of the measured energy performance of commercial, multifamily, and residential buildings, by providing a common data format, definitions, and an exchange protocol for building characteristics, efficiency measures, and energy use.
gbXML Schema Update
November 22, 2013
The latest version of the gbXML schema (5.11) is now available. Click here for details.
Latest Version of Trane TRACE 700 Supports gbXML
November 21, 2013
The latest version of Trane TRACE continues to support gbXML. Click here for details.
Vectorworks Architect 2013 Now Supports gbXML
July 19, 2013
Nemetschek's Vectorworks Architect 2013 now supports gbXML. Click here for the press release.
DIALux 4.9 Now Supports gbXML
July 12, 2013
DIALux 4.9 now supports gbXML. Click here for the press release.
ASHRAE Seminar about gbXML
June 24, 2013
At the summer ASHRAE meeting in Denver, CO, Stephen Roth and John Kennedy will be leading a seminar titled "Advancements in BIM Interoperability Solutions to Aid in Integrated Project Delivery (IPD)". This seminar will include a discussion about gbXML.
gbXML Test Case Documentation Released
June 11, 2013
gbXML test case documentation has been released for general use by BIM vendors. Click here for more information.
gbXML Schema Validator Released
June 7, 2013
Click here to go to the gbXML schema validator.
January 22, 2013 from 1:00 pm to 2:00 pm EST
Click here for a recording of the january 22, 2013 webinar titled "Green Building XML and the New EnergyPlus GUIs" .
gbXML Schema Update
October 25, 2012
The next version of the gbXML schema (5.10) is now available for public review until November 15, 2012. Click here for information on how to view the change log and submit comments.
May 23, 2012
Click here for a recording of the May 23, 2012 webinar featuring demos of Autodesk Vasari and Bentley AECOsim energy simulator.
gbXML Schema Update
January 12, 2012
The next version of the gbXML schema (5.0) is now available for download. Click here for information.
Public Review - gbXML Schema Update
October 17, 2011
The next version of the gbXML schema (5.0) is now available for public review. Click here for information on how to view the change log and submit comments.
A Number of New Software Tools Support gbXML
October 10, 2011
New software from Bentley Systems, E4 Tech, and mh-software GmbH support gbXML. Click here to view a complete software list.
Check out our new YouTube Channel
July 28, 2010
Click here to view a video about optimizing gbxml in autodesk revit mep.
gbXML is the focus of this ConnectPress article about interoperability
July 27, 2010
Click here to view the article.
New Computational Fluid Dynamics (CFD) Software Tool Utilizes gbXML
April 28, 2010
blueAIR is a new computational fluid dynamics (CFD) software tool geared toward the AEC community. Its sole input format is gbXML so that it can easily interact with already existing CAD and BIM applications for building and energy information exchange. Click here for more information.
New Software Tool from Solar Computer Integrates gbXML
March 9, 2010
Solar Computer is the developer of Green Building Information System (GBIS). It is a CAD application that provides a bidirectional gbXML-based connection to the SOLAR-COMPUTER suite of calculation programs for buildings (energy analysis, heat load, and cooling load) and systems. Click here for details.
gbXML Schema Update - Invite to Collaborate
February 12, 2010
We are currently in the process of updating the gbXML schema and will be releasing an update by August 1, 2010.
I have created a Google Docs spreadsheet that will allow interested parties to collaborate on proposed updates. Please email me here if you wish to participate. I will then invite you to view and edit the document.
Seminar at ASHRAE Orlando Meeting
January 26, 2010
Stephen Roth and John Kennedy spoke at an ASHRAE seminar in Orlando, Florida. The seminar, titled "Which BIM Interoperability Schemas Are Most Appropriate for Different Types of Building Energy Design", included talks about gbXML and IFCs. It was attended by approximately 150 participants.
AIA Building Connections
October 26, 2009
Stephen Roth will be speaking on November 2, 2009, at the "2009 AIA Building Connections: The 6th Congress on Digital Collaboration in the Building Industry" in Washington, DC. The purpose of this meeting is to invite those in the interoperability trenches to convene and update each other on their progress and challenges in 2009.
New Website Launched
September 15, 2009
We are excited to announce the new gbXML.org website. It includes such features as sample gbXML files from a wide variety of software vendors and A/E firms, an online forum specific to gbXML issues, update-to-date news and events related to gbXML, current and archived gbXML schemas, a list of generous sponsors, and the ability to donate to help support gbXML.org.
Please visit www.gbXML.org regularly for keep up-to-date information on the latest happenings dealing with gbXML.
Inaugural Webcast a Success
August 12, 2009
The first in a series of gbXML webcasts was held on August 12, 2009. It was presented by members of the gbXML Advisory Board, and it demonstrated how tools for Building Information Modeling (BIM) can integrate with various analyses software, using the interoperability of gbXML to help create more sustainable building designs. Almost 200 people attended the live webcast and many more have requested archived recordings. Please stay tuned for future gbXML webcasts.
gbXML.org is Now a Non-Profit Organization
July 31, 2009
Green Building XML is now a California non-profit organization with a Board of Directors and small management team. The official name of the corporation is "Open Green Building XML Schema, Inc." or "gbXML.org". By becoming a non-profit, we can now better promote the gbXML schema, raise funds, and develop software to aid software firms in developing tools that better integrate gbXML.