News

Announcing the gbXML Board of Directors Hybrid Meeting to Coincide with the Live ASHRAE Winter Meeting - February 10, 2025

November 15, 2024

We will be holding our bi-annual gbXML Board of Directors live in Orlando at the ASHRAE Winter Meeting on Monday, February 10, 2025 at 12 pm EST. This will be a hybrid meeting where we will meet live (at the Hilton Orlando, Heathrow (Lobby Level) ) and also allow for virtual participation.

We will be discussing a wide variety of issues including the ASHRAE-funded research project RP-1815, Revit Systems Analysis functionality, new software tools, and more. Here is the Zoom information if you wish to join us:

https://us06web.zoom.us/j/82023646128?pwd=2lwKbnKKFwZXzboavw41KeIbaz36B8.1

Meeting Code: 820 2364 6128

Announcing the gbXML Board of Directors Hybrid Meeting to Coincide with the Live ASHRAE Summer Meeting - June 24, 2024

May 23, 2024

We will be holding our bi-annual gbXML Board of Directors live in Indianapolis at the ASHRAE Summer Meeting on Monday, June 24, 2024 at 12 pm EST. This will be a hybrid meeting where we will meet live (at the JW Marriott Indianapolis, Room 108) and also allow for virtual participation.

We will be discussing a wide variety of issues including the ASHRAE-funded research project RP-1815, Revit Systems Analysis functionality, new software tools, and more. Here is the Zoom information if you wish to join us:

https://us06web.zoom.us/j/87800621749?pwd=pKMFUxXu6Hi5KFbEX24xbXFfbXaDp9.1

Meeting Code: 878 0062 1749

Announcing the gbXML Board of Directors Hybrid Meeting to Coincide with the Live ASHRAE Winter Meeting - January 22, 2024

December 28, 2023

We will be holding our bi-annual gbXML Board of Directors live in Chicago at the ASHRAE Winter Meeting on Monday, January 22, 2024 at 12 pm CST. This will be a hybrid meeting where we will meet live (at the Marriott Marquis Chicago, Algebra Board Room) and also allow for virtual participation.

We will be discussing a wide variety of issues including the ASHRAE-funded research project RP-1815, Revit Systems Analysis functionality, new software tools, and more. Here is the Zoom information if you wish to join us:

https://us06web.zoom.us/j/81365949419?pwd=jnWjDJP9FsZlKNPoGNSHO7jZ2svgNA.1

United States : +16694449171,,81365949419#,,,,*648197# US

Meeting Code: 813 6594 9419

ASHRAE Releases Standard 224 - Standard for the Application of Building Information Modeling

December 1, 2023

For the past 5 years, a team of us (including volunteer ASHRAE voting members M. Dennis Knight, Marcus Fich, Roger Grant, Rob Hitchcock, Ernest Conrad, Craig R. Dubler., and Abe Morris) developed this ANSI Building Information Modeling (BIM) standard geared toward commercial building owners. While this standard does not involve the gbXML schema in any way (except for a mention of gbXML in the informative appendix), it should be of interest to the gbXML community.

Click here for more details.

New Third-Party Tool Works with gbXML

September 21, 2023

xgbXML extends lxml, a Python processor for XML files, to work with gbXML files. It would be entirely possible to work with gbXML files using lxml alone. However xgbXML provides additional methods and features that make working with gbXML much quicker and easier.

Click here for more details.

The Latest Version of gbXML (Version 7.03) Has Been Released

August 8, 2023

The latest version (7.03) of gbXML has been released. It includes 29 updates that better align the schema to Revit Systems Analysis.

Click here for more details.

The gbXML Public Review Period Has Been Extended

July 11, 2023

It's been six years since we last updated the Green Building XML schema. We have extended the deadline for the public review period by 15 days to July 29, 2023.

A 45-day public review period is now open to view and comment on the first set of schema updates (Version 7.02).

Click here for more details.

Announcing a Public Review Period for the First Major gbXML Schema Update in 6 Years

June 14, 2023

It's been six years since we last updated the Green Building XML schema. We are announcing the first in a series of updates to the schema over the next 6 to 9 months due to funding that we have received and requests from various stakeholders.

A 30-day public review period is now open to view and comment on the first set of schema updates (Version 7.02).

Click here for more details.

We'll be Presenting at the ASHRAE Building Performance Analysis Conference in Austin, TX from September 11 to 13, 2023

May 7, 2023

ASHRAE will host the annual Building Performance Analysis Conference September 11-13, 2023 in Austin, Texas. Building performance stakeholders will address the practices of energy modeling and building performance simulation using existing simulation tools, software development and future simulation research and applications.

The team at gbXML.org will be presenting as part of a seminar titled "Occupant Behavior-Centric Building Design and Operation and Its Effects on Building Energy Usage". This seminar will address some of the latest updates on ASHRAE RP-1815, "Integrating Occupant Behavior Data into Building Information Modeling for Performance Simulation". Stephen Roth will give an overview of how occupant behavior affects building energy usage. Jeffrey Ouellette will discuss findings from ASHRAE RP-1815. Finally, Zoltan Nagy of U of Texas will discuss occupant-centric design and operations of buildings.

Carmelsoft Awarded Society of Fire Protection Engineers (SFPE) BIM Research Contract

January 20, 2023

The SFPE Foundation, a charitable organization focused on enhancing the scientific understanding of fire and its interaction with the social, natural, and built environments, announces the funding of research into integration of Building Information Modeling (BIM) for the design, verification, and maintenance of proper fire protection systems in buildings.

The primary objective of the research is to identify opportunities to update and develop new fire protection engineering data repositories that are available to all interested parties, while also identifying interoperability requirements that will help more fire protection engineering software tools better integrate with BIM. In addition, the research aims to identify opportunities for improved toolsets and workflows that integrate with BIM, with the end goal of making it easier for all stakeholders to design, verify, and maintain proper fire safety systems in buildings. Findings of the study are expected to be presented at the SFPE Annual Conference & Expo in Washington DC/Bethesda, in October 2023.

Click here for more information.

BIM and gbXML is Featured in a Seminar at the ASHRAE Winter Meeting - February 5, 2023

November 8, 2022

ASHRAE Seminar 14, Do We Need More Building Information Modeling (BIM) Standards and Guidelines?. There are many Building Information Modeling (BIM) standards and guidelines available these days. This seminar focuses on three specific BIM standards including ASHRAE's SPC-224, National Institute of Building Sciences' NBIMS 4.0, and ISO-19650. Speakers discuss the similarities and differences between them and how they could work together to provide a comprehensive set of BIM standards.

Click here for details about this seminar.

Carmelsoft Awarded ASHRAE Research Contract to Update gbXML Schema to Better Model Occupant Behavior

September 26, 2022

Carmelsoft was awarded a new ASHRAE research project, titled "ASHRAE 1815-TRP, Integrating Occupant Behavior Data into Building Information Modeling for Performance Simulation". The objectives of this research are to research and document how detailed occupant behavior data, related to occupants’ presence, actions, and interactions, can be integrated into existing standard BIM frameworks. The intent is to facilitate the standardized collection of occupant behavior data and the transfer of occupant behavior data from BIM authoring tools to building simulation tools using schemas and standards such as gbXML and IFCs.

Click here for more information.

New Software from Ripcord Engineering Allows for gbXML File Merge

September 16, 2022

This website is meant to process full Revit gbXML input files in XML format: (1) A geometry gbXML based on mass families without windows, (2) A "spaces" gbXML based on detailed elements with windows. The output is geometry from gbXML based on mass families and windows from gbXML based on spaces.

Click here for more information.

New ANSI BIM Standard Available for Public Review

September 9, 2022

ASHRAE SPC-224P, "Standard for the Application of Building Information Modeling", is now out for 45-day public review period where anyone can post comments about the draft.

Here is a link to the ASHRAE Standards webpage:

https://osr.ashrae.org/

Scroll to the bottom of the page, and you'll see the SPC-224 link on the left-hand side. If you click the Comment link, it will take you to a login page (You may need an ASHRAE login. You can always request one without being an ASHRAE member.) that allows you to access the comments page for SPC-224.

Click here to view the PDF document, itself:

New Miscellaneous gbXML Software Tools List

April 1, 2022

Check out the new "Miscellaneous gbXML Software Tools" list on the gbXML Software List webpage. We are constantly adding new miscellaneous gbXML-related software tools such as merge tools, validators, and much more.

Click here and scroll to the bottom of the page.

New Software from abstractBIM Out of Switzerland Now Works with gbXML

January 31, 2022

abstractBIM is a Swiss software company for the global AECO industry. Their vision is to help users design, simulate and build with an automated service that harmonizes architects' and engineers' data. This tool allows users to automatically transform an architectural BIM into a simplified (abstracted) model for simulations. Users can also convert an IFC file to gbXML file.

Click here for more information.

New Software from EDV-Software-Service Out of Austria Now Works with gbXML

January 18, 2022

A new software tool called AX3000 from EDV-Software-Service GmbH now imports/exports gbXML from its flagship software product. It has modules for ventilation, heating, electrical, sprinkler design, energy simulation, and virtual reality.

Click here for more information.

The ASHRAE RP-1810 Final Report is Now Available from the ASHRAE Tech Portal

January 14, 2022

The ASHRAE research project RP-1810 is all about gbXML. It is titled: "Reference BIM Test Cases for Improving Usage of Software Interoperability Schemas". The full 105-page report is available at the ASHRAE Tech Portal, and the accompanying web-based validator is here.

Click here to download the report.

Announcing the gbXML Board of Directors Hybrid Meeting to Coincide with the Live ASHRAE Winter Meeting - January 31, 2022

November 15, 2021

We will be holding our bi-annual gbXML Board of Directors live in Las Vegas at the ASHRAE Winter Meeting on Monday, January 31, 2022 at 1 pm PST. This will be a hybrid meeting where we will meet live and also allow for virtual participation.

We will be discussing a wide variety of issues including the completed ASHRAE-funded research project RP-1810, Revit Systems Analysis functionality, the results of the DOE-SBIR funded research project, the updated gbXML web viewer, and much more. Here is the GotoMeeting information if you wish to join us:

https://global.gotomeeting.com/join/362767461

United States : +1 (571) 317-3116
Canada: +1 (647) 497-9373
United Kingdom: +44 808 178 0872

Access Code: 362-767-461

New Software from Cove.tool Now Works with gbXML

October 25, 2021

A new software tool from Cove.tool (drawing.tool) is a fast, 3D modeling software for rapid prototyping. It translates 3d models from any source into analysis ready geometry. It exports to gbXML, too.

Click here for more information.

Stakeholders from gbXML.org Will be Presenting at the ASHRAE BPAC Conference on November, 9, 2021

October 18, 2021

Join us (virtually) on November 9, 2021 at 1PM MDT where we'll be doing a panel presentation at the 2021 ASHRAE Building Performance Analysis Conference. The title of which is "Data Exchange Mechanisms for Design and Analysis". Click here for more information.

New Software from Carmelsoft imports gbXML

October 2, 2021

Schema Server (beta) is a web-based tool that was developed by Carmelsoft with funding from the U.S. Department of Energy. This tool can import both BuildingSync XML and a gbXML files from any source (including U.S. Department of Energy’s Asset Score Audit Template), perform basic validation using Schematron technology. Additionally, this tool can import additional data for the same building from Energy Star Portfolio Manager and then send it over to a consuming software tool such as ASHRAE Building EQ to receive a building energy benchmarking score.

Click here for more information.

New Software from Cove.tool Now Works with gbXML

September 25, 2021

A new software tool from Cove.tool (loadmodeling.tool) performs web-based HVAC load calculations via your web browser and also exports to @gbXML.

Click here for more information.

We'll Be Talking Interoperability with IBPSA on August 24, 2021

August 15, 2021

IBPSA-USA's Building Data Exchange subcommittee is hosting a webinar related to raising awareness of some guidelines and tools related to building data exchange. The webinar will present the use case of ASHRAE Guideline 20, the use of Schematron for schema validation specifically focused on its use in BuildingSync, and a new development of a Schema Server to better enable transforming and exchanging building data between API-based applications. The webinar will last 60 minutes with time for Q&A.

Click below for more information and to register:

https://www.ibpsa.us/guidelines-and-projects-building-data-exchange-integrity

Recording of the Seminar Featuring gbXML at the ASHRAE Virtual Summer Meeting - June 30, 2021

July 5, 2021

ASHRAE Seminar 15, Development of Reference Building Information Model (BIM) Test Cases for Improving Usage of Software Interoperability Schemas discussed the results of ASHRAE RP-1810 "Development of Reference Building Information Model (BIM) Test Cases for Improving Usage of Software Interoperability Schemas". The key objective of this research project was to develop a series of standardized test cases for BIM and building performance software tool vendors to employ so as to ensure that valid modelling data can be used by other building performance software using gbXML. This research project also included the development of a robust, accessible, web-based validation software tool for simple data validation and basic model checking.

Click here to view a recording of this seminar if you had previously registered for the Summer Meeting.

Ladybug Tools Pollination Workflow Supports gbXML

June 30, 2021

Ladybug Tools Pollination empowers teams to create and share simulation inputs, outputs, logic, and conclusions through one web-based platform. Save time and make better decisions at any stage of a project - from early design through occupancy.

Pollination streamlines the interoperability workflow from Revit to gbXML by using the Pollination Revit plug-in and HBJSON. Click here for more information.

Cove.tool Now Works with gbXML

June 15, 2021

Cove.tool is a software tool platform that automates building data design for daylighting, energy usage, water usage, and LEED-compliance. It can export to many other energy modeling software tool like IES VE , EDSL Tas , Design Builder , CBECC-Com (Title24 compliance), and NREL's Open Studio.

Click here for more information.

Announcing the gbXML Board of Directors Virtual Meeting to Coincide with the ASHRAE Virtual Summer Meeting - June 28, 2021

June 10, 2021

We will be holding our bi-annual gbXML Board of Directors virtual meeting on Monday, June 28, 2021 at 3 pm EST. This will be a 100% online meeting since the live ASHRAE Summer Meeting in Phoenix, AZ was cancelled due to world-wide events.

We will be discussing a wide variety of issues including the completed ASHRAE-funded research project RP-1810, the new Revit Systems Analysis functionality, a new DOE-SBIR funded research project, the updated gbXML web viewer, and much more. Here is the GotoMeeting information if you wish to join us:

https://global.gotomeeting.com/join/671757077

United States : +1 (571) 317-3116
Canada: +1 (647) 497-9373
United Kingdom: +44 20 3713 5011

Access Code: 671-757-077

gbXML is Featured in a Seminar at the ASHRAE Virtual Summer Meeting - June 30, 2021

June 5, 2021

ASHRAE Seminar 15, Development of Reference Building Information Model (BIM) Test Cases for Improving Usage of Software Interoperability Schemas discusses the results of ASHRAE RP-1810 "Development of Reference Building Information Model (BIM) Test Cases for Improving Usage of Software Interoperability Schemas". The key objective of this research project was to develop a series of standardized test cases for BIM and building performance software tool vendors to employ so as to ensure that valid modelling data can be used by other building performance software using gbXML. This research project also included the development of a robust, accessible, web-based validation software tool for simple data validation and basic model checking.

Click here for details about this seminar.

ASHRAE RP-1810 Deliverables are Now Available

June 1, 2021

Click here to view information and deliverables on ASHRAE RP-1810 - Development of Reference Building Information Model (BIM) Test Cases for Improving Usage of Software Interoperability Schemas.

Here's a Recording of the May 19, 2021 gbXML Webinar

May 19, 2021

Click here for the recording of the May 19, 2021 gbXML webinar titled: "A Demo of Common BIM to BEM Workflows Using gbXML and the New gbXML Validator".

A gbXML Webinar Will Take Place on May 19, 2021

April 30, 2021

We will be holding a Green Building XML (gbXML) webinar on May 19, 2021 from 1 to 2 pm EST. This webinar is targeted toward energy modelers, engineers, architects, software vendors, and generally anyone who is interested in learning about BIM to BEM workflows using gbXML and also the new gbXML Validator.

Click below to register:

https://attendee.gotowebinar.com/register/6424831684789868556

We Have Released a Beta of Our New gbXML Validator

February 4, 2021

Click here to view a beta of our new gbXML validator developed as part of ASHRAE RP-1810, "Development of Reference BIM Test Cases for Improving Usage of Software Interoperability Schemas". This is a more democratized validator than our previous ones and will be available for any software developer to use. Feel free to provide feedback here.

Announcing the gbXML Board of Directors Virtual Meeting in Place of the ASHRAE Winter Meeting - February 1, 2021

January 11, 2021

We will be holding our bi-annual gbXML Board of Directors virtual meeting on Monday, February 1, 2021 at 1 pm EST. This will be a 100% online meeting since the ASHRAE Winter Meeting in Chicago, IL was cancelled due to world-wide events.

We will be discussing a wide variety of issues including the new ASHRAE-funded research project RP-1810, the new Revit Systems Analysis functionality, a new DOE-SBIR funded research project, the updated gbXML web viewer, and much more. Here is the GotoMeeting information if you wish to join us:

https://global.gotomeeting.com/join/398009197

United States : +1 (646) 749-3129
Canada: +1 (647) 497-9391
United Kingdom: +44 20 3713 5028

Access Code: 398-009-197

Elite Software Announces New gbXML Import Options into Chvac

December 18, 2020

Click here for a YouTube video describing the latest gbXML import and export into/out of Elite Software's Chvac load calculation software.

Here's a Recording of the November 11, 2020 gbXML Webinar

November 11, 2020

Click here for the recording of the November 11th gbXML webinar titled: "A Demo of Building Analysis and Energy Auditing Software Tools Using gbXML and BuildingSync XML".

A gbXML Webinar Will Take Place on November 11, 2020

October 25, 2020

We will be holding a Green Building XML (gbXML) webinar on November 11, 2020 from 1 to 2 pm EST. This webinar is targeted toward energy modelers, engineers, architects, software vendors, and generally anyone who is interested in learning about EDSL Tas, buildee, gbXML, and BuildingSync XML.

Click below to register:

https://attendee.gotowebinar.com/register/1441478846113874190

Two (2) ASHRAE Research Projects are Referencing/Focusing on gbXML

October 15, 2020

In the latest October 2020 ASHRAE Journal, two ASHRAE research projects are listed that reference or focus on gbXML. Click here for a description of ASHRAE RP-1810, "Development of Reference BIM Test Cases for Improving Usage of Software Interoperability Schemas", and here for a description of ASHRAE RP-1815, "Integrating Occupant Behavior Data into Building Performance Simulation".

gbXML is Featured in a Paper Session at the 2020 ASHRAE Virtual Conference

July 1, 2020

A paper session (Paper Session 10) titled "Building Energy Modeling" will feature a talk by Ruiji Sun of Carnegie Mellon University addressing "Improving the Interoperability of gbXML Data Model through Redefining Data Mapping Rules of HVAC Systems and Internal Loads (VC-20-C019)". Ruiji will address some of the mapping issues between gbXML elements and IDF files.

Here's a Recording of the July 16, 2020 gbXML Webinar

July 16, 2020

Click here for the recording of the July 16th gbXML webinar titled: "New Building Analysis Software Tools and Green Building XML (gbXML)".

gbXML is Featured in a Paper Session at the 2020 ASHRAE Virtual Conference

July 1, 2020

A paper session (Paper Session 10) titled "Building Energy Modeling" will feature a talk by Ruiji Sun of Carnegie Mellon University addressing "Improving the Interoperability of gbXML Data Model through Redefining Data Mapping Rules of HVAC Systems and Internal Loads (VC-20-C019)". Ruiji will address some of the mapping issues between gbXML elements and IDF files.

A gbXML Webinar Will Take Place on July 16, 2020

June 15, 2020

We will be holding a Green Building XML (gbXML) webinar on July 16, 2020 from 1 to 2 pm EST. This webinar is targeted toward energy modelers, engineers, architects, software vendors, and generally anyone who is interested in learning about Trane TRACE™ 3D Plus, Perkin and Will's new SPEED software tool, and gbXML.

Click below to register:

https://attendee.gotowebinar.com/register/482320974334463758

Announcing the gbXML Board of Directors Virtual Meeting in Place of the ASHRAE Summer Meeting - June 29, 2020

June 11, 2020

We will be holding our bi-annual gbXML Board of Directors virtual meeting on Monday, June 29, 2020 at 2 pm EST. This will be a 100% online meeting since the ASHRAE Summer Meeting in Austin, TX was cancelled due to world-wide events.

We will be discussing a wide variety of issues including the new ASHRAE-funded research project RP-1810, the new Revit Systems Analysis functionality, a new DOE-SBIR funded research project, the updated gbXML web viewer, and much more. Here is the GotoMeeting information if you wish to join us:

https://global.gotomeeting.com/join/398009197

United States : +1 (646) 749-3129
Canada: +1 (647) 497-9391
United Kingdom: +44 20 3713 5028

Access Code: 398-009-197

A New Software Tool Integrates with gbXML: OPlus from Openergy out of France

February 15, 2020

OPlus, from France-based Openergy, is a web-based software tool that performs building thermal analysis. (Oubliez les installations compliquées et les simulations qui monopolisaient votre ordinateur ! Oplus vous donne accès à toute la puissance du cloud : simulations en parallèle et travail collaboratif sont accessibles via un simple navigateur web.) Click here for more information.

We Held Our gbXML BOD Meeting at the ASHRAE Winter Meeting in Orlando, FL on February 3rd

February 7, 2020

We held our bi-annual gbXML Board of Directors meeting on Monday, February 3, 2020 at the ASHRAE Winter Meeting in Orlando, FL. We discussed a wide variety of issues including the new ASHRAE-funded research project (RP-1810), the new Autodesk Revit Systems Analysis functionality, the updated gbXML web viewer, and much more. Click here for the minutes:

https://www.gbxml.org/downloads/meetings/gbXMLMeetingMinutes_24.doc

Announcing the gbXML Board of Directors Meeting at the ASHRAE Winter Meeting in Orlando, FL - February 3, 2020

December 15, 2019

We will be holding our bi-annual gbXML Board of Directors meeting on Monday, February 3, 2020 at 2 pm EST at the ASHRAE Winter Meeting in Orlando, FL. We will be discussing a wide variety of issues including the recently completed Georgia Tech research project, the new ASHRAE-funded research project, the new Revit Systems Analysis functionality, the updated gbXML web viewer, and much more. Here is the GotoMeeting information if you wish to join us:

https://global.gotomeeting.com/join/399365533

United States : +1 (571) 317-3116
Access Code: 399-365-533

A New Software Tool Integrates with gbXML: EVEBI from ENVISYS out of Germany

November 30, 2019

EVEBI allows users to perform energy evaluations for residential and non-residential facilities. It also exports required energy certificates. Click here for more information.

Version 2 of TRACE® 3D Plus Now Supports gbXML Import

November 21, 2019

Trane TRACE® 3D Plus is a next generation building design and analysis software program that delivers faster, more accurate results through a seamless workflow that closely aligns with today's building process. TRACE 3D Plus is built on the U.S. Department of Energy's EnergyPlus engine and enhanced with Trane's industry leading expertise to help designers validate and interpret projects with confidence and clarity. Version 2 of TRACE® 3D Plus now supports gbXML import. However, there are limitations that are discussed here.

Visit here for more information on TRACE® 3D Plus.

BIMPort from Talece Displays gbXML Models Inside the Browser

November 5, 2019

The BIMPort web dashboard from Talece is a simple-to-use platform that streamlines the construction design-build delivery process. It allows for BIM collaboration and communication of everyone relevant to the project. The BIMPort platform allows users to display Revit models inside their browser and zoom, pan, rotate, and more. In addition, the gbXML file format is supported so that users can also zoom, pan, and rotate gbXML models.

Visit here for more information.

BHoM from BuroHappold Integrates with gbXML

October 15, 2019

The BHoM (Buildings and Habitats object Model) is a collaborative computational development project for the built environment. It is a collective effort to share code and standardise the data that we use to design, everyday – across all activities and all disciplines.

The whole BHoM project uses an open-source model for project architecture, co-creation and planning. So explore, experiment and contribute to both the source code and the wiki. Sharing and building our code together in this open-source type approach means we can feed off and pool our disparate knowledge, experience and expertise towards a common goal – better design.

Visit here for more information.

Here's a Recording of the September 12, 2019 gbXML Webinar

September 15, 2019

Please click here for the recording of the September 12th gbXML webinar titled: "Green Building XML (gbXML), Revit Systems Analysis, and More...".

Autodesk Revit Systems Analysis Uses gbXML as Key Part of Its Workflow

September 12, 2019

Revit 2020.1 Systems Analysis provides a platform to optimize HVAC systems design and modeling, letting users make data-driven design decisions from the start. Revit is now more integrated with EnergyPlus — the industry’s leading building energy systems simulation engine and OpenStudio SDK. Revit now communicates with OpenStudio using gbXML. For more information, click here.

SPEED from Perkins and Will Integrates with gbXML

September 4, 2019

SPEED (Simulation Platform for Energy Efficient Design) is a web-based and cloud-based energy/daylighting/solar design and simulation platform for early design that Perkins and Will developed for architects enabling a 1-day turn-around from design question to a data-driven design answer. Users can quickly create a project, run shading and solar studies in seconds, run a parametric study with hundreds or thousands of design options on the cloud in a matter of hours including statistical analysis, and interactively visualize the results and compare them against project EUI benchmarks and targets. SPEED works with gbXML by allowing the import of Revit models. Visit here for more information.

A gbXML Webinar Will Take Place on September 12, 2019

August 28, 2019

We will be holding a Green Building XML (gbXML) webinar on September 12, 2019 from 1 to 2 pm EST. This webinar is targeted toward anyone who is interested in viewing the new Revit Systems Analysis, gbXML and Open Studio workflow. Also, the contractor working on the latest ASHRAE research project to improve how software tools integrate with gbXML will discuss their progress so far.

Click below to register:

https://attendee.gotowebinar.com/register/5303404577514890251

Version 17 of the Web-Based gbXML Viewer Has Been Released

August 18, 2019

Please click here to go to the latest version of the free gbXML Spider Viewer called 'Maevia'. It has been updated with a number of new features and bug fixes including:

1. Includes lots of new sample gbXML files for you to test and view
2. Find errors in gbXML files and get them fixed for you with a click of a button
3. Forget unzipping and zipping, Maevia does the work for you
4. Open big files so fast, you won't have time to think
5. Find anything about any data in the gbXML with the click or two
6. Cut sections, create exploded views and add text labels with a click or two
7. Select from dozens of stylesheet themes or you roll your own
8. Use Maevia on your mobile, tablet, laptop and workstation
9. Run Maevia anywhere - local or on server - nothing to download or install
10. Keep your data in your browser - keep you data secure
11. Join BuroHappold, Perkins Will, CJK Engineering, NREL as happy Maevia users

The Web-Based "Autodesk Viewer" Now Displays gbXML Files

July 15, 2019

Autodesk Viewer is a free web-based viewer that supports most 2D and 3D formats including DWG, STEP, RVT, Solidworks, and of course, gbXML. All you need is an Autodesk 360 account. Once you log in, you can upload any gbXML file to view and share. Click here for more information.

Check Out the Latest gbXML e-Newsletter Announcing an Exciting New ASHRAE-Funded Research Project

June 22, 2019

A new gbXML research project has been funded by ASHRAE. It is titled "RP-1810 - Development of Reference Building Information Model (BIM) Test Cases for Improving Usage of Software Interoperability Schemas", and it will help improve BIM to BEM interoperability. Click here for more information.

Announcing the gbXML Board of Directors Meeting at the ASHRAE Summer Meeting in Kansas City, MO - June 24, 2019

June 1, 2019

We will be holding our bi-annual gbXML Board of Directors meeting on Monday, June 24, 2019 at 2 pm CST at the ASHRAE Summer Meeting in Kansas City, MO. We will be discussing a wide variety of issues including the recently completed Georgia Tech research project, a new ASHRAE-funded research project, the new gbXML web viewer, and much more. Here is the GotoMeeting information if you wish to join us:

https://global.gotomeeting.com/join/672556869

United States : +1 (571) 317-3129
Access Code: 672-556-869

BuildSim Cloud from BuildSimHub Integrates with gbXML

May 21, 2019

BuildSim Cloud from BuildSimHub is a cloud-based building energy modeling software that can translate gbXML models into EnergyPlus models for cloud simulations. Visit here for more information.

Version 14 of the Web-Based gbXML Viewer Has Been Released

March 21, 2019

Please click here to go to "Spider", the free web-based gbXML viewer from Ladybug Tools. It has been updated with a number of new features and bug fixes th number of new features and bug fixes that are listed on the home page. Enjoy!

gbXML Seminar at the ASHRAE Winter Meeting in Atlanta, GA

January 16, 2019

At the ASHRAE Winter Meeting in Atlanta, GA, representatives from gbXML and NREL will be discussing 3 different data exchange formats including gbXML, HPXML, and BuildingSync.

A representative from gbXML will give an overview of Green Building XML (gbXML). It is a free and open-source schema that allows building information modeling (BIM) authoring software to transfer its building information to other building analysis software tools. As BIM becomes more widely used, it is vital that information be easily shared between the various software applications from different vendors so that proper building analysis can be performed. gbXML's strength lies in its ability to accurately transfer 3D building geometry and thermal characteristics to be used by energy modeling, HVAC load calculation, and many other types of analysis software.

Click here for more information.

Autodesk Insight Exports gbXML

January 8, 2019

Autodesk Insight is a cloud-based software tool that empowers architects and engineers to design more energy-efficient buildings with advanced simulation engines and building performance analysis data integrated inside Revit. Insight exports energy analysis results to gbXML after initial analysis has been performed. Click here for more information.

gbXML Board of Directors Meeting at the ASHRAE Winter Meeting in Atlanta, GA - January 14, 2019

December 5, 2018

We will be holding our bi-annual gbXML Board of Directors meeting on Monday, January 14, 2019 at 2 pm EST at the ASHRAE Winter meeting in Atlanta, GA We will be discussing a wide variety of issues including the recently completed Georgia Tech research project, the new gbXML web viewer, the upcoming ASHRAE research project, and much more. Here is the GotoMeeting information if you wish to join us:

https://global.gotomeeting.com/join/857292853

United States : +1 (571) 317-3117
Access Code: 857-292-853

Environmental Design Solutions Limited (EDSL) Adds New gbXML Functionality Into Its Suite of Energy Modeling Software

December 1, 2018

Click this link to view the EDSL Tas display ad that describes its latest built-in gbXML functionality.

Spider gbXML Viewer Embedded Into OpenStudio

October 31, 2018

The National Renewable Energy Lab (NREL) has embedded Ladybug Tools / Spider gbXML Viewer Basic into the latest release of OpenStudio. OpenStudio is a cross-platform (Windows, Mac, and Linux) collection of software tools to support whole building energy modeling using EnergyPlus and advanced daylight analysis using Radiance. OpenStudio is an open source (LGPL) project to facilitate community development, extension, and private sector adoption.

Spider gbXML Viewer Basic is younger, smaller sibling of the Ladybug Viewer. Its mission is simply to provide a standalone, interactive 3D visualization of gbXML files that may embedded in any program or HTML web page. Click here for more details.

A Use Case with gbXML and the Johnson Controls Shanghai HQ Project

October 26, 2018

Click here for details on how gbXML was used for a live project involving the Johnson Controls Shanghai HQ. This article also highlights the new gbXML web-based viewer.

Read Our Latest gbXML Newsletter

October 16, 2018

See what's new with gbXML by reading our latest e-newsletter here.

A New Software Tool Integrates with gbXML: eToolLCD from eTool out of Australia

September 20, 2018

eToolLCD is an intuitive, open-use, web-based, whole building life cycle assessment (LCA) and desigth a passion for sustainable buildings. Design focused and performance basedgs. Design focused and performance based, genuinely sustainable outcomes are made easy. Click here for more information.

Representatives from gbXML.org Will be Speaking at the CIDCI Fall Forum 2018 in San Francisco, CA

September 6, 2018

CIDCI (Change in Design and Construction Industry) is a non-profit group that brings together deep thinkers from diverse AEC disciplines and communities to advance change in the design and construction industry. The Fall Forum will take place on September 28th, 2018 in San Francisco, CA. Representatives from gbXML.org will be speaking to the group about Green Building XML. Please click here for more information.

Version 12 of the Web-Based gbXML Viewer Has Been Released

August 30, 2018

Please click here to go to "Spider", the free web-based gbXML viewer from Ladybug Tools. It has been updated with a number of new features and bug fixes th number of new features and bug fixes that are listed on the home page. Enjoy!

We Welcome Two New Board Members to the gbXML BOD

July 18, 2018

We're happy to announce two new members to the gbXML Board of Directors:

Johan Haeberle of IES. Johan is based out of the French office of IES and will be promoting gbXML throughout Europe.

Chris Mackey of Ladybug Tools. Chris is an integral part of Ladybug Tools and has been involved with the development of the free web-based gbXML viewer (Spider) that is part of the Ladybug Tools suite of software.

gbXML Board of Directors Meeting at the ASHRAE Summer Meeting in Houston, TX

June 20, 2018

We will be holding our bi-annual gbXML Board of Directors meeting on Monday, June 25th, 2018 at 2 pm PST at the ASHRAE Summer meeting in Houston, TX. We will be discussing a wide variety of issues including the new Georgia Tech research project, the new gbXML web viewer, and much more. Here is the GotoMeeting information if you wish to join us:

https://global.gotomeeting.com/join/699710485

United States : +1 (312) 757-3129
Access Code: 699-710-485

Green Building XML Hires Georgia Tech University to Further Advance gbXML Validation

June 15, 2018

gbXML has hired Georgia Tech University to perform research associated with the validation of gbXML. The goal of this research is to make the process of exporting and importing gbXML files to and from BIM and analysis software tools much faster and more seamless. Georgia Tech will be performing what is called Level III validation research which focuses on BIM automation.

Check Out Our Latest Web-Based gbXML 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:

https://global.gotomeeting.com/join/699710485

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:

https://global.gotomeeting.com/join/815713757

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

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 Greenved 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 fo 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

The popular 3D modeling software tool, Rhinoceros 3d, has a vast ecosystem of plug-ins, including those that export gbXML. Click here for more info.

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.

gbXML Webinar

September 3, 2015 from 2 to 3 pm EST

"Using Green Building "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.

gbXML Webinar

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.

gbXML Webinar

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.

ftware 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 irectional gbXML-based connection to the SOLAR-COMPUTER suite of calculation programs for buildings (energy analysis, heat load, and cooling load) a/SolarC">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.