IBPSA USA – SF Chapter Event – Weather Data and Future Climate Impacts

Location: NORESCO: 475 Sansome St, Suite 500, San Francisco, CA 94111

6 pm to 6:30 pm – Networking
6:30 pm to 7:45 pm – Presentation
7:45 pm to 8 pm – Questions

IBPSA-USA San Francisco Chapter welcomes all to the April 2016 event – Weather Data and Future Climate Impacts.

Ben Brannon – Arup
Benjamin is a professional engineer and building physics specialist. He leads the Arup San Francisco energy modeling skills with an emphasis on computational analytics of non-traditional building design.

Weather files consist of hourly times series of weather variables for a typical year based on historical observations, and are widely used for modeling energy use and human comfort in the built environment. However, since they are based on historical data, they are increasingly inaccurate tools for estimating the future performance of buildings and communities, especially those with life times exceeding 30 years. To address this shortcoming, “morphing” techniques derived from those described by Belcher et al have been used to transform the historical weather file data based on changes, or offsets, in the monthly averages of several climatic variables between a baseline period and a future period, for an ensemble of climate projections. The Weather File Module of the WeatherShift tool provides an intuitive user interface that allows the user to select a city, emissions scenario, future time period and warming percentile to obtain a projected weather file reflecting a plausible future climate.

Neil Bulger – Integral Group
Neil Bulger is a Principal at Integral Group where he leads the building performance team. He has worked on several NZE projects and provides energy, comfort, and optimization solutions.

Neil will present on some of the multi-family projects Integral has participated in where climate data and future climate data where key drivers for façade and mechanical system impacts. The projects will go over how to use simple models with morphing weather data.

Liam Buckley – IES VE
Liam Buckley will present on the various climate tools within IESVE. They include Customization of Weather Variables; Psychrometrics, Mahoney Analysis, Simulation Weather vs Design Weather, and more.

About the Host:
NORESCO’s Sustainability Services group offers a full suite of sustainable design consulting services, including energy auditing, commissioning and retro-commissioning, energy & daylighting analysis, LEED® certification consulting, and sustainability master planning. Their San Francisco office specializes in energy code research and analysis and has a long history of working with the California Energy Commission, the California utilities, ASHRAE, and the DOE National Laboratories. In California, NORESCO is currently providing support to the CEC to advance the state’s energy code, Title 24, to increasingly higher levels of energy efficiency. Additionally, NORESCO is actively involved in the ASHRAE Standards development process and has written numerous editions of the 90.1 and 62.1 User’s Manuals.

Please RSVP Dimitri Contoyannis (dcontoyannis@noresco.com) if you are planning to attend in person.

Registration URL: https://attendee.gotowebinar.com/register/758727168480241665
Webinar ID: 128-891-779


June 6 & 7, 2016
8 am to 5 pm both days

Location: PG&E Pacific Energy Center, 851 Howard Street, San Francisco, CA 94103

EnergyPlus is an energy modeling software program developed by the US Department of Energy. This two-day training on EnergyPlus for experienced modeling practitioners is led by Big Ladder Software, which is part of the EnergyPlus development team. Registration is through Big Ladder Software and requires a fee of $795.

See Big Ladder Software’s description of the class below.

In this two-day workshop we focus on the needs of the energy modeling practitioner in order to get you up to speed and highly productive with EnergyPlus as quickly as possible. We cover the fundamentals of EnergyPlus such as geometry and internal loads while rapidly ramping up to advanced topics such as HVAC systems and controls. We guide you through the complexities of the EnergyPlus syntax, input/output files, documentation, and essential software tools including the OpenStudio (legacy) plugin for SketchUp. Most importantly, we teach you how to use the available resources to teach yourself going forward. Demonstrations and hands-on exercises are used extensively throughout. By the end of the workshop, you should be comfortable with creating, running, and debugging EnergyPlus models.

We have developed our training materials from scratch over a period of several years based on our extensive experience using EnergyPlus to model real-world projects and helping others to do the same. This workshop should be a prerequisite for anyone planning to work with EnergyPlus regardless of what user interface you choose.

Visit the Big Ladder website to learn more about our training philosophy. http://bigladdersoftware.com/projects/energyplus/training.html

We respect your privacy. Please review our privacy policy for more information.


Oct 27th: ASHRAE Energy Modeling Conference Re-Cap

On October 27th, in WSPs San Francisco office, IPBSA-San Francisco

When: Tuesday, October 27 2015, 6:00 PM


Location: WSP Parson Brinckerhoff, 405 Howard Street, Suite 500, San Francisco, CA 94105


  • 6 pm to 6:30 pm – Networking
  • 6:30 pm to 7:45 pm – Presentation
  • 7:45 pm to 8 pm – Questions

IBPSA-USA San Francisco Chapter welcomes you all to the October 2015 event.

On October 27th, IPBSA USA-San Francisco Chapter will host a mini-recap event from the recent ASHRAE Energy Modeling Conference, and will host revised version of the ASHRAEs flagship event – the Lowdown Showdown where a number of practitioners presented with their simulation tools of choice, on a Zero-Net Energy design that encouraged creativity & innovation, through energy modeling.

  1. Team Autodesk – Stephanie Egger
  2. Team EnergyPlus – Julia Beabout
  3. Team IES – Anna Osborne (Integral Group), Ben Brannon (Arup), Megan Gunther (AEI)

Please RSVP Judhajit (Jude) at jude.chakraborty@wspgroup.com if you are planning to attend in person.


Registration URL: https://attendee.gotowebinar.com/register/208782234853496065

Webinar ID: 149-666-139


Title 24 2013 How Practitioners Are Managing

Mid April, we hosted a discussion with local members of IBPSA on Title 24 2013 and the changes in place for software and permit submission. Those who are aware of the changes that took place at the end of March are well aware, others may only be hearing about this through Architecture and Engineering affiliates and friends.

The IBPSA San Francisco meeting focused on Title 24 and experience to date for commercial building compliance, documentation, and permit submission. The goals were to discuss problems and any success stories in utilizing the new softwares available and establish any consensus for best practice or best ideas to try.

The discussion followed the following topics, past experience, any future plan, short term and long term goals for Software Usability, Permit Completion, and Submission and Review processes. We had a host of attendees from the major bay area engineering and consulting firms who shared how they have been adapting, what software they are currently using and any issues or ideas.

Here is a copy of the notes and plans by each company who attended:

Title 24 2013 IBPSA Discussion Notes 04-27-2015

Below are some resources on FAQs for software help, both from IES and CBECC-Com, as well as example documents on permit completion from San Francisco planning department documenting what sheets are needed when.

General Take-Aways from the Meeting

  • Takes two to ten times longer compared to Energy Pro old version! And two models instead of one. Version 4 LEED hasn’t accepted Title 24 equivalence yet so you need two versions.
  • Any additional points you get for CalGreen checklist they are allowing you to submit for LEED points.
  • The software and the speed of changing things is extremely slow with CBECC-COM.
  • The only way to get savings is in lighting or hot water. There is no savings in the envelope.


NORESCO (developers of CBECC-COM)

  • Do exceptional calculations from CBECC-COM by creating an EnergyPlus model from the IDF file from CBECC-COM. Script heat recovery for example in the IDF file, run it again in CBECC-COM as an exceptional calculation. Submit this to the CEC for exceptional calculation method. Exceptional calculation can also be created in IES.
  • 10 MB is a size limitation on CBECC-COM – output file size limitation
  • CBECC-COM – Version 3b –
    • Accepts larger file sizes
    • Better form generation than v3
    • Change in how unmet load hours are treated
    • Ventilation calculations are corrected
  • CBECC-COM – Version 4 –
    • heat recovery system and chilled beam
    • Late Summer 2015
    • They need more error messages in the log file (SEE their website for more information)


  • Check Title 24 FAQs on the website – iesve.com/softare/tilte24/tilte-24/faqs
  • 5% of IES queries are Title 24 related. Of that 85% iesve could work out, 15% were coordinated with CBEC-COM. Errors are 69% which is unusual, usually about 5%. HVAC is most common error (30%), installation (26%) (which version of which software) you can only use Version 3 if using IES-VE, Envelope (16%), Geometry (11%).

April 20th Title 24 for Practitioners Free Event

IBPSA USA San Francisco Chapter is partnering with the PG&E Center on a current “hot topic”-one of a kind live discussion about the Nonresidential 2013 T-24 code-please see more info below.

where: PG&E Center, 851 Howard St., San Francisco CA 94103

when: Monday, April 20th, 4-6pm PST.

Everyone is invited to join in person or via the got web meeting:


Please respond directly to me and cc Bill Burke at the PG&E Center (WxB0@pge.com) if you are planning to attend in person so we provide proper accommodations for everyone.

“Title 24 compliance modeling paths and software have undergone major changes with the 2013 Energy Standards. These changes have created considerable confusion among building professionals and new challenges for energy modelers. What is actually required under the 2013 Standards? What software is approved for compliance? What are the various capabilities of different approved software? How have experienced modelers implemented new steps and processes, changing their work flow to assess loads, design systems, and document compliance? Design and energy modeling practitioners will describe and discuss their workflow under the 2013 Standards, sharing their experiences of what’s worked and what has not. Come prepared to ask questions and share your own experiences in what should be an informative discussion!”

Looking forward to your participation!

Neil Bulger


March 19. LNBL Commercial Building Energy Saver Tool Workshop  


Lawrence Berkeley National Laboratory, in partnership with the Bay Area Climate Collaborative, invite you to join them on March 19th, 1pm3pm to launch the Commercial Building Energy Saver (CBES), part of Lawrence Berkeley National Laboratory’s Small and Medium Building Efficiency Toolkit and Community Demonstration Program.

Date/time: March 19th from 1pm-3pm
Location: Bldg 15, Room 253 on the LBNL campus.

Your response is requested by March 13th.  Please register here.

Note that remote participation will be available.

Also, if any of your colleagues may be interested in attending this event, please feel free to extend this invitation to them. We hope you can join us!

Please contact Gari Kloss (510) 486-2763mkloss@lbl.gov for questions

Feb Meeting:Commercial Building Energy Saver Tool Kit by LBL

If you are in San Francisco on Feb 17th, please join us in person or via the goto webinar registration below:

CBES (Commercial Building Energy Saver) Tool Kit by LBL

  • When: Tuesday, February 17, 2015 at 6:00pm
    Location: Alfa Tech San Francisco Office
  • One Post Street, Suite 2200
    San Francisco, CA 94104
  • PHONE 415-403-3000
    6 pm to 6:30 pm, Networking
    6:30 pm to 7:45 pm, Presentation
    7:45 pm to 8 pm, Questions

Please register for IBPSA-USA San Francisco Chapter October Event on February 17th, 2015 6:30 PM PDT at:

IBPSA-USA San Francisco Chapter welcomes you all to the February 2015 event.

This month we are very excited to have Mary Ann Piette and Thianzhen Hong from LBL (Lawrence Berkeley Lab) to present about their new CBES performance analysis tool-see attached flyer for more info its main features like Energy Star and Energy IQ Benchmarking, retrofit analysis via E+ engine, third party retrofit comprehensive apps development, the PIER Program, three levels of audits, 100+ ECMs, cost analysis and much more.

Speakers bios:
Mary Ann Piette is a Staff Scientist and the Director of the Building Technology and Urban Systems (BTUS) Division of LBNL. She is also the Director of the Demand Response Research Center (DRRC).  The DRRC develops DR technology and the Open Automated Demand Response standard, which is a key element of the NIST Smart Grid standards. Ms. Piette develops and evaluates low-energy and demand response technologies for buildings.  She specializes in commissioning, energy information systems, benchmarking, and diagnostics.  In 2006 Ms Piette received the Benner Award at the National Conference on Building Commissioning for contributions to making commissioning “business as usual”. Ms. Piette completed her undergraduate work at UC Berkeley in Physical Science.  She has a Master’s of Science Degree in Mechanical Engineering from UC Berkeley and a Licentiate in Building Services Engineering from the Chalmers University of Technology in Sweden.
Tianzhen Hong is a Staff Scientist and Deputy Leader of the Simulation Research Group of the BTUS Division at LBNL. He is leading the EnergyPlus development at LBNL, a co-Operating Agent of the IEA EBC Annex 66 on occupant behavior research, and a member of the IBPSA-USA board of directors. His research focuses on innovative methods and tools to advance energy modeling and data analytics, supporting low-energy design, operation, and retrofit of buildings. Mr. Hong has a PhD and BEng in HVACR and a BSc in Applied Mathematics from Tsinghua University, China.

If you are planning to attend in person, please RSVP Nikola Kravik atnkravik@willdan.com  (no later than Monday, February 16th; it’s for building security entrance/checklist of attendees)

Nov IBPSA Meeting [Dec 2nd]

Hello bay area IBPSA community! For our November meeting we are a little behind the ball and will be gathering on December 2nd! Please join us for a conversation and collaborative discussion about Title 24 2013 non-residential performance modeling in practice, what is working, failures, workarounds and lessons learned. Topics will range from the requirement to achieve 10% over Title 24 2013 for LEED Midrise or GreenPoint Rated to the new software programs CBECC-COM and IES.

Anna Osborne from Interface Engineering has graciously offered to host and put forward this topic. She will help introduce the discussion and we hope to make this an open dialog between attendees. So please bring your knowledge and ideas. As a community of engaged practitioners, we can be a powerful voice to recommend steps the CEC should consider and implement to make all our lives easier.

When: December 2nd 6:00 pm, meeting to begin at 6:30 pm
Where: Interface Engineering Inc, 717 Market St. San Francisco, CA 94103
RSVP With: Anna Osborne, annao@interfaceeng.com

IBPSA-USA-SF: Occupant Behavior Annex 66 VIDEO

Hi everyone!

A few months back we had the opportunity to hear from Tianzhen Hong from LBNL on what the Annex 66 project is up-to with regards to occupant behavior and setting a standard definition for a simulation methodology. It was a great discussion and we are pleased to now post the entire event here for you to all enjoy.

About the Event: Tianzhen Hong, Scientist at Lawrence Berkeley National Laboratory (LBNL), Berkeley, California will be presenting about Annex 66 , a global project which aims to set up a standard occupant behavior definition platform, establish a quantitative simulation methodology to model occupant behavior in buildings, and understand the influence of occupant behavior on building energy use and the indoor environment.

Tianzheng Hong is a Co-operative Agent and a subtask leader of the Annex 66 project.

OCT EVENT: Autodesk’s New Building Performance Analysis Tool


When: Tuesday, October 28, 2014 at 6:00pm
Location: Affiliated Engineers, Inc. 123 Mission St, 7th Floor, San Francisco, CA 94105

6 pm to 6:30 pm, Networking
6:30 pm to 7:45 pm, Presentation
7:45 pm to 8 pm, Questions


Please register for IBPSA-USA San Francisco Chapter October Event on Oct 28, 2014 6:15 PM PDT at:


IBPSA-USA San Francisco Chapter welcomes you all to the October 2014 event.

This month we are excited to have David Scheer from Autodesk to present about their new building performance analysis tools.

Autodesk has had a busy year with intensive investments in building performance analysis tools to integrate information into the Architect’s design process, make the job of the professional analyst easier and more consistent by automating tedious tasks, and to create an seamless environment where designers and technical consultants can collaborate more easily.

At this presentation, David Scheer, Sr Product Manager for BPA Integration, will discuss a number of new and improved tools from Autodesk in 2014 and 2015, including Lighting Analysis for Revit, a plugin that helps to automate and speed up the processes of generating valid and useful daylighting analysis results; Solar Analysis for Revit, a plugin that brings the Vasari solar radiation tool and a new, NREL validated algorithm to Revit;  automated EAM (Energy analysis Model) creation from a standard revit architectural model; and Solon Dashboards, RunSets and Energy Cost Range tools, bringing powerful analysis results to the architect like 2030 benchmark, sensitivity results, and interactive parametric tools that can be customized in a collaborative work environment for architects and analysts.

Please RSVP Chris Hughes at chughes@aeieng.com if you are planning to attend in person.