CalBEM’s purpose is to empower California’s building energy modeling (BEM) community to identify, explore, and prioritize the challenges they share, and then support solutions to those challenges to help to promote low-carbon buildings.
Thank you for joining us at…
CalBEM 2O25
The 10th California Building Energy Modeling Symposium
November 19-20, 2025
Kimpton Sawyer Hotel, 500 J St, Sacramento, CA
No registration fee
Note: Registration allows for virtual or in person attendance, however, virtual attendance only includes access to the Working Group breakout sessions. Join us in person to see our fantastic speakers.
See the full list of speakers & presentations
In-person attendee details
CalBEM 2025 is gearing up to be an exciting event! As usual, we’ve lined up engaging in-person presentations:
Keynote
Dr. Eric Fournier, UCLA Institute of the Environment & Sustainability
Achieving Building Decarbonization Through Large-Scale Data Analytics
Eric Fournier is the research director at the California Center for Sustainable Communities (CCSC) – a research center housed within UCLA’s Institute of the Environment and Sustainability. Over the past decade, he has led work on grant-funded research projects for a variety of state agencies (CEC, CARB, CPUC, SGC, LADWP, etc.) focused on building decarbonization and distributed energy resources adoption.
In his keynote address, Eric will discuss several emerging challenges related to the implementation of California’s decarbonization initiatives whose solutions implicate the marriage of large scale building energy datasets with advanced building energy modeling techniques.
Plenary
Mike Sokol, Director, Efficiency Division, California Energy Commission
Affordability and Equity in California’s Energy Future
Additional Presentations
Panel: Leveraging Real-World Data and Energy Modeling to Put Building Performance Standards Into Practice
Harshika Bisht, City of Boston
Heather Rosenberg, Arup
JoAnna Saunders, CEC
Dr. Ladan Ghoban, ENERlite Consulting Inc.
Moderator: Gabriel Taylor, CEC
Special Topic Presentation: 2028 Title 24, Part 6 LSC Factor Updates
Fangxing Liu, E3
Special Topic Presentation: The Future of HPWH Equipment Modeling
Neal Kruis, Big Ladder Software
Conversation Catalysts
Four 15 minute presentations with Q&A to seed conversations and Breakout Session discussion.
- 2025 California Building Energy Compliance Software Update
- Nikhil Kapur, California Energy Commission
- From Data to Action: Equitable Home Energy Labeling at Scale
- Mudit Saxena, XeroHome
- Towards BEMGPT: Fine-Tuning Large Language Models for Building Energy Modeling Education and Training
- Dr. Liang Zhang, University of Arizona
- Growing the Pipeline for Building Performance Simulation in the Age of AI
- Dr. Kyle Konis, University of Southern California
California Prototypes Development Update
Rahul Athalye, NORESCO
Power Talks
CalBEM’s 5 minute lightning talks:
| Lab Testing of PCM in Envelope Replicated in Compliance Modeling Liam Buckley, IES Ltd. | Capturing the Value of BEM Data for Policy and Programs Ben Lalor, NORESCO |  |
| Laboratory Demonstration of Advanced R744 Heat Pump for Simultaneous Heating and Cooling Rongxin Yin, LBNL | Energy Modeling for Reach Codes Measure Development and Cost-Effectiveness Analysis Shannenia Sumawan, TRC | Air Source Heat Pumps: Indirect Coverage and Right Sizing while Maintaining Thermal Comfort Afshin Faramarzi, TRC |
| Compliance, Conservation and Code: Using BEM for Market Transformation Luke Morton, Morton Green Building |  | Education Roadmap for IBPSA-USA Michael Sawford, A2 Efficiency |
| Front Door to MIDAS: A New Tool to Explore Utility Rates in California Matt Zebiak, 2050 Partners | CalBEM QA/QC Data Visualization Project Greg Collins, Zero Envy | How Energy Code Ace is Supporting Electrification Nick Brown, Build Smart Group |
| Performance Trade-off Method for Life Cycle Equivalency Jon McHugh, McHugh Energy | Using Video Game Graphics and Scanning Technologies to Capture Building Geometry Russell King, Coded Energy | CBECC GitHub Migration – Project Update Rob Guglielmetti, NORESCO |
Find our full agenda with timing here.
What is CalBEM?
CalBEM (California Building Energy Modeling) is a stakeholder collective and an annual statewide event hosted by Southern California Edison on behalf of the California Investor-Owned Utilities. CalBEM collaborates to identify and pursue systemic solutions in building energy modeling that advance California’s climate action goals. CalBEM participants come together each year at the annual Symposium to join interactive collaboration sessions and learn from energy modeling leaders across CA. Workshop sessions will cover each of CalBEM’s three Working Groups: Streamline & Simplify Processes, Educate Users, and Improve Capabilities & Accuracy.
Read more about CalBEM’s core goals and what the Working Groups are up to these days.
Find past event materials, including slides, videos, and more!
You can access past meeting materials on the CalBEM Records page.
Sign up for our mailing list below to get notified about event updates and other high-level announcements, or join a specific Working Group to get into the details.