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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 promote low-carbon buildings.

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Find the detailed agenda here and highlights below.

Click here to read more about Brittany Moffett

Brittany Moffett is a Senior Resilience Engineer with Arup, where her work includes climate resilience, building decarbonization, and building performance standards. Drawing on her background in building envelope engineering, structures, architecture, and building physics, she helps clients understand building vulnerabilities and identify strategies that strengthen the adaptive capacity of buildings and communities. Her experience includes hazard and vulnerability assessments, resilience planning, and evaluating the social benefits of measures that support affordable housing and community well-being. Brittanyholds a bachelor’s degree in civil engineering and a master’s degree in building science from the University of Southern California.

Click here to read more about Commissioner McAllister.

Andrew McAllister was first appointed to the California Energy Commission in 2012, and in 2022 was reappointed by Governor Newsom to a third term. Commissioner McAllister’s priorities include: decarbonization of buildings and industry; energy efficiency of buildings and appliances; load flexibility as a tool for grid optimization; improving access to data and analytical tools that can drive innovation at the grid edge; alignment of energy and housing policy & programs; and amplifying California’s innovation-centered approach through collaboration with diverse partners beyond its borders. 

Commissioner McAllister has worked in the utility, energy efficiency and renewable energy spaces for more than three decades. Prior to CEC he served as managing director of a California-based clean energy non-profit; energy efficiency and renewable energy specialist at an international development organization; utility energy efficiency program consultant; and researcher at a DOE national laboratory. He has worked in numerous countries to deploy clean, cost-effective energy solutions partnering with counterparts ranging from tiny remote communities to the largest of utilities. 

Commissioner  McAllister is past board chair of the National Association of State Energy Officials and the Western Interstate Energy Board. He also serves on the boards of the Smart Electric Power Alliance, the Dartmouth Irving Institute for Energy and Society, and Camp Kesem at UC Davis. He holds M.S. and Ph.D. degrees from the Energy and Resources Group at the University of California, Berkeley, and a B.A. from Dartmouth College. He served as a U.S. Peace Corps volunteer. 

Conversation Catalysts

Four 15 minute presentations with Q&A to seed conversations and Breakout Session discussion

• The Real Life of a CASE Measure: Follow the Journey of Master Mixing Valves from Conception to Software Release
  • Amin Delagah, TRC, with Haile Bucaneg, CEC, and Neal Kruis, Big Ladder Software 

• From Compliance Models to Compliance Checks: Identifying High-Value Residential Energy Code Measures Using Compliance Data
  • Ria Majumder, California Energy Commission

• From EnergyPlus to CBECC: The IDF-to-CIBD Translator, and What CBECC Taught us Along the Way
  • Nasim Mirian, NORESCO, with Rob Guglielmetti, NORESCO

• IBPSA-USA Education Initiatives
  • Dimitri Contoyannis, Model Efficiency

Panel

Raising the Ceiling – From Models to Measurable Value in California Homes

Panelists:

• Ryan Blowers, ReMo Homes
• Bronwyn Barry, Passive House BB
• Mudit Saxena, Xero Home
• Moderator: Dr. Kyle Konis, Agile Environments

Compliance sets the floor; this panel is about raising the ceiling. Panelists will explore how efficiency moves from modeled savings to value Californians can measure: in financing and asset value, in healthier and more resilient homes, and in performance insights that help existing homeowners plan ahead. The discussion also considers how tools built around the minimum can better recognize homes that go further.

Workshop

Reimagining Energy Code Compliance Workshop: Building the Technical Infrastructure for the Future

• Daniel Wong, CEC
• Geffen Oren, Arup
• Marina Chavez Blanco, Gabel Energy
  

This interactive workshop invites practitioners to explore what the future of energy code compliance could look like across near-, medium-, and long-term horizons. Through facilitated discussion and audience engagement, participants will help stress-test ideas such as more modern machine-readable compliance data, automated routine checks, energy model transparency, and the role of software and AI in future compliance ecosystems.

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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.

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Catch up on CalBEM 2O25

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