Dear Load Manager,Flexible Buildings Need Flexible PeopleImagine two neighbors participating in the same demand response event. Their thermostats are both lowered by 2°C (about 4°F) during a winter peak period. One never notices. The other immediately overrides the setting and wonders whether to leave the program altogether.The difference isn’t the house. It’s the occupant.While demand response can involve many flexible…

Our mission… To equitably protect and empower consumers and workers while maintaining a predictable yet innovative regulatory environment for the businesses we regulate. The Department of Consumer and Business Services (DCBS) is a progressive business regulatory state agency dedicated to the mission of protecting and serving Oregon’s consumers and workers while supporting a positive business climate. The department administers state…

Dear
Load Distributor,Great question. If you want to save as much energy as possible, you’ll want to run your heat pumps at their most efficient point, and that point isn’t necessarily at full load. We measure that efficiency with the coefficient of performance (COP): the ratio of useful heat delivered to electricity consumed, so the higher the better. The key fact,…

SimBuild 2026: Bridging Research and Practice IBPSA-USA members and building performance simulation practitioners, software developers, and students met to share knowledge and insights at SimBuild 2026. Held at the Minneapolis Hyatt Regency on May 20–22, SimBuild 2026 drew over 250 attendees from across the United States and around the globe. The three-day event was headlined by keynotes from industry leaders…

Company: LockedIn AI Employment Type: Full-Time Work Model: Remote (US-Based) · Optional Hybrid (New York, NY) Compensation: $120,000 – $175,000 USD / year Reports To: Co-Founder / CEO About LockedIn AI LockedIn AI is a leading real-time AI interview and meeting copilot trusted by over 1 million users worldwide. We are building the most advanced AI-powered career preparation ecosystem, helping…

What are the key features that ensure the accessibility and scalability of decarbonization road-mapping tools, particularly in resource-constrained environments? -Decarbonization Enthusiast Dear Decarbonization Enthusiast, I presented at SimBuild 2024—born out of frustration, or perhaps hope for better decarbonization tools—a talk titled “A Decarbonization Road-Mapping Tool for All: Can It Be Open-Source and Low Tech?” I explored whether the essential features…

What contextual elements are most critical for enhancing the performance of large language models in building energy simulations?- Wondering Dear Wondering, Large language models, or LLMs, have quickly become part of everyday technical conversations. At their core, they are neural network based models trained on massive text content to generate responses by learning semantic patterns. They are moving from novelty…

IBPSA-USA Awards 2026 IBPSA-USA awards are presented every two years at the IBPSA-USA SimBuild conference. This year’s conference is being held in Minneapolis, Minnesota, May 20—22, 2026. Awards will be presented at the conference. Please take time to recognize, and nominate, your colleagues and industry partners. Nominees can be IBPSA-USA members or can be active member(s) in the building performance and simulation…

We offer on-call support and consultancy services for EnergyPlus, the California Simulation Engine (CSE), and their interface tools (e.g., OpenStudio, DesignBuilder, CBECC, CBECC-Res). We can create the entire model for you, provide feedback and guidance as you build the model, or help with QA/QC processes near the end of the project.

What are the most significant advantages of integrated control strategies over local controls for heat pump and PV system performance? -Building Optimizer    Dear building optimizer, When controlling building systems, relying solely on local, real-time information is common practice, but it severely limits efficiency. This approach is like driving your own car while looking only at the road ahead of…

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IBPSA-USA Student Ambassador Become a Leader on Your Campus and in the Building Simulation Community As a Student Ambassador, you’ll have the opportunity to develop leadership skills, connect with peers and industry professionals, and make a real impact on your campus community. You’ll play a key role in introducing your peers to IBPSA-USA, sharing opportunities for learning, networking, and professional…

As climate conditions shift, how should energy modeling tools evolve to better address transient thermal comfort conditions in warming climates?-Seeking information Dear Seeking,As global warming intensifies, achieving thermal comfort becomes increasingly challenging.  In many areas, it’s becoming increasingly common for temperatures to exceed what we’d consider comfortable, placing heat stress on pedestrians and exposing populations to greater health risks. These conditions…

2026-2028 Nominees – Board of Directors Rashmi BaligaJLLResume ↓ Brief message to voters about your current role and activities in Building Performance Simulation and why you would be a good choice to serve on the IBPSA-USA Board I am a Project Manager in JLL’s Climate and Decarbonization Services team, where I use building performance simulation, data analytics, and visualization tools…

Support IBPSA-USA IBPSA-USA exists to advance building performance simulation and help the industry design better, more energy-efficient, and more comfortable buildings. Your support helps us keep this work going and growing.When you donate, you are directly supporting the community of practitioners, researchers, students, and emerging professionals who use building simulation to tackle real-world problems.Why Your Donation Matters Your contribution helps IBPSA-USA:Grow the…

2026-2028 Board of Directors Nomination Form

IBPSA-USA is now accepting applications for the annual Board of Directors election for the 2026-2028 term.    The Board of Directors plays a vital role in connecting with the diverse communities and organizations that IBPSA-USA serves. These voices are essential for shaping the organization’s future. It is crucial for the IBPSA-USA Board of Directors to consist of enthusiastic members who…

As an IBPSA-USA member, your VOTE can shape the future of building simulation, making it easier, better, and more impactful for all. Read about the six finalists below and vote for your two most preferred proposals.    Proposal 1: Scaling Deep Retrofits: A Platform to Automate Cost-Performance Analysis Optimizing retrofit strategies for cost-effectiveness and energy performance is currently a manual…

Kyleen Rockwell Kyleen is responsible for providing computational analysis for a wide range of project types and scales. As a professional engineer and licensed architect she leverages her expertise to support proof of concept, energy optimization, microgrid design, master planning, carbon analysis, daylight, computational fluid dynamics and shading design simulations. “While we may be competitors in our industry, the knowledge…

IBPSA-USA held its summer semiannual meeting at Hanny’s in Phoenix, AZ, on June 21. While temperatures outside reached 108 °F in the shade, and several IBPSA-USA members brought along thermal imaging cameras, the indoor experience included cool drinks, unusual art and design, and good conversation. IBPSA-USA president Nathaniel Jones provided brief updates on current association activities and events. These included:…