IBPSA-USA

Ask a Modeler

  • Where can I go to learn about energy modeling and simulation as someone new to the industry?
    Where can I go to learn about energy modeling and simulation as someone new to the industry?
    Where can you go to learn about energy modeling and simulation as someone new to the industry? Dear New Bee,This is a great question, and one that IBPSA-USA has been evaluating for some time. I’m excited to share an update about...
  • What’s changing with the Commercial Building Energy Tax Deduction (179D) from the Inflation Reduction Act (IRA), and how can my firm claim the deduction?
    What’s changing with the Commercial Building Energy Tax Deduction (179D) from the Inflation Reduction Act (IRA), and how can my firm claim the deduction?
    Dear Deduction Dabbler, The 179D Energy Efficiency Commercial Buildings Deduction (179D) is a tax incentive program that has been in effect since 2006, and was made permanent by legislation passed at the end of 2020. Its primary purpose is to promote energy efficiency in buildings by providing financial incentives for making energy-efficient building improvements in the areas of HVAC, lighting, and building envelopes.
  • I’ve noticed that different standards provide different schedule assumptions for things like occupancy, lighting, and plug loads. What schedules should I use in my model?
    I’ve noticed that different standards provide different schedule assumptions for things like occupancy, lighting, and plug loads. What schedules should I use in my model?
    Dear Behind Schedule, Schedules can have a big impact on energy consumption and associated savings. Energy models use many different schedules. People/occupancy, lights, plug loads, heating/cooling setpoints, and service water heating are usually the main ones...
  • How to incorporate biomimicry into a building system model?
    How to incorporate biomimicry into a building system model?
    Dear Biophile, To answer this question, the first important step is to understand what biomimicry is and to distinguish between biomimetic and non-biomimetic design practices...
  • Modeling novel or atypical envelope materials or assemblies
    VIP with a polymer based barrier film (produced by NanoPore Inc)
    Dear Leading Edge, Energy modeling is a critical tool in evaluating the performance of new envelope technologies under diverse sets of conditions – building type, operation, climate conditions, and others...
  • Are there strategies to save cost and energy by changing the way HVAC load is calculated?
    Are there strategies to save cost and energy by changing the way HVAC load is calculated?
    Dear Right Size, Rejoice, as gone are the days of boasting about the biggest kit in town. Now is the time of the kit that is just the right size to do the right job right...
  • How do you utilize utility bill data to guide retrofit projects?
    How do you utilize utility bill data to guide retrofit projects?
    Dear Bill Overload, Retrofit analysis uses historic utility bill data (consumption, demand, and cost) to inform a utility efficiency project’s design strategy. Utility bill data can be compiled into a broad overview of a building’s energy usage...
  • What to know about participating in IBPSA hackathon?
    What to know about participating in IBPSA hackathon?
    Dear Hack-Curious, You are interested in participating in a hackathon? Congratulations! You are ready to become a vital team member for whatever project you are going to be a part of...
  • How to Connect EnergyPlus with Other Energy Modeling Tools?
    How to Connect EnergyPlus with Other Energy Modeling Tools?
    This month, we will focus on how we can connect EnergyPlus with other applications and discuss some exciting use cases–like storing ice cream!
  • When and How Should I Update My Energy Modeling Software?
    When and How Should I Update My Energy Modeling Software?
    This month, we will focus on the first of these questions: When during my project lifecycle should I update energy modeling software, and how should I go about it?
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