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Automatic Building Energy Modeling (AutoBEM)

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About

Oak Ridge National Laboratory has developed the Automatic Building Energy Modeling (AutoBEM) software suite to process multiple types of data, extract building-specific descriptors, generate building energy models, and simulate them on High Performance Computing (HPC) resources.

The Automatic Building Energy Modeling (AutoBEM) software suite utilizes OpenStudio to generate building energy models and EnergyPlus to perform simulations using the models. In a groundbreaking endeavor, the Model America dataset (122,930,327 buildings) opened the doors to a vast array of U.S. building energy models. This dataset covered approximately 98% of the nation’s building stock.

Based on the simulation, AutoBEM has the capability to generate energy consumption profiles for building stocks, with different time intervals such as year-based or minute-based. Additionally, it allows for precise adjustments to specific building features including, but not limited to, building types, building vintages, and available floor areas. This high-resolution simulation can then generate energy demand profiles based on various environmental (weather) scenarios. In essence, AutoBEM offers a flexible and dependable framework for estimating building energy demand across a vast majority of buildings in the United States. These demand profiles can be utilized for building energy modeling analysis or converted into simulated historical building energy consumption to validate predictions.

AutoBEM enables unparalleled explorations across a vast spectrum of scales, from intricate evaluations at the city level to sweeping analyses encompassing counties, utilities, and even the entire nation. Through its revolutionary capabilities, AutoBEM sparked a paradigm shift in the investigation of electricity-saving technologies, peak-demand reduction methods, climate projections, and numerous other critical applications.

Automatic Detection and Building Energy Model Creation (AutoBEM)

Capabilities

  • AutoBEM – AutoBEM framework has been developed to ingest multiple data sources and create an EnergyPlus (DOE’s $95M simulation tool) model of every building in an area of interest. 
  • Digital twin – Once a digital twin of all the buildings in a selected area is created, most what-if questions can be answered in approximately 6.5 hours. ORNL researchers simulate energy efficiency opportunities (technologies or policies) on the world’s fastest buildings simulator to quantify the energy, demand, emissions, and financial savings of these opportunities.
  • Virtual utility – AutoBEM has been used to develop a model of 178,368 buildings for a utility and analyze demand and energy efficiency opportunities. Some preliminary results are available via an interactive web analytics portal. These results can be aggregated to determine EE opportunities for any geographical area (e.g. critically loaded feeders, substations, etc.).

     

Utilities

  • AutoBEM has been applied to create a “digital twin” of all buildings in the service area of the Electric Power Board (EPB) of Chattanooga, TN. Every model has been compared to EPB’s 15-minute electricity use of each building, then improved the models for many use cases including:
    • Demand management – smart thermostats (e.g. pre-conditioning strategies) and water heaters.
    • Energy efficiency – lighting, infiltration, insulation, HVAC efficiency and types (e.g. dual fuel with dynamic control), water heaters, and integrated heat pumps.
    • Resilience and infrastructure planning – electrification, electric vehicle charging strategies, weather (3-5 days) and climate (10-80 years) impact on building loads attached to critically-loaded feeders and substations.

Public Data

ORNL has created a model of every U.S. building. An OpenStudio and EnergyPlus simulation of 97.8% of U.S. buildings was generated using 45 million core-hours of Argonne National Laboratory’s Theta supercomputer and made freely/openly available.

The model requires Globus personal endpoint to download. 

Before downloading, consider the better-formatted building data and models below.

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