Welcome to the Building Technologies Office's Building Energy Modeling blog.

March 17, 2022

Collaboration + Automation = Pollination

Long known for daylighting, energy, and comfort analysis plugins for Grasshopper/Rhino3D, Ladybug Tools introduces a new tool-agnostic simulation ecosystem that acts as a collaborative workspace for experts, beginners, and application providers.

August 10, 2021

Cove.Tool Officiates Perfect Marriage Between Reduced Order Modeling and OpenStudio

Cove.tool is using OpenStudio to integrate detailed energy simulation into its reduced-order modeling design platform, giving architects an end-to-end workflow with capabilities tailored to the needs of different design stages.

July 26, 2021

It's Alive! After Five Years in the Lab, Spawn of EnergyPlus is Finally Here

For the past five years, DOE and the national labs have been developing a next-generation simulation engine that bridges the worlds of BEM and controls. In May of this year, Spawn, was released as part of the Modelica Buildings Library.

July 17, 2021

EnergyPlus Turns 20!

On April 12, 2021 EnergyPlus, DOE's flagship BEM engine celebrated its twentieth birthday. Several of those who were there at the beginning look back at those early days and remark on the changes they've seen in the last two decades.

March 22, 2021

New Toolkit Helps Save Energy in Two Data Centers—and Potentially Many More

A team led by the University of Colorado-Boulder has developed a combined cooling and airflow simulation and optimization toolkit that has already enabled significant energy savings in two data centers.

February 23, 2021

Architecture Firm Perkins&Will “SPEEDs” Up Early-Stage BEM

The Energy lab at architecture firm Perkins&Will used OpenStudio to develop a cloud-based energy analysis tool that supports its 2,000 architects.

January 19, 2021

DOE Publishes Research and Development Opportunities Document for Building Energy Modeling

DOE has published a peer reviewed "RDO" document that identifies barriers to BEM adoptions and potential roles for BTO in overcoming these barriers.

July 27, 2020

Python EMS: A Unique EnergyPlus Feature Gets a Serious Upgrade

Released in March 2020, EnergyPlus 9.3.0 fast-forwards the Energy Management System feature about 40 years.

September 30, 2019

Autodesk Brings Detailed EnergyPlus HVAC Simulation to Revit

New Systems Analysis capabilities use EnergyPlus and the OpenStudio SDK to allow Revit users to simulate detailed HVAC systems.

December 27, 2018

RMI Enlists EnergyPlus to Power its Portfolio Energy Optimization Initiative

RMI is developing a web-based platform to perform portfolio-level analysis, prioritize energy projects, and track and deliver results.