This article is part of BD+C's special five-part Technology Report 2014: Top tech tools and trends for AEC professionals.
For more than a decade, the U.S. Department of Energy has made its EnergyPlus energy analysis and thermal load simulation program available for free to Building Teams.
Using EnergyPlus, AEC professionals can model heating, cooling, lighting, ventilation, and other energy flows, as well as water consumption, within a building design.
But without a major rewrite of the program since its creation, using EnergyPlus could exhibit slow performance and occasionally inaccurate analysis results.
The programming language it was originally written in, Fortran, simply could not keep up with advances in the hardware and software computing environment. FORTRAN is a language aimed at scientific programs to be run by scientists for days and weeks on supercomputers, not by building designers running multiple iterations of a design idea in a matter of a few hours.
Because it wasn't well integrated with common architectural design software, EnergyPlus never gained widespread adoption by architects working in the conceptual stage of a project.
At Greenbuild 2013, Autodesk (working pro bono) turned over brand new engine source code to the DOE to create a completely rewritten EnergyPlus for a forthcoming version. The new code will be made available under the DOE’s open source license.
Autodesk’s software engineers translated EnergyPlus—more than 600,000 lines of code—to C++, a modern, object-oriented language that is better supported on mass-market hardware and software platforms.
As a result, a larger ecosystem of developers and vendors will be able to contribute updates to the code in order to improve performance and decrease the time required to run energy model simulations.
The forthcoming version will also work better with BIM applications, auditing tools, and energy dashboards after it is released and developers are able to work on improved integrations.
For more, visit: http://apps1.eere.energy.gov/buildings/energyplus.
Related Stories
Green | Jul 23, 2015
NASA: U.S. headed for worst droughts in a millennium
Data from NASA shows carbon emissions could be the driving force behind devastating water shortages and record droughts in the western U.S.
Airports | Jul 22, 2015
MUST SEE: JFK airport taps Gensler to design terminal for animals
Pets can enjoy luxurious spa and grooming services before being transported directly to their flight from the terminal.
Office Buildings | Jul 21, 2015
Finally! There's a workplace trend that’s worth embracing
There’s a realization by corporate real estate executives that in order to create a successful workplace, there must be alignment between their people, their place, and the tools they have to do their jobs.
University Buildings | Jul 21, 2015
Maker spaces: Designing places to test, break, and rebuild
Gensler's Kenneth Fisher and Keller Roughton highlight recent maker space projects at MIT and the University of Nebraska that provide just the right mix of equipment, tools, spaces, and disciplines to spark innovation.
Architects | Jul 21, 2015
Architecture Billings Index at highest mark since 2007
This is the first month in 2015 that all regions are reporting positive business conditions, said AIA Chief Economist Kermit Baker.
BIM and Information Technology | Jul 20, 2015
New stylus brings digital sketching to the next level
Without buttons, users can change the weight of the stylus’ stroke.
Architects | Jul 20, 2015
New York design competition looks to shed the sidewalk shed
New York, which has nearly 200 total miles of sidewalk sheds, is seeking a concept that is practical but that also looks good.
Cultural Facilities | Jul 19, 2015
SET Architects wins design competition for Holocaust Memorial
The design for the memorial in Bologna, Italy, is dominated by two large metal monolithic structures that represent the oppressive wooden bunks in concentration camps in Germany during World War II.
Sports and Recreational Facilities | Jul 17, 2015
Japan scraps Zaha Hadid's Tokyo Olympic Stadium project
The rising price tag was one of the downfalls of the 70-meter-tall, 290,000-sm stadium. In 2014, the cost of the project was 163 billion yen, but that rose to 252 billion yen this year.
Cultural Facilities | Jul 16, 2015
Louisville group plans to build world's largest disco ball
The sphere would more than double the size of the current record holder.